DQR ID | Subject | Data Streams Affected |
---|---|---|
D000210.2 | SGP/EBBR - EBBR E19 Changeout, Data Missing/Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D000221.4 | SGP/EBBR - EBBR E19 Wind Speed Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D000221.5 | SGP/EBBR - EBBR E15 Anemometer Cup Off, Wind Speed Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D000225.2 | SGP/EBBR- EBBR E15 Air Temperatures Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D000225.4 | SGP/EBBR - EBBR E18 Right Humidity Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D000225.5 | SGP/EBBR - EBBR E18 Data Incorrect After Lightning Strike | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D000225.6 | SGP/EBBR - EBBR E18 Much Data Missing After Lightning Strike | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D000301.2 | SGP/EBBR - EBBR E19 Net Radiation Incorrect | sgp30ebbrE19.b1, sgp15ebbrE19.b1, sgp5ebbrE19.b1 |
D000301.4 | SGP/EBBR - EBBR E18 Net Radiation Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D010213.3 | SGP/EBBR/E15 - EBBR E15 Wind Speed Iced | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
D010213.4 | SGP/EBBR/E18 - EBBR E18 Wind Speed Iced | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
D010213.5 | SGP/EBBR/E18 - EBBR E18 Wind Speed Iced | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
D010213.6 | SGP/EBBR/E19 - EBBR E19 Wind Speed Iced | sgp30ebbrE19.b1, sgp15ebbrE19.b1, sgp5ebbrE19.b1 |
D010413.3 | SGP/EBBR/E15 - E15 EBBR Reference Temperature Incorrect | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D010413.4 | SGP/EBBR/E15 - E15 EBBR Data Incorrect | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.00 |
D010413.5 | SGP/EBBR/E15 - E15 EBBR Data Missing | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D010413.6 | SGP/EBBR/E15 - E15 EBBR Data Incorrect | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.00 |
D010413.7 | SGP/EBBR/E15 - E15 EBBR Data Missing | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D010413.8 | SGP/EBBR/E15 - E15 EBBR Some Soil Temperatures and Heat Flows Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D010413.9 | SGP/EBBR/E15 - E15 EBBR Some Soils and Flux Data Incorrect | sgp30ebbrE15.b1 |
D010416.1 | SGP/EBBR/E15 - E15 EBBR AEM Stuck in Middle | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D010416.10 | SGP/EBBR/E18 - E18 EBBR Data Incorrect | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D010416.11 | SGP/EBBR/E18 - E18 EBBR Right RH Incorrect | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D010416.12 | SGP/EBBR/E18 - E18 EBBR Thum Right Incorrect | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
D010416.2 | SGP/EBBR/E15 - E15 EBBR AEM Replacement | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D010416.3 | SGP/EBBR/E15 - E15 EBBR Battery Voltage Low | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D010416.4 | SGP/EBBR/E15 - E15 EBBR Incorrect Net Radiation | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D010416.8 | SGP/EBBR/E18 - E18 EBBR Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D010416.9 | SGP/EBBR/E18 - E18 EBBR Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D010427.1 | SGP EBBR E18 - E18 EBBR Wind Direction Frozen | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
D010427.2 | SGP EBBR E18 - E18 EBBR Wind Direction Frozen | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
D010427.3 | SGP EBBR E18 - E18 EBBR Left Ventilator Fan Not Working | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D010427.4 | SGP EBBR E19 - E19 EBBR Left RH Probe Temperature Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D010427.5 | SGP EBBR E19 - E19 EBBR Left Aspirator Housing Off | sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D010427.6 | SGP EBBR E19 - E19 EBBR Left Air Temperature Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D010427.7 | SGP EBBR E19 - E19 EBBR Data Incorrect During J-panel Replacement | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D010427.8 | SGP EBBR E19 - E19 EBBR Wind Direction Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D010427.9 | SGP EBBR E19 - E19 EBBR Soil Heat Flow #1 Sign Reversed | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D011102.3 | SGP EBBR E19 - E19 EBBR Soil Temperature 3 Intermittenmtly Incorrect | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D011102.7 | SGP EBBR E19 - E19 EBBR TS3 Intermittent Incorrect | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D011102.8 | SGP EBBR E19 - E19 EBBR Wind Speed Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D011127.28 | SGP EBBR E15 - E15 EBBR Data Incorrect During 6 Month Checks | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D011127.29 | SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D011127.30 | SGP EBBR E19 - E19 EBBR Data Incorrect During 6 Month Checks | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D011207.12 | SGP EBBR E15 - E15 EBBR Battery Voltage Low, Data Incorrect | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D011218.1 | SGP EBBR E15 - E15 EBBR Data Zeros Incorrect | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D011218.5 | SGP EBBR E18 - E18 EBBR AEM Frozen, Data Incorrect | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
D011218.6 | SGP EBBR E18 - E18 EBBR Wind Direction Frozen, Data Incorrect | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D011218.7 | SGP EBBR E18 - E18 EBBR Wind Speed Frozen, Data Incorrect | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
D011218.8 | SGP EBBR E18 - E18 EBBR Right RH Incorrect | sgp5ebbrE18.b1, sgp30ebbrE18.b1, sgp15ebbrE18.b1 |
D020129.1 | SGP EBBR E15 - E15 EBBR Recalibration Changeout | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D020214.7 | SGP/EBBR/E15 - Data Incorrect During 6 Month Checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D020628.17 | SGP/EBBR/E15 - T/RH Check | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D020628.3 | SGP/EBBR/E15 - 3-month Check | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D020716.13 | SGP/EBBR/E15 - 6 Month Checks | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D020716.14 | SGP/EBBR/E18 - 6 Month Checks | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
D020716.15 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D020717.20 | SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes | sgp30ebbrE18.b1 |
D020717.21 | SGP/EBBR/E18 - AEM Hung | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D020717.22 | SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout | sgp30ebbrE18.b1 |
D020717.23 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect | sgp30ebbrE18.b1 |
D020717.24 | SGP/EBBR/E18 - Left Air Temperature Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D020717.25 | SGP/EBBR/E18 - Reference Temperature Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D020717.26 | SGP/EBBR/E19 - Reprocess: Soil Heat Flow #3 Incorrect | sgp30ebbrE19.b1 |
D020717.27 | SGP/EBBR/E19 - Reprocess: Soil Temperature #3 Incorrect | sgp30ebbrE19.b1 |
D020717.29 | SGP/EBBR/E19 - Most Measurements Incorrect | sgp15ebbrE19.b1, sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00 |
D020717.30 | SGP/EBBR/E19 - All Measurements Zero | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
D020717.31 | SGP/EBBR/E19 - Pressure Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D020717.32 | SGP/EBBR/E19 - Measurements Incorrect After CR10 Replacement | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
D020717.33 | SGP/EBBR/E19 - Low Battery Voltage | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
D021113.1 | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
D021113.4 | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
D030110.23 | SGP/EBBR/E18 - Data Incorrect during 6 month checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D030110.24 | SGP/EBBR/E19 - Data Incorrect during 6 month checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030110.35 | SGP/EBBR/E15 - Data Incorrect during 6 month checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D030115.10 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High | sgp30ebbrE18.b1 |
D030115.11 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High | sgp30ebbrE18.b1 |
D030115.12 | SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D030115.13 | SGP/EBBR/E18 - Data Incorrect After Logger Restart | sgp30ebbrE18.b1 |
D030115.14 | SGP/EBBR/E18 - Water in Net Radiometer Dome | sgp30ebbrE18.b1 |
D030115.7 | SGP/EBBR/E15 - REPROCESS: Soil Moisture #1 Offset | sgp30ebbrE15.b1 |
D030115.8 | SGP/EBBR/E15 - Data Mostly Zero Following Logger Restart | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D030115.9 | SGP/EBBR/E15 - Pressure Low | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D030116.10 | SGP/EBBR/E19 - REPROCESS: Soil Heat Flow #3 Incorrect Calibration | sgp30ebbrE19.b1 |
D030116.11 | SGP/EBBR/E19 - Water in Net Radiometer Dome | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030116.6 | SGP/EBBR/E19 - Incorrect data after power interruption | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030116.7 | SGP/EBBR/E19 - Most Measurements Zero following Restart | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030116.8 | SGP/EBBR/E19 - REPROCESS: Soil Temperature #3 Incorrect | sgp30ebbrE19.b1 |
D030116.9 | SGP/EBBR/E19 - REPROCESS: Soil Heat Flow #1 Incorrect | sgp30ebbrE19.b1 |
D030117.1 | SGP/EBBR/E19 - Pressure Low | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030117.24 | SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High | sgp30ebbrE18.b1 |
D030117.4 | SGP/EBBR/E19 - Soil Temperatures #2 and #3 Intermittently Bad | sgp30ebbrE19.b1 |
D030117.6 | SGP/EBBR/E19 - Measurements zero following logger restart | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D030117.7 | SGP/EBBR/E19 - Change of Energy Storage Incorrect | sgp30ebbrE19.b1 |
D030711.11 | SGP/EBBR/E19 - Soil Temperature #2 Incorrect | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D030711.12 | SGP/EBBR/E19 - All Data Zeros | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030711.13 | SGP/EBBR/E19 - Several Soil Measurements Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D030711.14 | SGP/EBBR/E19 -Several Soil Measurements Were Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D030711.16 | SGP/EBBR/E19 - AEM Hung in home30 position | sgp30ebbrE19.b1 |
D030711.17 | SGP/EBBR/E19 - Soil Heat Flow #3 Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D030711.19 | SGP/EBBR/E19 - Soil Heat Flow#1 Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D030711.20 | SGP/EBBR/E19 - Many Measurements Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030711.22 | SGP/EBBR/E18 - AEM Hung | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D030712.18 | SGP/EBBR/E15 - 6 Month Checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D030712.19 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D030712.20 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030724.2 | SGP/EBBR/E15 - Wind Direction 10 Degrees Low | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D030728.2 | SGP/EBBR/E15 - Top Humidity reported as zero in 30 minute data. | sgp30ebbrE15.b1 |
D030919.10 | SGP/EBBR/E19 - Water in Net Radiometer; Surface Fluxes are Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D030919.9 | SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
D030922.6 | SGP/EBBR/E19 - Tair Right Offscale | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D031031.2 | SGP/EBBR/E15 - Reference Temperature Failed | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D031031.6 | SGP/EBBR/E15 - Water In Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D031031.9 | SGP/EBBR/E15 - Soil Temperature #5 Incorrect, Surface Fluxes Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D031106.1 | SGP/EBBR/E15 - Soil Temperature #5 Incorrect, Surface Fluxes Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D031110.7 | SGP/EBBR/E15 - AEM Hung Between Home Positions, Surface Fluxes Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D031110.8 | SGP/EBBR/E19 - Battery Voltage Too Low, Most Measurements Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031117.2 | SGP/EBBR/E19 - AEM Stuck In One Position, Surface Fluxes Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D031124.11 | SGP/EBBR/E19 - Data Missing During Recalibration Changeout | sgp15ebbrE19.b1, sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgpebbrE19.00, sgpebbrE19.01 |
D031204.11 | SGP/EBBR/E15 - 6 Month Checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D031204.16 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D031204.17 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031204.18 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031204.2 | SGP/EBBR/E19 - Data All Zeros | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031222.18 | SGP/EBBR/E15 - Net Radiometer Iced Over During Storm | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D031222.19 | SGP/EBBR/E15 - Wind Speed Sensor Frozen By Ice Storm | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D040106.1 | SGP/EBBR/E19 - Wind Speed Sensor Frozen Stopped by Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040112.1 | SGP/EBBR/E15 - Wind Direction About 130 Degrees Low | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D040206.1 | SGP/EBBR/E18 - AEM Sitting At Home 15 Position | sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
D040206.4 | SGP/EBBR/E19 - Low Battery Voltage Caused Incorrect Data | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040227.1 | SGP/EBBR/E15 - Net Radiometer not level | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D040304.14 | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D040304.17 | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040304.18 | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040304.26 | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D040407.2 | SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient | sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040505.3 | SGP/EBBR/E18 - Pressure Low | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040507.1 | SGP/EBBR/E15 - Wind Speed Incorrect | sgp15ebbrE15.b1, sgp30baebbrE15.c1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D040525.3 | SGP/EBBR/E19 - Metadata errors | sgp15ebbrE19.b1, sgp30baebbrE19.c1, sgp30ebbrE19.b1 |
D040525.4 | SGP/EBBR/E19 - Metadata errors | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040608.7 | SGP/EBBR/E19 - AEM Hung Inbetween Home Positions | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040723.4 | SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs | sgp30ebbrE18.b1 |
D040813.6 | SGP/EBBR/E18 - Soil Temperature #2 Incorrect | sgp30ebbrE18.b1 |
D041004.4 | SGP/EBBR/E15 - Soil Moisture Coefficients Incorrect | sgp30ebbrE15.b1 |
D041222.13 | SGP/EBBR/E15 - 6 Month Checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D041222.14 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D041222.15 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050206.11 | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D050206.12 | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D050206.13 | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050207.7 | SGP/EBBR/E15 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D050207.8 | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
D050207.9 | SGP/EBBR/E19 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050215.18 | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D050215.19 | SGP/EBBR/E15 - Wind Direction Frozen Stopped By Ice | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D050215.20 | SGP/EBBR/E19 - Wind Speed Constant | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050324.1 | SGP/EBBR/E15 - Soil Heat Flows Undermeasured, and Latent and Sensible Heat Fluxes Overstimated | sgp30ebbrE15.b1 |
D050324.2 | SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050624.2 | SGP/EBBR/E15 - Net Radiation Too Large - Water in Bottom | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D050624.3 | SGP/EBBR/E19 - Net Radiation Incorrect - Cable Chewed by Rodents | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050719.10 | SGP/EBBR/E15 - Improved EBBR CR10 Program | sgp30ebbrE15.b1 |
D050719.11 | SGP/EBBR/E18 - Improved EBBR CR10 Program | sgp30ebbrE18.b1 |
D050719.12 | SGP/EBBR/E19 - Improved EBBR CR10 Program | sgp30ebbrE19.b1 |
D051106.10 | SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D051106.25 | SGP/EBBR/E15 - Average Soil Heat Flux Incorrect | sgp30ebbrE15.b1 |
D051106.26 | SGP/EBBR/E18 - Average Soil Heat Flux Incorrect | sgp30ebbrE18.b1 |
D051106.27 | SGP/EBBR/E19 - Average Soil Heat Flux Incorrect | sgp30ebbrE19.b1 |
D051106.9 | SGP/EBBR/E15 - Soil Set #5 Temperature, Moisture, and Heat Flow Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D051111.12 | SGP/EBBR/E15 - metadata corrections | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D051111.13 | SGP/EBBR/E18 - metadata corrections | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D051112.1 | SGP/EBBR/E19 - metadata corrections | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D051214.2 | SGP/EBBR/E19 - Net Radiation, Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D051214.3 | SGP/EBBR/E19 - Incorrect Sensible and Latent Heat Fluxes | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D051215.3 | SGP/EBBR/E15 - Net Radiation, Sensible and Latent Heat Fluxes Incorrect. | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D060111.10 | SGP/EBBR/E15 - Incorrect Sensible and Latent Heat Fluxes | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D060111.11 | SGP/EBBR/E15 - Reprocess: Sensible and Latent Heat Fluxes, Soil Set #2 Sometimes Incorrect | sgp30ebbrE15.b1 |
D060501.15 | SGP/EBBR/E15 - Wind Speed Sensor Frozen Stopped | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D060501.17 | SGP/EBBR/E18 - Wind Speed Zero | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D060818.6 | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D061103.3 | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect | sgp30ebbrE18.b1 |
D061114.9 | SGP/EBBR/E19 - Sensible and Latent Heat Fluxes Incorrect | sgp30ebbrE19.b1 |
D061220.10 | SGP/EBBR/E18 - Wind Direction Dependency of Surface Fluxes and General Data Quality Information | sgp30ebbrE18.b1 |
D061220.11 | SGP/EBBR/E19 - Wind Direction Dependency of Surface Fluxes and General Data Quality Information | sgp30ebbrE19.b1 |
D061220.9 | SGP/EBBR/E15 - Wind Direction Dependency of Surface Fluxes and General Data Quality Information | sgp30ebbrE15.b1 |
D080424.1 | SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D080527.2 | SGP/EBBR/E19 - Sensible and latent heat flux and net radiation incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D080616.4 | SGP/EBBR/E15 - Water in dome | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D080616.5 | SGP/EBBR/E15 - Soil Heat Flow #4 Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D080702.2 | SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D090313.14 | SGP/EBBR/E15 - Wind Speed Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D090313.2 | SGP/EBBR/E15 - Soil Moisture and Soil Temp #1 Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D090313.3 | SGP/EBBR/E18 - Wind Speed Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D090313.4 | SGP/EBBR/E19 - Wind Speed Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D100202.3 | SGP/EBBR/E19 - Wind direction sensor frozen near north | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D100203.1 | SGP/EBBR/E19 - Wind speed sensor frozen stopped | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D100510.1 | SGP/EBBR/E15 - Sensible and Latent Heat Fluxes Low (Net Radiation too low) | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D101007.1 | SGP/EBBR/E15 - Sensible and Latent Heat Flux Suspect - Soil Heat Flow 5 Problem | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D111004.2 | SGP/EBBR/E19 - Nighttime data missing | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D120128.2 | SGP/EBBR/E15 - Soil heat flow #1 failure | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D120305.1 | SGP/EBBR/E15 - Soil heat flow #5 failure | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
D120507.4 | SGP/EBBR/E15 - Sensible and Latent heat fluxes incorrect | sgp30ebbrE15.b1 |
D940105.1 | Incorrect readings for pressure sensor | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D941021.13 | SGP/EBBR/E15 - Net Radiometer Hemisphere Changes | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D941021.8 | SGP/EBBR/E15 - Net Radiometer Hemisphere Changes | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
D950126.4 | SGP/EBBR/E15 - Frozen Wind Speed Instrument | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D950626.20 | SGP/EBBR/E15 - Battery Voltage Drop, Storage Module Change | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D950626.3 | SGP/EBBR/E15 - Frozen Wind Speed Sensor | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D950816.3 | SGP/EBBR/E15 - AEM Home 15 Values High | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D950908.1 | SGP/EBBR/E15 - AEM Not Exchanging | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D950921.2 | SGP/EBBR/E15 - AEM Replaced | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D951116.4 | SGP/EBBR/E15 - AEM Exchange Stopped in Snow and Freezing Rain | sgp30ebbrE15.b1 |
D951220.5 | SGP/EBBR/E15 - Annual calibration changeout | sgp5ebbrE15.b1, sgp30ebbrE15.b1 |
D960104.4 | SGP/EBBR/E15 - Wind Speed Cups Frozen | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D960119.1 | SGP/EBBR/E15 - Reprocess: Soil Temperature Probe Malfunction | sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D960119.2 | SGP/EBBR/E15 - Battery Voltage Drop | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D960508.7 | SGP/EBBR/E15 - 3-month check | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D961122.25 | SGP/EBBR/E15 - EBBR 3 Month Checks - 10 EFs | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
D970330.2 | SGP/EBBR/E15 - Wind Speed Cups frozen | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D970703.3 | SGP/EBBR/E15 - Connections Affecting Home Signals | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D971017.3 | SGP/EBBR/E19 - Reprocess: E19 EBBR Soil heat Flow Probe #5 Upsidedown | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
D971021.6 | SGP/EBBR/E15 - EBBR Biannual Checks | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D971027.6 | SGP/EBBR/E18 - Left RH Probe Temperature Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
D980110.1 | SGP/EBBR/E19 - Battery Voltage Drop | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D980110.2 | SGP/EBBR/E19 - Noisy Sensible and Latent Heat Fluxes | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
D980117.14 | SGP/EBBR/E15 - EBBR Frozen Wind Speed | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
D980117.18 | SGP/EBBR/E19- EBBR Frozen Wind Speed | sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
D980117.24 | SGP/EBBR/E15 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
D980117.29 | SGP/EBBR/E15 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D980410.9 | SGP/EBBR/E15 - Wind Speed Sensor Frozen | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D980416.13 | SGP/EBBR/E15 - 3-Month Check | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D980416.14 | SGP/EBBR/E18 - 3 Month Check | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D980416.15 | SGP/EBBR/E19 - 3-Month Check | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D980513.4 | SGP/EBBR/E15 - Pressure Diurnal Fluctuations | sgp30ebbrE15.b1 |
D980513.5 | SGP/EBBR/E15 - Pressure Too High | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D980513.6 | SGP/EBBR/E15 - Left T/RH Probe Temperature Too Large | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D980529.11 | SGP/EBBR/E15 - Six Month Checks | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D980529.12 | SGP/EBBR/E18 - Six Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D980529.13 | SGP/EBBR/E19 - Six-Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D980623.2 | SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D981113.3 | SGP/EBBR/E15 - Aspirator loosened from AEM mount | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D990127.10 | SGP/EBBR/E18 - Water In Net Radiometer, Flux Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D990127.23 | SGP/EBBR/E18 - Wind Direction Data Incorrect (revised) | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
D990127.24 | SGP/EBBR/E19 - Wind Direction Data Incorrect (revised) | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00 |
D990127.26 | SGP/EBBR/E15 - Wind Direction Data Incorrect (revised) | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D990127.35 | SGP/EBBR/E19 - Wind Speed Data Incorrect | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00, sgp15ebbrE19.b1 |
D990127.36 | SGP/EBBR/E19 - Wind Speed Data Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00 |
D990127.37 | SGP/EBBR - EBBR E18 Wind Speed Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
D990127.38 | SGP/EBBR/E18 - Wind Speed Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
D990127.39 | SGP/EBBR/E18 - Wind Speed Data Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
D990127.44 | SGP/EBBR/E15 - Wind Speed Data Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D990127.45 | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D990127.46 | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
D990311.1 | SGP/EBBR/E15 - Temperatures Incorrect | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
D990409.9 | SGP/EBBR/E19 - Net Radiation Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D990421.4 | SGP/EBBR/E19 - Incorrect Tref, Tair Data, Bowen Ratio, latent and sensible heat fluxes | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D990622.2 | SGP/EBBR/E18 - Pressure Incorrect | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
D990622.3 | SGP/EBBR/E19 - Temperature of Left Humidity Probe Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/1999 | 1430 | 07/20/1999 | 1830 |
Subject: | SGP/EBBR - EBBR E19 Changeout, Data Missing/Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | During changeout of the EBBR system at E19, data was missing for the time period, except for 1815-1830 GMT, when the data was incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/31/2000 | 2245 | 02/02/2000 | 1640 |
Subject: | SGP/EBBR - EBBR E19 Wind Speed Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The anemometer cups were frozen stalled during the period. The following values were therefore incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/04/1999 | 2215 | 08/10/1999 | 1500 |
Subject: | SGP/EBBR - EBBR E15 Anemometer Cup Off, Wind Speed Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | An anemometer cup fell off. The following values were therefore incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/27/1999 | 1530 | 07/27/1999 | 1530 |
Subject: | SGP/EBBR- EBBR E15 Air Temperatures Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | When the reference temperature sensor was being replaced, the left and right thermocouple air temperatures and humidity probe temperatures were incorrect. Affected data values were: 5 Minute: tref, tair_top, tair_bot, thum_top, thum_bot, vp_top, vp_bot 15 minute: rr_tref, rr_thum_l, rr_thum_r, tair_r, tair_l 30 minute: tref, tair_top, tair_bot, thum_top, thum_bot, vp_top, vp_bot, bowen, e, h |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/1999 | 0545 | 01/11/2000 | 2135 |
Subject: | SGP/EBBR - EBBR E18 Right Humidity Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | After the 3 December 99 lightning strike, the humidity portion of the right T/RH probe drifted downwards at times, causing vapor pressure gradients to be incorrectly measured. Therefore, sensible and latent heat fluxes were also incorrect. Since much of the data from the period is missing (because of latent effects of the lightning strike), little data is actually affected. The affected data values were: 5 minute: hum_top, hum_bot, vp_top, vp_bot 15 minute: mv_hum_r 30 minute: hum_top, hum_bot, vp_top, vp_bot, bowen, h, e |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/1999 | 0535 | 12/03/1999 | 0600 |
Subject: | SGP/EBBR - EBBR E18 Data Incorrect After Lightning Strike |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Immediately after the 3 December 99 lightning strike, all data from this EBBR system was incorrect. The system crashed at the end of this period. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/1999 | 0535 | 02/14/2000 | 0915 |
Subject: | SGP/EBBR - EBBR E18 Much Data Missing After Lightning Strike |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | On 3 December 99 this EBBR system was struck by lightning. Much of the data from this EBBR system for the stated period is missing. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/1999 | 0330 | 12/16/1999 | 1630 |
Subject: | SGP/EBBR - EBBR E19 Net Radiation Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiometer top dome was broken and water had entered. Net radiation values are therefore incorrect during the period. The affected data are: 5 minute: q 15 minute: mv_q 30 minute: q, h, e |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/21/1999 | 1330 | 09/22/1999 | 0300 |
Subject: | SGP/EBBR - EBBR E18 Net Radiation Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The net radiometer top dome was broken and water had entered. Net radiation values are therefore incorrect during the period. The affected data are: 5 minute: q 15 minute: mv_q 30 minute: q, h, e |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/10/2000 | 2130 | 12/12/2000 | 1715 |
Subject: | SGP/EBBR/E15 - EBBR E15 Wind Speed Iced |
DataStreams: | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The anemometer was frozen stopped by freezing rain. Indicated data is incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2000 | 0930 | 12/15/2000 | 0245 |
Subject: | SGP/EBBR/E18 - EBBR E18 Wind Speed Iced |
DataStreams: | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The anemometer was frozen stopped by freezing rain. Indicated data is incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/25/2000 | 2015 | 01/03/2001 | 1915 |
Subject: | SGP/EBBR/E18 - EBBR E18 Wind Speed Iced |
DataStreams: | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The anemometer was frozen stopped by freezing rain. Indicated data is incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/25/2000 | 1245 | 12/28/2000 | 1815 |
Subject: | SGP/EBBR/E19 - EBBR E19 Wind Speed Iced |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The anemometer was frozen stopped by freezing rain. Indicated data is incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/23/2000 | 0300 | 02/23/2000 | 2001 |
02/27/2000 | 1430 | 02/29/2000 | 0231 |
02/20/2000 | 1530 | 02/21/2000 | 1701 |
02/24/2000 | 0200 | 02/24/2000 | 1501 |
03/17/2000 | 1800 | 03/21/2000 | 1531 |
02/19/2000 | 1700 | 02/20/2000 | 0201 |
02/05/2000 | 1500 | 02/06/2000 | 1231 |
02/29/2000 | 1630 | 03/01/2000 | 0931 |
02/06/2000 | 1430 | 02/08/2000 | 0701 |
03/11/2000 | 1530 | 03/12/2000 | 0331 |
03/04/2000 | 1430 | 03/07/2000 | 1601 |
02/01/2000 | 1730 | 02/05/2000 | 0131 |
02/08/2000 | 1500 | 02/10/2000 | 1931 |
02/25/2000 | 0030 | 02/27/2000 | 0501 |
03/01/2000 | 1430 | 03/04/2000 | 0801 |
03/12/2000 | 1430 | 03/16/2000 | 1831 |
Subject: | SGP/EBBR/E15 - E15 EBBR Reference Temperature Incorrect |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | The reference temperature was incorrect during the indicated periods. This temperature is used to adjust air temperature measurements; therefore air temperature and resulting sensible and latent heat fluxes and Bowen ratio are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2000 | 1700 | 03/17/2000 | 1701 |
Subject: | SGP/EBBR/E15 - E15 EBBR Data Incorrect |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.00 |
Description: | All of the measurements (except, battery voltage, time_offset, lat, lon, etc.) were incorrect during the installation of a new reference temperature sensor. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2000 | 1600 | 03/17/2000 | 1631 |
Subject: | SGP/EBBR/E15 - E15 EBBR Data Missing |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The data for this period was missing, during replacement of the reference temperature sensor. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/04/2000 | 1530 | 04/04/2000 | 1531 |
Subject: | SGP/EBBR/E15 - E15 EBBR Data Incorrect |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.00 |
Description: | All of the measurements (except, battery voltage, time_offset, lat, lon, etc.) were incorrect during a logger upgrade. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/04/2000 | 1500 | 04/04/2000 | 1501 |
Subject: | SGP/EBBR/E15 - E15 EBBR Data Missing |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The data for this period was missing, during an upgrade of the data logger. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2000 | 0130 | 03/17/2000 | 0331 |
Subject: | SGP/EBBR/E15 - E15 EBBR Some Soil Temperatures and Heat Flows Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | For an unknown reason, some of the soil temperatures and soil heat flows were incorrect, leading to many of the calculated quantities being incorrect. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/04/2000 | 1830 | 04/04/2000 | 1831 |
Subject: | SGP/EBBR/E15 - E15 EBBR Some Soils and Flux Data Incorrect |
DataStreams: | sgp30ebbrE15.b1 |
Description: | The soil heat capacity measurements were incorrect for an unknown reason, resulting in incorrect average soil heat flow and latent and sensible heat fluxes. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/21/2000 | 0130 | 09/22/2000 | 1331 |
12/31/2000 | 1930 | 01/09/2001 | 1701 |
09/22/2000 | 2300 | 10/03/2000 | 1531 |
Subject: | SGP/EBBR/E15 - E15 EBBR AEM Stuck in Middle |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | When the AEM does not complete switching and becomes hung at a mid position, the indicated data measurements are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2000 | 2115 | 09/19/2000 | 2131 |
Subject: | SGP/EBBR/E18 - E18 EBBR Data Incorrect |
DataStreams: | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The EBBR data was incorrect during maintenance. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2000 | 0000 | 04/04/2000 | 2131 |
Subject: | SGP/EBBR/E18 - E18 EBBR Right RH Incorrect |
DataStreams: | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | Right RH being incorrect caused a number of calculated measurements to be incorrect also, including Bowen ratio, and latent and sensible heat fluxes. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/21/2000 | 2300 | 04/04/2000 | 2131 |
Subject: | SGP/EBBR/E18 - E18 EBBR Thum Right Incorrect |
DataStreams: | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The temperature portion of the right T/RH probe was not working. Calculated vapor pressure, Bowen ratio, and sensible and latent heat fluxes were also incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/03/2000 | 1545 | 10/03/2000 | 1815 |
Subject: | SGP/EBBR/E15 - E15 EBBR AEM Replacement |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Large home signals occured while the AEM was being replaced; the indicated data measurements are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2000 | 1700 | 10/05/2000 | 1901 |
10/05/2000 | 0700 | 10/05/2000 | 1601 |
10/04/2000 | 1045 | 10/04/2000 | 1316 |
Subject: | SGP/EBBR/E15 - E15 EBBR Battery Voltage Low |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | When EBBR battery voltage is 10.4 volts or less, the measurements are considered to be incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/15/2000 | 0730 | 10/17/2000 | 1516 |
Subject: | SGP/EBBR/E15 - E15 EBBR Incorrect Net Radiation |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Incorrect net radiation resulted in incorrect sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/18/2000 | 2100 | 04/18/2000 | 2101 |
Subject: | SGP/EBBR/E18 - E18 EBBR Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The EBBR data was incorrect while the datalogger was being upgraded/replaced. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/28/2000 | 1730 | 07/28/2000 | 1731 |
Subject: | SGP/EBBR/E18 - E18 EBBR Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The EBBR data was incorrect just after power was restored. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2000 | 1000 | 12/13/2000 | 1701 |
Subject: | SGP EBBR E18 - E18 EBBR Wind Direction Frozen |
DataStreams: | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped. The indicated measurements are incorrect as a result. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/26/2000 | 1330 | 12/29/2000 | 1901 |
Subject: | SGP EBBR E18 - E18 EBBR Wind Direction Frozen |
DataStreams: | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped. The indicated measurements are incorrect as a result. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/12/2000 | 0015 | 09/19/2000 | 2101 |
Subject: | SGP EBBR E18 - E18 EBBR Left Ventilator Fan Not Working |
DataStreams: | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The left ventilator fan was not working. Some of the indicated measurements may be incorrect (under some wind speed and direction conditions, cloud cover, and time of day, some of the data may be correct). The data is therefore described as suspect for the indicated period. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/02/1999 | 0030 | 12/02/1999 | 1631 |
Subject: | SGP EBBR E19 - E19 EBBR Left RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The Left RH probe temperature was drifting. The indicated measurements are incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/02/2000 | 1500 | 12/08/2000 | 1946 |
Subject: | SGP EBBR E19 - E19 EBBR Left Aspirator Housing Off |
DataStreams: | sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | The left aspirator housing fell off and thus the indicated measurements are incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/07/1999 | 0000 | 02/24/2000 | 1601 |
Subject: | SGP EBBR E19 - E19 EBBR Left Air Temperature Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | A bad capacitor on the J-panel caused left air temperature, and thus other measurements to be incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/09/2000 | 1630 | 03/09/2000 | 1701 |
Subject: | SGP EBBR E19 - E19 EBBR Data Incorrect During J-panel Replacement |
DataStreams: | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | The indicated data was incorreect during a J-panel replacement. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/12/2000 | 2030 | 12/13/2000 | 0731 |
Subject: | SGP EBBR E19 - E19 EBBR Wind Direction Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | The wind direction sensor was frozen stopped during the indicated period. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/24/1999 | 0445 | 01/25/2001 | 1531 |
Subject: | SGP EBBR E19 - E19 EBBR Soil Heat Flow #1 Sign Reversed |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | The sign was reversed (heat flow plate #1 was installed upside down), causing incorrect measurements, as indicated. The average soil heat flow can be recalculated by using an average of soil sensor sets 2-5. The recalculated average soil heat flow can then be used to recalculate latent and sensible heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2001 | 0000 | 05/07/2001 | 2356 |
05/21/2001 | 0000 | 05/21/2001 | 2356 |
Subject: | SGP EBBR E19 - E19 EBBR Soil Temperature 3 Intermittenmtly Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Soil Temperature # 3 was incorrect at times during these periods. Compare G3 with G1, G2, G4, and G5 to determine when TS3 was incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 04/01/2001 | 1631 |
Subject: | SGP EBBR E19 - E19 EBBR TS3 Intermittent Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Soil Temperature probe #3 was intermittently incorrect. Examine the data and compare G3 with G1-2 and G4-5 to see when TS3 is incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2001 | 0300 | 03/01/2001 | 1651 |
Subject: | SGP EBBR E19 - E19 EBBR Wind Speed Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | The wind speed sensor was iced stopped for a while on this day. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/02/2001 | 1604 | 10/02/2001 | 1742 |
04/17/2001 | 1850 | 04/17/2001 | 1945 |
Subject: | SGP EBBR E15 - E15 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/18/2001 | 1421 | 10/18/2001 | 1601 |
04/03/2001 | 2255 | 04/03/2001 | 2341 |
Subject: | SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/03/2001 | 1413 | 10/03/2001 | 1506 |
04/19/2001 | 1700 | 04/19/2001 | 2001 |
Subject: | SGP EBBR E19 - E19 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/27/2001 | 1735 | 06/26/2001 | 1501 |
Subject: | SGP EBBR E15 - E15 EBBR Battery Voltage Low, Data Incorrect |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | When the battery voltage is 10.4 volts or below, all selected data should be considered to be incorrect. See the battery voltage in the 15 minute data to determine times of incorrect data. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2001 | 1930 | 10/11/2001 | 1931 |
Subject: | SGP EBBR E15 - E15 EBBR Data Zeros Incorrect |
DataStreams: | sgp5ebbrE15.b1, sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | The data was all zeros after a logger restart for 5 , 15, and 30 minute periods. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/15/2001 | 0800 | 02/16/2001 | 2031 |
Subject: | SGP EBBR E18 - E18 EBBR AEM Frozen, Data Incorrect |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
Description: | The AEM was frozen in one position. The indicated data is incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/15/2001 | 0625 | 02/16/2001 | 2031 |
02/16/2001 | 2355 | 02/17/2001 | 1650 |
Subject: | SGP EBBR E18 - E18 EBBR Wind Direction Frozen, Data Incorrect |
DataStreams: | sgp5ebbrE18.b1, sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped. The indicated data is incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/15/2001 | 0620 | 02/17/2001 | 2006 |
Subject: | SGP EBBR E18 - E18 EBBR Wind Speed Frozen, Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp5ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The wind speed sensor was frozen stopped. The indicated data are incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/10/2001 | 1810 | 06/12/2001 | 2240 |
Subject: | SGP EBBR E18 - E18 EBBR Right RH Incorrect |
DataStreams: | sgp5ebbrE18.b1, sgp30ebbrE18.b1, sgp15ebbrE18.b1 |
Description: | The RH portion of the T/RH probe produced incorrect data. Sensible and latent heat fluxes and the Bowen ratio were also incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2001 | 1508 | 10/11/2001 | 1931 |
Subject: | SGP EBBR E15 - E15 EBBR Recalibration Changeout |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | During the indicated period the EBBR unit was being changed out with a recalibrated unit. All data is incorrect or missing. Unit #14 was removed; #6 was installed. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/13/2001 | 1700 | 11/13/2001 | 1801 |
Subject: | SGP/EBBR/E15 - Data Incorrect During 6 Month Checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/07/1994 | 1650 | 11/07/1994 | 1830 |
Subject: | SGP/EBBR/E15 - T/RH Check |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | During the month of November 1994, site operations personnel conducted field comparisons of the temperature and relative humidity sensors in the EBBRs and the HMI31 portable T/RH meter (with the removable probe). As is reflected in the home signal output, the automatic exchange mechanism was disabled in order to conduct the checks. Measurements were taken every 5 minutes, for a half hour each in the aspirated radiation shields (the HMI31 was inserted into the EBBR aspirated radiation shield to provide the same aspiration as the EBBR sensors received). Measurements of aspirator flow were also recorded. This information was provided to the mentor. The mentor then compared the field checks with the data recorded by the EBBRs. The periods of data and data fields that are incorrect because of the checks are listed below. Times are those at which the data are reported. Data Fields 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, bowen, e, h 5 minute: 1650, 1655, 1700, 1705, 1710, 1715, 1720, 1725, 1730, 1735, 1740, 1745, 1750, 1755, 1800, 1805 15 minute: 1700, 1715, 1730, 1745, 1800, 1815 30 minute: 1700, 1730, 1800, 1830 (EDITOR'S NOTE: The following analysis refers to all EBBRs installed in Nov 1994) Results of the T/RH comparisons: The combined accuracy of the HMI31 and EBBR temperature sensors (thermocouples or PRTDs) is +/- 0.4 degrees C. The combined accuracy of the HMI31 and EBBR RH sensors is +/- 4% for RH less than 80%, and +/- 6% for RH greater than 80%. The combined accuracy for each pair of EBBR sensors of the same type is essentially the same as the quantities stated above. All of the pairs of EBBR sensors show differences that fall within the stated combined accuracies. Although this sounds wonderful, a few of the differences are close to the combined accuracy, which, because of the small differences in temperature being measured (normally smaller than the magnitude of the combined accuracy) could lead to some incorrect estimation of sensible and latent heat flux. However, unless there would be substantial differences of calibration slope of two sensors in a pair, the switching of height of the sensors every 15 minutes by the automatic exchange mechanism will remove the offset between the sensors. The comparisons between the EBBR sensors and the HMI31 T/RH meter showed much larger differences. The range of differences were: -2.4 to 0.0 degrees for the thermocouples, -2.1 to 0.1 degrees for the RH probe PRTDs, and -6.6 to 6.7 percent for the RH sensors. Six Thermocouples indicated differences from the HMI31 greater than the combined accuracy. Seven PRTDs indicated differences from the HMI31 greater than the combined accuracy. Four RH sensors indicated differences from the HMI31 greater than the combined accuracy. The temperature differences (for both thermocouples and PRTDs) were nearly all of one sign; the HMI31 indicated the greater temperature, which may suggest a bias in the HMI31 temperature measurement, even though a dozen differences of +/- 0.2 degrees were measured. Four differences of zero and only one positive difference (out of 40) were measured. Thirteen of the 20 RH differences were positive (HMI31 indicating the lower RH), with the differences near the level of the combined accuracies being approximately 50% positive and 50% negative. It does not appear that the HMI31 has a RH bias. Plots of EBBR sensor/HMI31 differences as a function of time from the installation of the individual sensors (a range of 10 to 30 months in the field) shows no obvious pattern of sensor drift with time. This is encouraging. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/1995 | 1800 | 10/10/1995 | 2100 |
Subject: | SGP/EBBR/E15 - 3-month Check |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during this period, at least, do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/14/2002 | 1505 | 05/14/2002 | 1546 |
Subject: | SGP/EBBR/E15 - 6 Month Checks |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/30/2002 | 2000 | 04/30/2002 | 2031 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp30ebbrE18.b1, sgp15ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/16/2002 | 1430 | 05/16/2002 | 1501 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2001 | 0000 | 03/29/2002 | 1631 |
Subject: | SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Version 6 of the CR10 program produced noisy latent and sensible heat fluxes. That ended on March 29 after a recalibration unit was installed with version 8. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/2002 | 0030 | 04/17/2002 | 1401 |
05/01/2002 | 0300 | 05/28/2002 | 2031 |
11/14/2001 | 1945 | 11/14/2001 | 2001 |
11/25/2001 | 0215 | 11/25/2001 | 1901 |
11/28/2001 | 1145 | 11/28/2001 | 1501 |
11/29/2001 | 0745 | 11/29/2001 | 0931 |
11/29/2001 | 1415 | 11/30/2001 | 0431 |
12/02/2001 | 0145 | 12/02/2001 | 0201 |
12/03/2001 | 0045 | 12/03/2001 | 0101 |
12/24/2001 | 2015 | 12/24/2001 | 2031 |
12/25/2001 | 1915 | 12/25/2001 | 2031 |
01/18/2002 | 0115 | 01/18/2002 | 0201 |
01/24/2002 | 2115 | 01/24/2002 | 2131 |
01/28/2002 | 1345 | 01/28/2002 | 1401 |
02/13/2002 | 2215 | 02/14/2002 | 0801 |
02/25/2002 | 2345 | 02/26/2002 | 0001 |
03/14/2002 | 1515 | 03/29/2002 | 1831 |
04/18/2002 | 2230 | 04/30/2002 | 2031 |
01/22/2002 | 1615 | 01/22/2002 | 1631 |
Subject: | SGP/EBBR/E18 - AEM Hung |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The automatic exchange mechanism did not work properly for a number of time periods. The Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this condition. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/29/2002 | 1815 | 03/29/2002 | 2131 |
Subject: | SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout |
DataStreams: | sgp30ebbrE18.b1 |
Description: | The soil heat flows were incorrect while the EBBR changeout was being done. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/20/2002 | 0600 | 05/20/2002 | 2001 |
05/21/2002 | 0430 | 05/21/2002 | 1731 |
05/22/2002 | 1130 | 05/22/2002 | 1631 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Heat Flow 1 was incorrect during the indicated periods. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g2 + g3 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/09/2002 | 1900 | 05/14/2002 | 1846 |
Subject: | SGP/EBBR/E18 - Left Air Temperature Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The left air temperature was incorrect much of the time, causing the Bowen ratio, sensible heat flux, and latent heat flux to be incorrect also. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/17/2002 | 1430 | 04/17/2002 | 1431 |
Subject: | SGP/EBBR/E18 - Reference Temperature Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The reference temperature was incorrect during the checks of the left air temperature sensor, leading to all gradient measurements, Bowen ratio, sensible heat flux, latent heat flux, soil temperature, and soil moisture measurements being incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/08/2002 | 1630 | 02/21/2002 | 1601 |
Subject: | SGP/EBBR/E19 - Reprocess: Soil Heat Flow #3 Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil heat flow 3 was incorrect, with values too large positive and too small negative. Since the calibration in the program is the one supplied by the vendor, it appears that the calibration may be wrong. Average soil heat flow, sensible heat flux and latent heat flux can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g1 + g2 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2001 | 0000 | 06/30/2002 | 2356 |
Subject: | SGP/EBBR/E19 - Reprocess: Soil Temperature #3 Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil Temperature 3 was incorrect for the period indicated, causing average soil flow, latent heat flux, and sensible heat flux to be incorrect also. Average soil heat flow, sensible heat flux, and latent heat flux can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g1 + g2 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/08/2002 | 0430 | 04/08/2002 | 0431 |
05/19/2002 | 0400 | 05/19/2002 | 0401 |
Subject: | SGP/EBBR/E19 - Most Measurements Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00 |
Description: | Most measurements were incorrect for the indicated periods. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/27/2002 | 1500 | 06/27/2002 | 1501 |
04/18/2002 | 1730 | 04/18/2002 | 1731 |
05/05/2002 | 1400 | 05/05/2002 | 1401 |
Subject: | SGP/EBBR/E19 - All Measurements Zero |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
Description: | Measurements are often zero the first period after a CR10 restart. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/25/2002 | 2100 | 05/25/2002 | 2101 |
05/25/2002 | 2200 | 05/25/2002 | 2231 |
05/29/2002 | 1730 | 05/29/2002 | 1731 |
05/29/2002 | 2000 | 05/29/2002 | 2001 |
05/29/2002 | 2130 | 05/29/2002 | 2131 |
05/30/2002 | 1500 | 05/30/2002 | 1501 |
06/15/2002 | 1900 | 06/15/2002 | 1901 |
05/29/2002 | 1830 | 05/29/2002 | 1831 |
04/24/2002 | 1600 | 04/24/2002 | 2201 |
Subject: | SGP/EBBR/E19 - Pressure Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The pressure measurement was incorrect. This is used to determine the Bowen ratio, thereby affecting the sensible and latent heat fluxes also. |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/16/2002 | 2000 | 05/17/2002 | 0531 |
Subject: | SGP/EBBR/E19 - Measurements Incorrect After CR10 Replacement |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
Description: | Replacement of the CR10 datalogger caused most measurements to be incorrect, reason unknown. A different logger was installed at the end of the specified period and this resolved the problem. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/27/2002 | 0000 | 06/02/2002 | 1031 |
Subject: | SGP/EBBR/E19 - Low Battery Voltage |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.00, sgp5ebbrE19.b1 |
Description: | A battery voltage of less than 10.5 causes many of the sensors to produce incorrect measurements. The 15 minute data contains the battery voltage and should be used to determine whether the measurements are usable, based on battery voltage. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 06/18/2003 | 2359 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. |
Measurements: | sgp30ebbrE2.b1:
sgp30ebbrE26.b1:
sgp30ebbrE9.b1:
sgp30ebbrE22.b1:
sgp30ebbrE13.b1:
sgp30ebbrE7.b1:
sgp30ebbrE18.b1:
sgp30ebbrE12.b1:
sgp30ebbrE4.b1:
sgp30ebbrE15.b1:
sgp30ebbrE19.b1:
sgp30ebbrE20.b1:
sgp30ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/1993 | 1200 | 06/18/2003 | 1159 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. (NOTE: The actual begin date of some of these data streams is as early as 7/4/93. This DQR applies to all 30m EBBR data.) |
Measurements: | sgp30ebbrE26.b1:
sgp30ebbrE9.b1:
sgp30ebbrE7.b1:
sgp30ebbrE4.b1:
sgp30ebbrE12.b1:
sgp30ebbrE15.b1:
sgp30ebbrE22.b1:
sgp30ebbrE13.b1:
sgp30ebbrE8.b1:
sgp30ebbrE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2002 | 2215 | 11/25/2002 | 2245 |
Subject: | SGP/EBBR/E18 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2002 | 1600 | 11/14/2002 | 1630 |
Subject: | SGP/EBBR/E19 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2002 | 1710 | 11/12/2002 | 1740 |
Subject: | SGP/EBBR/E15 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/01/2002 | 2100 | 11/12/2002 | 2130 |
07/08/2002 | 1800 | 07/19/2002 | 1430 |
08/20/2002 | 2100 | 08/26/2002 | 0300 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #1 measurements were 2X to offscale high during these periods. See below for a work-around. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/2002 | 2000 | 07/26/2002 | 2030 |
07/27/2002 | 0300 | 07/30/2002 | 2000 |
08/03/2002 | 0130 | 08/06/2002 | 2030 |
08/07/2002 | 0200 | 08/09/2002 | 1900 |
08/12/2002 | 0130 | 08/17/2002 | 2030 |
08/17/2002 | 2130 | 08/19/2002 | 1830 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #4 measurements were 2X or offscale high during this period when compared with the other soil heat flow measurements. See below for a work-around. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2002 | 2200 | 11/12/2002 | 2229 |
Subject: | SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 11/12/02 occurred after replacement of soil heat flow #1. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2002 | 2230 | 11/12/2002 | 2259 |
Subject: | SGP/EBBR/E18 - Data Incorrect After Logger Restart |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Because soil temperature measurements were not available from the beginning of the half hour, the change in soil energy storage could not be calculated and thus is incorrect. There is no fix to this problem. Average Soil Heat Flow, Sensible Heat Flux (h), and Latent Heat Flux (e) can not be calculated using the available, remaining measurements. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2002 | 1400 | 10/15/2002 | 2030 |
Subject: | SGP/EBBR/E18 - Water in Net Radiometer Dome |
DataStreams: | sgp30ebbrE18.b1 |
Description: | The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2001 | 1920 | 07/09/2002 | 1522 |
Subject: | SGP/EBBR/E15 - REPROCESS: Soil Moisture #1 Offset |
DataStreams: | sgp30ebbrE15.b1 |
Description: | The wrong offset (9.5264) was used in the calibration coefficients for Soil Moisture Probe #1. The correct offset is 0.95264. Sensible and Latent Heat Flux measurements are not significantly affected. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/22/2002 | 1630 | 07/22/2002 | 1659 |
Subject: | SGP/EBBR/E15 - Data Mostly Zero Following Logger Restart |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 07/22/02 occurred after a pressure sensor replacement. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/10/2002 | 1300 | 12/23/2002 | 1600 |
Subject: | SGP/EBBR/E15 - Pressure Low |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The pressure measurements were too low during this period, as much as 40 mb too low. This occurred after a restart of the EBBR CR10 datalogger, for unknown reasons. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/08/2002 | 1600 | 04/18/2002 | 1700 |
Subject: | SGP/EBBR/E19 - REPROCESS: Soil Heat Flow #3 Incorrect Calibration |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil Heat Flow #3 was incorrect during these periods. To use the measurements, multiply Soil Heat Flow #3 by 0.726. See below for a work-around. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/25/2002 | 2100 | 09/05/2002 | 1430 |
Subject: | SGP/EBBR/E19 - Water in Net Radiometer Dome |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation. |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/2002 | 1600 | 07/11/2002 | 1629 |
Subject: | SGP/EBBR/E19 - Incorrect data after power interruption |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Most measurements are suspect after a power outage, caused by replacement of the solar panel regulator. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/2002 | 1500 | 07/11/2002 | 1529 |
Subject: | SGP/EBBR/E19 - Most Measurements Zero following Restart |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Most of the measurements were zero, which normally happens after a datalogger restart. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/24/2002 | 1430 | 07/24/2002 | 1500 |
Subject: | SGP/EBBR/E19 - REPROCESS: Soil Temperature #3 Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil Temperature #3 was incorrect while electronic connections were being checked. The indicated measurements that are calculated using Soil Temperature #3 are also incorrect. See a work-around below. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/25/2002 | 0930 | 07/25/2002 | 1300 |
07/26/2002 | 0900 | 07/26/2002 | 0900 |
07/26/2002 | 1130 | 07/26/2002 | 1130 |
07/27/2002 | 0630 | 07/27/2002 | 0830 |
07/28/2002 | 0300 | 07/28/2002 | 0630 |
07/28/2002 | 0930 | 07/28/2002 | 1230 |
07/29/2002 | 0800 | 07/29/2002 | 0830 |
08/08/2002 | 1600 | 08/08/2002 | 1600 |
08/09/2002 | 0230 | 08/09/2002 | 0300 |
08/09/2002 | 0730 | 08/09/2002 | 0730 |
08/09/2002 | 0930 | 08/09/2002 | 1100 |
08/09/2002 | 1400 | 08/09/2002 | 1600 |
08/10/2002 | 0130 | 08/10/2002 | 0230 |
08/10/2002 | 1200 | 08/10/2002 | 1330 |
08/13/2002 | 0600 | 08/13/2002 | 0700 |
08/13/2002 | 2030 | 08/13/2002 | 2030 |
08/13/2002 | 2130 | 08/14/2002 | 0330 |
08/14/2002 | 1300 | 08/14/2002 | 1330 |
08/21/2002 | 1630 | 08/22/2002 | 1430 |
Subject: | SGP/EBBR/E19 - REPROCESS: Soil Heat Flow #1 Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil Heat Flow #1 was incorrect during these periods. See below for a work-around. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/17/2002 | 1430 | 10/31/2002 | 1600 |
Subject: | SGP/EBBR/E19 - Pressure Low |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The barometric pressure sensor read about 10 mb low during this period because a lead from the sensor was loose or disconnected. The error does not affect any other measurements. |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/19/2002 | 1430 | 07/20/2002 | 2000 |
07/26/2002 | 2030 | 07/27/2002 | 0300 |
07/30/2002 | 2000 | 08/03/2002 | 0130 |
08/06/2002 | 2030 | 08/07/2002 | 0200 |
08/09/2002 | 1900 | 08/12/2002 | 0130 |
08/17/2002 | 2030 | 08/17/2002 | 2130 |
08/19/2002 | 1830 | 08/20/2002 | 2100 |
Subject: | SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #1 and #4 measurements were 2X to offscale high during these periods. See suggestions for a work-around. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/14/2002 | 1430 | 01/09/2003 | 1600 |
Subject: | SGP/EBBR/E19 - Soil Temperatures #2 and #3 Intermittently Bad |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Soil Temperatures #2 and #3 were intermittently incorrect. #3 appeared to be okay after the J-panel was replaced. #2 continues to be flaky, suggesting that the sensor itself has a problem. A DQPR has been submitted to replace #2. The indicated measurements that are calculated using soil temperature are also suspect. However, the intermittent problems normally occurred during night times and were fairly small in magnitude, thereby having little effect on the sensible and latent heat fluxes. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1700 | 01/09/2003 | 1729 |
Subject: | SGP/EBBR/E19 - Measurements zero following logger restart |
DataStreams: | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 01/09/03 occurred after J-panel replacements. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1730 | 01/09/2003 | 1759 |
Subject: | SGP/EBBR/E19 - Change of Energy Storage Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Because soil temperature measurements were not available from the beginning of the half hour, the change in soil energy storage could not be calculated and thus is incorrect. There is no fix to this problem. Average Soil Heat Flow, Sensible Heat Flux (h), and Latent Heat Flux (e) can not be calculated using the available, remaining measurements. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1630 | 01/09/2003 | 1700 |
Subject: | SGP/EBBR/E19 - Soil Temperature #2 Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Soil Temperature #2 was incorrect during J-panel replacements. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1700 | 01/09/2003 | 1700 |
02/06/2003 | 1730 | 02/06/2003 | 1730 |
04/03/2003 | 1830 | 04/03/2003 | 1830 |
Subject: | SGP/EBBR/E19 - All Data Zeros |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | All data (5, 15, and 30 minute) was zero after replacement of sensors and restart of the CR10. This is a common occurrence. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1730 | 01/09/2003 | 1730 |
Subject: | SGP/EBBR/E19 - Several Soil Measurements Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | During replacement of a J-panel, several soil measurements were incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2003 | 1700 | 01/26/2003 | 1700 |
01/26/2003 | 1800 | 01/26/2003 | 1800 |
Subject: | SGP/EBBR/E19 -Several Soil Measurements Were Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | Several soil measurements were incorrect during replacement of soil temperature probe #2. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/28/2003 | 1330 | 03/02/2003 | 0530 |
03/02/2003 | 1730 | 03/03/2003 | 0030 |
Subject: | SGP/EBBR/E19 - AEM Hung in home30 position |
DataStreams: | sgp30ebbrE19.b1 |
Description: | The automatic exchange mechanism (AEM) hung in the home30 position, resulting in sensible and latent heat fluxes being incorrect. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/09/2003 | 1730 | 04/03/2003 | 1900 |
Subject: | SGP/EBBR/E19 - Soil Heat Flow #3 Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | Soil Heat Flow #3 was a flat -24 W/m2 for most of this period. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/03/2003 | 1900 | 04/03/2003 | 1900 |
Subject: | SGP/EBBR/E19 - Soil Heat Flow#1 Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | Soil Heat Flow #1 was incorrect during replacement of some other sensors. |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/15/2003 | 1600 | 05/15/2003 | 1700 |
Subject: | SGP/EBBR/E19 - Many Measurements Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect during replacement of a multiplexer. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2003 | 2145 | 04/01/2003 | 2200 |
Subject: | SGP/EBBR/E18 - AEM Hung |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The AEM was hung inbetween home positions, causing many measurements to be incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/29/2003 | 1540 | 04/29/2003 | 1655 |
Subject: | SGP/EBBR/E15 - 6 Month Checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/15/2003 | 2120 | 04/15/2003 | 2215 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2003 | 1440 | 05/01/2003 | 1515 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2001 | 1930 | 08/05/2003 | 1630 |
Subject: | SGP/EBBR/E15 - Wind Direction 10 Degrees Low |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind direction at E15 EBBR was 10 degrees low for the period (since installation of the EBBR unit on 10/11/01). The wind direction sensor was apparently aligned to magnetic north instead of true north at installation. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/19/2003 | 1900 | 06/19/2003 | 1900 |
Subject: | SGP/EBBR/E15 - Top Humidity reported as zero in 30 minute data. |
DataStreams: | sgp30ebbrE15.b1 |
Description: | The top relative humidity was reported as zero in the 30 minute data. This is an apparent misreporting by the CR10 datalogger or is caused by a communications problem in accessing the data from the datalogger. It is very infrequently seen; it's actual cause is unknown. No other data was affected. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/30/2003 | 1400 | 09/04/2003 | 1445 |
Subject: | SGP/EBBR/E19 - Water in Net Radiometer; Surface Fluxes are Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/30/2003 | 1500 | 09/02/2003 | 2100 |
Subject: | SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/17/2003 | 1830 | 09/17/2003 | 2000 |
09/17/2003 | 2230 | 09/18/2003 | 0100 |
Subject: | SGP/EBBR/E19 - Tair Right Offscale |
DataStreams: | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | The right air temperature data were going offscale. This affected the calculation of sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2003 | 2230 | 10/12/2003 | 2330 |
Subject: | SGP/EBBR/E15 - Reference Temperature Failed |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The reference temperature failed, making air temperatures, e, h, and Bowen ratio incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2003 | 1630 | 09/30/2003 | 1600 |
Subject: | SGP/EBBR/E15 - Water In Net Radiometer, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2003 | 2230 | 10/12/2003 | 2359 |
Subject: | SGP/EBBR/E15 - Soil Temperature #5 Incorrect, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil Temperature #5 was incorrect. This affected many measurements, including sensible and latent heat fluxes. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 10/14/2003 | 1830 |
Subject: | SGP/EBBR/E15 - Soil Temperature #5 Incorrect, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil Temperature #5 was incorrect. This affected many measurements, including sensible and latent heat fluxes. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/05/2003 | 1400 | 11/11/2003 | 1800 |
Subject: | SGP/EBBR/E15 - AEM Hung Between Home Positions, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The AEM was hung inbetween home positions. Therefore the sensible and latent heat fluxes are also incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/03/2003 | 2000 | 11/13/2003 | 1615 |
Subject: | SGP/EBBR/E19 - Battery Voltage Too Low, Most Measurements Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Battery voltage dropped below levels required to sustain the production of valid data. The AC charger unit had failed. This prevented charging of the battery during the night and prevented the solar panel regulator from properly charging the battery during the day. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2003 | 2115 | 11/26/2003 | 1600 |
Subject: | SGP/EBBR/E19 - AEM Stuck In One Position, Surface Fluxes Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | The AEM home 15 and 30 outputs were both 40 mv because the AEM was not exchanging. Sensible and Latent Heat Fluxes are therefore incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/2003 | 1505 | 10/10/2003 | 1755 |
Subject: | SGP/EBBR/E19 - Data Missing During Recalibration Changeout |
DataStreams: | sgp15ebbrE19.b1, sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgpebbrE19.00, sgpebbrE19.01 |
Description: | Data was missing during the recalibration changeout. |
Measurements: | sgpebbrE19.01:
sgpebbrE19.00:
sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
sgp30baebbrE19.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/14/2003 | 1700 | 10/14/2003 | 1730 |
Subject: | SGP/EBBR/E15 - 6 Month Checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2003 | 2225 | 10/28/2003 | 2315 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/2003 | 1530 | 10/10/2003 | 1600 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/16/2003 | 1500 | 10/16/2003 | 1530 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/2003 | 1800 | 10/10/2003 | 1800 |
Subject: | SGP/EBBR/E19 - Data All Zeros |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The time period after restart of the datalogger produced all zero data. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/13/2003 | 1500 | 12/15/2003 | 0000 |
Subject: | SGP/EBBR/E15 - Net Radiometer Iced Over During Storm |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The net radiometer was covered with ice from a storm. Net radiation values are incorrect, and are sometimes even negative during the daytime. Sensible and latent heat fluxes are therefore incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/12/2003 | 1955 | 12/13/2003 | 1940 |
Subject: | SGP/EBBR/E15 - Wind Speed Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind speed sensor was frozen stopped by ice from a storm. The wind speed and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/12/2003 | 1825 | 12/12/2003 | 2000 |
Subject: | SGP/EBBR/E19 - Wind Speed Sensor Frozen Stopped by Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. It is not known how long this condition existed, as data is missing for more than 10 days after the end of the stated period. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/25/2003 | 2150 | 01/20/2004 | 2030 |
Subject: | SGP/EBBR/E15 - Wind Direction About 130 Degrees Low |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The EBBR wind direction sensor developed an approximately -130 degree offset. The pin holding the vane to the shaft had fallen out. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2004 | 1915 | 04/13/2004 | 2045 |
Subject: | SGP/EBBR/E18 - AEM Sitting At Home 15 Position |
DataStreams: | sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
Description: | After replacement of the AEM on 1/26/04, it exchanged briefly, then sat at the home 15 position until another replacement was available. |
Measurements: | sgp15ebbrE18.b1:
sgp30baebbrE18.c1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/2004 | 1600 | 01/22/2004 | 1530 |
Subject: | SGP/EBBR/E19 - Low Battery Voltage Caused Incorrect Data |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Battery voltage less than 10.5 V caused much data to be questionable or incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/26/2004 | 0000 | 03/02/2004 | 1705 |
Subject: | SGP/EBBR/E15 - Net Radiometer not level |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The EBBR net radiometer at E15 was suspected to be off of level because the daily peak net radiation was recorded later than it was recorded by the SIRS. Site Ops found the EBBR net radiometer at E15 was significantly off of level (1/2 bubble tipped to the north). Adjustment of the level improved the comparison of peak time with the co-located SIRS. There was no significant effect on the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2004 | 1810 | 02/02/2004 | 2040 |
02/04/2004 | 2240 | 02/05/2004 | 1840 |
02/09/2004 | 1020 | 02/09/2004 | 1430 |
Subject: | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2004 | 0140 | 01/28/2004 | 0305 |
02/05/2004 | 0145 | 02/05/2004 | 0520 |
Subject: | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2004 | 0140 | 01/28/2004 | 0305 |
Subject: | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2004 | 2120 | 02/02/2004 | 1910 |
Subject: | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/05/2004 | 1700 | 04/15/2004 | 1530 |
Subject: | SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient |
DataStreams: | sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiometer coefficient installed on 2/5/04 for nighttime (negative voltage calibration) was incorrect. Negative net radiations during the subject period can be multiplied by 0.9419 to get corrected net radiation measurements. The sensible (H) and latent heat (LE) fluxes (which are very small at night anyway) can be recalculated using the following equations (where B is Bowen ratio, Rn is corrected net radiation, and G is soil heat flow): LE = -(Rn + G)/(B + 1) H = -(Rn + G + LE) |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
sgp30baebbrE19.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/19/2004 | 0500 | 06/13/2004 | 1700 |
Subject: | SGP/EBBR/E18 - Pressure Low |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Pressure readings suddenly dropped to unrealistic levels. Sensible Heat Flux was underestimated and Latent Heat Flux was overestimated because of this problem. |
Measurements: | sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2004 | 2130 | 04/27/2004 | 1630 |
Subject: | SGP/EBBR/E15 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30baebbrE15.c1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The cups were broken off of the wind speed sensor by hail on 4/23/04. The cups were replaced on 4/27/04. Wind speed measurements were near zero and incorrect during the indicated period. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp30baebbrE15.c1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/30/1997 | 0000 | 05/06/2003 | 2359 |
Subject: | SGP/EBBR/E19 - Metadata errors |
DataStreams: | sgp15ebbrE19.b1, sgp30baebbrE19.c1, sgp30ebbrE19.b1 |
Description: | The latitude, longitude and altitude of the El Reno (E19) site were incorrectly entered into the ARM database. The correct location of the EBBR.E19 instrument is: Lat: 35.557N Lon: 98.017W Alt: 421m |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
sgp30baebbrE19.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 05/06/2003 | 2359 |
Subject: | SGP/EBBR/E19 - Metadata errors |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The latitude, longitude and altitude of the El Reno (E19) site were incorrectly entered into the ARM database. The correct location of the EBBR.E19 instrument is: Lat: 35.557N Lon: 98.017W Alt: 421m |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/29/2004 | 2215 | 06/10/2004 | 1510 |
Subject: | SGP/EBBR/E19 - AEM Hung Inbetween Home Positions |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The AEM hung inbetween home positions, producing a home signal of zero. Sensible and latent heat fluxes during this period are incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/28/2004 | 1300 | 07/28/2004 | 1500 |
Subject: | SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil moisture #1 and soil temperature #1 occasionally spiked at the same time. Little sensible and latent heat flux data were affected. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2004 | 1830 | 07/06/2004 | 2100 |
Subject: | SGP/EBBR/E18 - Soil Temperature #2 Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Temperature #2 was incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux are incorrect, as a result. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/2001 | 1500 | 09/28/2004 | 1509 |
Subject: | SGP/EBBR/E15 - Soil Moisture Coefficients Incorrect |
DataStreams: | sgp30ebbrE15.b1 |
Description: | The soil Moisture coefficients used for E15 were incorrect from the time of installation of the system in program version 8. On 9 July 02 parameter 4 (an offset value) of program step 136 was changed from 9.5264 to the correct value 0.95264 (this error had been made by the vendor). The error masked the real problem (wrong soil type) and after 9 July 02 resulted in very low soil moisture measurements. The coefficients used were for coarse sand. On 28 Sep 04 I visited the E15 site and found the soil type a fine sandy clay or fine sandy loam. I changed the coefficients at 1509 GMT to those for a very fine sandy loam; this produced reasonable soil moistures for the soil type. The old coefficients in parameters 4 through 9 for step 136 of the program were: 0.95264, -6.7859, 36.224, -58.619, 25.073, 4.2278 The new coefficients are: 10.241, -27.943, 49.523, -12.648, -52.643, 38.054 |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/26/2004 | 1630 | 10/26/2004 | 1700 |
Subject: | SGP/EBBR/E15 - 6 Month Checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/28/2004 | 2230 | 09/28/2004 | 2300 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2004 | 1430 | 10/28/2004 | 1500 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/2005 | 1010 | 01/05/2005 | 0200 |
Subject: | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 1810 | 01/06/2005 | 2045 |
Subject: | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0655 | 01/07/2005 | 1545 |
Subject: | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/2005 | 1605 | 01/05/2005 | 0200 |
Subject: | SGP/EBBR/E15 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/2005 | 0010 | 01/07/2005 | 1550 |
Subject: | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp15ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 1115 | 01/06/2005 | 2055 |
Subject: | SGP/EBBR/E19 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/2005 | 0030 | 01/12/2005 | 1545 |
Subject: | SGP/EBBR/E15 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/2005 | 0030 | 01/12/2005 | 0930 |
Subject: | SGP/EBBR/E15 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/29/2005 | 0930 | 01/29/2005 | 1300 |
Subject: | SGP/EBBR/E19 - Wind Speed Constant |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Wind Speed was constant at 5 m/s during this period; the reason is unknown. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/08/2004 | 1830 | 03/01/2005 | 1630 |
Subject: | SGP/EBBR/E15 - Soil Heat Flows Undermeasured, and Latent and Sensible Heat Fluxes |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Use of the wrong soil type soil moisture coefficients caused soil moisture to be greatly undermeasured (a typical wrong value was 4% instead of the correct 17%), soil heat flows to be undermeasured, and sensible and latent heat fluxes to be overestimated. Soil heat flow plate outputs were undermeasured by up to 10%, change of energy storage was undermeasured by up to 80% and total soil heat flow was undermeasured by up to 50% as a result. This would result in approximately a 5% overestimation of both sensible and latent heat fluxes. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/05/2004 | 1700 | 03/05/2005 | 1730 |
Subject: | SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The calibration for negative net radiation was incorrectly entered in the datalogger program. |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/13/2005 | 0800 | 05/24/2005 | 1700 |
Subject: | SGP/EBBR/E15 - Net Radiation Too Large - Water in Bottom |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Water in the bottom dome of the net radiometer made the measurements incorrectly large. Sensible and latent heat fluxes were therefore incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2005 | 2300 | 05/12/2005 | 1445 |
Subject: | SGP/EBBR/E19 - Net Radiation Incorrect - Cable Chewed by Rodents |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiation measurement was incorrect after the net radiometer cable was chewed by rodents. Sensible and latent heat fluxes were therefore incorrect. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/29/2005 | 1900 |
Subject: | SGP/EBBR/E15 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Effective 20050329.1900, the EBBR.E15 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050329, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE15.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE15.a1). |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/30/2005 | 0000 |
Subject: | SGP/EBBR/E18 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Effective 20050330.0000, the EBBR.E18 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050330, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE18.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE18.a1). |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/31/2005 | 1600 |
Subject: | SGP/EBBR/E19 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Effective 20050331.1600, the EBBR.E19 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050331, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE19.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE19.a1). |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/27/2005 | 0730 | 08/03/2005 | 2100 |
Subject: | SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The net radiometer top dome was broken and water got inside, making the net radiation, and sensible and latent heat flux measurements incorrect. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2005 | 1800 | 03/29/2005 | 1900 |
Subject: | SGP/EBBR/E15 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE15.b1 |
Description: | A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2005 | 2330 | 03/30/2005 | 0000 |
Subject: | SGP/EBBR/E18 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2005 | 1730 | 03/31/2005 | 1600 |
Subject: | SGP/EBBR/E19 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/15/2005 | 2130 | 07/19/2005 | 1700 |
Subject: | SGP/EBBR/E15 - Soil Set #5 Temperature, Moisture, and Heat Flow Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Rodents chewed the cables on all three soil set #5 sensors, making the measurements incorrect. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E15 - metadata corrections |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E15 data collected by ARM back to the installation of the instrument in September 1992. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E18 - metadata corrections |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E18 data collected by ARM back to the installation of the instrument in July 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E19 - metadata corrections |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E19 data collected by ARM back to the beginning of the data set in May 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/24/2005 | 0600 | 10/25/2005 | 0100 |
10/31/2005 | 1030 | 12/20/2005 | 1940 |
Subject: | SGP/EBBR/E19 - Net Radiation, Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiometer cable was chewed by an animal. Net Radiation, Sensible Heat Flux, and Latent Heat Flux were incorrect during the stated periods. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/13/2005 | 0000 | 01/19/2006 | 1630 |
Subject: | SGP/EBBR/E19 - Incorrect Sensible and Latent Heat Fluxes |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The gradient measurements and latent and sensible heat fluxes were incorrect because the AEM was not exchanging. The problem was fixed by replacing the AEM. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/30/2005 | 0000 | 11/08/2005 | 1815 |
Subject: | SGP/EBBR/E15 - Net Radiation, Sensible and Latent Heat Fluxes Incorrect. |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The top dome of the net radiometer was broken, resulting in net radiations that were too small, and thus sensible and latent heat fluxes that were too small. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/10/2006 | 1330 | 01/17/2006 | 1730 |
Subject: | SGP/EBBR/E15 - Incorrect Sensible and Latent Heat Fluxes |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Incorrect gradient measurements and sensible and latent heat fluxes resulted from the AEM not exchanging. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/27/2005 | 0000 | 12/18/2005 | 1200 |
Subject: | SGP/EBBR/E15 - Reprocess: Sensible and Latent Heat Fluxes, Soil Set #2 Sometimes Incorrect |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Spikes in soil set #2 sometimes caused sensible and latent heat fluxes to be incorrect. There is no electronic connection between the soil set #2 sensors, so it is suspected that there was a problem in the soil set #2 cable bundle. A power outage ensued, after which the soil set #2 problem did not re-occur. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/22/2006 | 1300 | 02/22/2006 | 1530 |
Subject: | SGP/EBBR/E15 - Wind Speed Sensor Frozen Stopped |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Freezing rain froze the wind speed sensor to a stopped condition during the period. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/22/2006 | 0000 | 01/26/2006 | 0530 |
02/18/2006 | 0400 | 02/18/2006 | 2030 |
02/20/2006 | 0200 | 02/24/2006 | 1630 |
03/31/2006 | 0530 | 03/31/2006 | 0900 |
Subject: | SGP/EBBR/E18 - Wind Speed Zero |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Wind Speed was zero, presumably because the sensor was frozen stopped during freezing rain. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2006 | 0430 | 06/02/2006 | 2130 |
Subject: | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The net radiometer dome was cracked and water had gotten in, resulting in incorrect net radiation measurements and therefore incorrect sensible and latent heat flux measurements. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/30/2006 | 2200 | 11/07/2006 | 2130 |
Subject: | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Sensible and latent heat fluxes were incorrect during this period because the AEM was not exchanging. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2006 | 1500 | 10/12/2006 | 1630 |
Subject: | SGP/EBBR/E19 - Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ebbrE19.b1 |
Description: | The sensible and latent heat fluxes were incorrect when the top and bottom air temperatures were incorrect. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/10/1997 | 2000 | 10/12/2003 | 2330 |
Subject: | SGP/EBBR/E18 - Wind Direction Dependency of Surface Fluxes and General Data Quality |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Beginning in FY2006, Data Quality Reports are not written for missing data or for situations when qc flags clearly show that the data is incorrect (this is true for most of the conditions listed below). DQRs are written for periods when data is incorrect, when the situation is not represented by qc flags in the data, and it's not obvious that the data should have been flagged as incorrect. The EBBR data is only useful for particular wind directions at each Extended Facility. Please use the following resources to help in interpreting the EBBR data. 1) qc flags in the EBBR data. 2) Instrument Mentor Monthly Summaries (IMMS) at http://www.db.arm.gov/IMMS/ 3) SGP EF Surface Conditions Observations (EFSCO) at http://198.124.96.210:591/sfc_cond1/default.htm 4) Surface fluxes are valid only for the following wind directions (in degrees): 138-325 Note that there are wind directions at most sites for which the fetch is insufficient and therefore EBBR data is invalid. Appropriate fetch was determined from a 1/40 measurement height to fetch ratio, resulting in a required minimum fetch of 120 m. Particular attention should be paid to the limited valid wind directions for the Central Facility EBBR. The surface vegetation type for the EBBRs is grazed or ungrazed grassland (refer to the EFSCO for state). 5) Some conditions that commonly cause the EBBR primary measurements to be incorrect or missing follow: a) Sensible and latent heat fluxes are not accurate during times when the Automatic Exchange Mechanism (AEM) is not functioning properly. The AEM switches the gradient measuring instrumentation between the top and bottom positions every 15 minutes; this reduces the effects of instrument offsets. Sometimes the AEM does not reach it's full extent of travel, resulting in the home signal being zero. b) Sensible and latent heat fluxes are sometimes incorrect when surface soil heat flow is out of range, as seen in the average soil heat flux (ave_shf). c) Very light winds may be seen at nights for brief periods. Wind direction flops around a lot during low wind conditions (< 1.5 m/s) and is often unreliable during those periods. d) Missing data periods occur at times; this is usually a site data system collection/communication problem; it can also occur during replacement of the system with a newly calibrated unit. Missing data is sometimes filled in later from manual or automatic re-collection of the data. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/30/1997 | 1000 | 10/12/2003 | 2330 |
Subject: | SGP/EBBR/E19 - Wind Direction Dependency of Surface Fluxes and General Data Quality |
DataStreams: | sgp30ebbrE19.b1 |
Description: | Beginning in FY2006, Data Quality Reports are not written for missing data or for situations when qc flags clearly show that the data is incorrect (this is true for most of the conditions listed below). DQRs are written for periods when data is incorrect, when the situation is not represented by qc flags in the data, and it's not obvious that the data should have been flagged as incorrect. The EBBR data is only useful for particular wind directions at each Extended Facility. Please use the following resources to help in interpreting the EBBR data. 1) qc flags in the EBBR data. 2) Instrument Mentor Monthly Summaries (IMMS) at http://www.db.arm.gov/IMMS/ 3) SGP EF Surface Conditions Observations (EFSCO) at http://198.124.96.210:591/sfc_cond1/default.htm 4) Surface fluxes are valid only for the following wind directions (in degrees): 0-133, 151-360 Note that there are wind directions at most sites for which the fetch is insufficient and therefore EBBR data is invalid. Appropriate fetch was determined from a 1/40 measurement height to fetch ratio, resulting in a required minimum fetch of 120 m. Particular attention should be paid to the limited valid wind directions for the Central Facility EBBR. The surface vegetation type for the EBBRs is grazed or ungrazed grassland (refer to the EFSCO for state). 5) Some conditions that commonly cause the EBBR primary measurements to be incorrect or missing follow: a) Sensible and latent heat fluxes are not accurate during times when the Automatic Exchange Mechanism (AEM) is not functioning properly. The AEM switches the gradient measuring instrumentation between the top and bottom positions every 15 minutes; this reduces the effects of instrument offsets. Sometimes the AEM does not reach it's full extent of travel, resulting in the home signal being zero. b) Sensible and latent heat fluxes are sometimes incorrect when surface soil heat flow is out of range, as seen in the average soil heat flux (ave_shf). c) Very light winds may be seen at nights for brief periods. Wind direction flops around a lot during low wind conditions (< 1.5 m/s) and is often unreliable during those periods. d) Missing data periods occur at times; this is usually a site data system collection/communication problem; it can also occur during replacement of the system with a newly calibrated unit. Missing data is sometimes filled in later from manual or automatic re-collection of the data. |
Measurements: | sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/1993 | 1100 | 10/12/2003 | 2330 |
Subject: | SGP/EBBR/E15 - Wind Direction Dependency of Surface Fluxes and General Data Quality |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Beginning in FY2006, Data Quality Reports are not written for missing data or for situations when qc flags clearly show that the data is incorrect (this is true for most of the conditions listed below). DQRs are written for periods when data is incorrect, when the situation is not represented by qc flags in the data, and it's not obvious that the data should have been flagged as incorrect. The EBBR data is only useful for particular wind directions at each Extended Facility. Please use the following resources to help in interpreting the EBBR data. 1) qc flags in the EBBR data. 2) Instrument Mentor Monthly Summaries (IMMS) at http://www.db.arm.gov/IMMS/ 3) SGP EF Surface Conditions Observations (EFSCO) at http://198.124.96.210:591/sfc_cond1/default.htm 4) Surface fluxes are valid only for the following wind directions (in degrees): 133-360 Note that there are wind directions at most sites for which the fetch is insufficient and therefore EBBR data is invalid. Appropriate fetch was determined from a 1/40 measurement height to fetch ratio, resulting in a required minimum fetch of 120 m. Particular attention should be paid to the limited valid wind directions for the Central Facility EBBR. The surface vegetation type for the EBBRs is grazed or ungrazed grassland (refer to the EFSCO for state). 5) Some conditions that commonly cause the EBBR primary measurements to be incorrect or missing follow: a) Sensible and latent heat fluxes are not accurate during times when the Automatic Exchange Mechanism (AEM) is not functioning properly. The AEM switches the gradient measuring instrumentation between the top and bottom positions every 15 minutes; this reduces the effects of instrument offsets. Sometimes the AEM does not reach it's full extent of travel, resulting in the home signal being zero. b) Sensible and latent heat fluxes are sometimes incorrect when surface soil heat flow is out of range, as seen in the average soil heat flux (ave_shf). c) Very light winds may be seen at nights for brief periods. Wind direction flops around a lot during low wind conditions (< 1.5 m/s) and is often unreliable during those periods. d) Missing data periods occur at times; this is usually a site data system collection/communication problem; it can also occur during replacement of the system with a newly calibrated unit. Missing data is sometimes filled in later from manual or automatic re-collection of the data. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/15/2008 | 0030 | 05/06/2008 | 2110 |
Subject: | SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | Soil heat flow #4 was sometimes lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values is not clear, but the values are not reasonable for the vegetation type at EF18. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2008 | 0600 | 05/07/2008 | 0900 |
05/07/2008 | 1530 | 05/07/2008 | 2130 |
05/09/2008 | 1330 | 05/09/2008 | 1330 |
Subject: | SGP/EBBR/E19 - Sensible and latent heat flux and net radiation incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Net radiation was too large, resulting in sensible and latent heat fluxes being too large. The cause of the problem is unknown. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/11/2008 | 1500 | 06/20/2008 | 1500 |
Subject: | SGP/EBBR/E15 - Water in dome |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | There was water in the bottom dome of the net radiometer. Net radiation, and sensible and latent heat fluxes were incorrect during the period. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2008 | 0030 | 06/15/2008 | 1500 |
Subject: | SGP/EBBR/E15 - Soil Heat Flow #4 Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil heat flux #4 produced too large a soil heat flow at times, resulting in it exceeding the qc check limit and causing sensible and latent heat fluxes to be incorrect. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/06/2008 | 1215 | 06/17/2008 | 2120 |
Subject: | SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | Soil heat flow #4 was replaced at the beginning of this period. However, the soil heat flow measurements from that sensor were sometimes still lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values could not be determined, but the values are not reasonable for the vegetation type at EF18. To remedy the situation, the soil heat flow sensor calibration was changed so that the sensor provided measurements that resembled the other four soil heat flow sensor measurements. Soil heat flow measurements have been reasonable since the calibration change. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 1830 | 01/28/2009 | 1935 |
Subject: | SGP/EBBR/E15 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind speed sensor was frozen stopped by freezing rain. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/27/2009 | 1930 | 02/25/2009 | 1830 |
Subject: | SGP/EBBR/E15 - Soil Moisture and Soil Temp #1 Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil Moisture #1 and Soil Temperature #1 were incorrect during this period. This situation did not affect the sensible and latent heat fluxes (EBBR programming used only the 4 good soil measurements to determine soil surface heat flux). |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 2150 | 01/29/2009 | 1550 |
Subject: | SGP/EBBR/E18 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The wind speed sensor was frozen stopped and thus wind speed was incorrect during this period. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 1835 | 01/28/2009 | 1825 |
Subject: | SGP/EBBR/E19 - Wind Speed Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Wind Speed was frozen stopped by ice and was incorrect during this period. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/29/2010 | 1130 | 01/31/2010 | 2200 |
Subject: | SGP/EBBR/E19 - Wind direction sensor frozen near north |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The wind direction sensor was frozen in place near north by freezing rain. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2010 | 1630 | 02/02/2010 | 1530 |
Subject: | SGP/EBBR/E19 - Wind speed sensor frozen stopped |
DataStreams: | sgp5ebbrE19.b1, sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | The wind speed sensor was frozen stopped by freezing rain. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/19/2010 | 1930 | 05/05/2010 | 1745 |
Subject: | SGP/EBBR/E15 - Sensible and Latent Heat Fluxes Low (Net Radiation too low) |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Sensible and Latent Heat Fluxes were measured as being low because of damage to the net radiometer. The Sensible and Latent Heat fluxes can be approximated by taking the ratio of the daytime SIRS net radiation to EBBR net radiation, and then multiplying the Sensible and Latent Heat Fluxes by that ratio. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/24/2010 | 1630 | 10/05/2010 | 1600 |
Subject: | SGP/EBBR/E15 - Sensible and Latent Heat Flux Suspect - Soil Heat Flow 5 Problem |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil Heat Flow sensor 5 was offscale at times, causing sensible and latent heat fluxes to be incorrect during those times. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2011 | 1030 | 09/19/2011 | 1700 |
Subject: | SGP/EBBR/E19 - Nighttime data missing |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Battery supply voltage was insufficient at night to power the system resulting in missing data. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/28/2011 | 2300 | 01/24/2012 | 1730 |
Subject: | SGP/EBBR/E15 - Soil heat flow #1 failure |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil heat flow 1 sensor wires chewed by rodents. Values less than the accepted minimum. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/28/2011 | 1400 | 02/06/2012 | 1830 |
Subject: | SGP/EBBR/E15 - Soil heat flow #5 failure |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | Soil_heat_flow_5 sensor failed at times, resulting in sensible and latent heat fluxes being incorrect at times. Sensor was replaced 2/6/2012. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/06/2012 | 0000 | 05/02/2012 | 1730 |
Subject: | SGP/EBBR/E15 - Sensible and Latent heat fluxes incorrect |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Soil Heat Flow sensor 5 was incorrect at times and just "noisy" at other times. Therefore Sensible and Latent heat fluxes were often incorrect. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/1993 | 1100 | 12/01/1993 | 1830 |
Subject: | Incorrect readings for pressure sensor |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | ARM PROBLEM IDENTIFICATION FORM (PIF) PIF No. P940105.1 Subject: SGP/Ebbr - Incorrect readings for pressure sensor at E15 Submitted By: David R. Cook Organization: Argonne National Laboratory Date Submitted: December 13, 1993 How may we contact you? e-mail: cook@anler.er.anl.gov phone: (708) 252-5840 FAX: (708) 252-9792 Submitter's Priority: 3 [Critical-1 Very Important-2 Important-3 Inconvenient-4 Interesting-5] Where was this Problem Identified: DA [Site Data System-SDS Experiment Center-EC] [Archive-A At Field Instrument-FI ] [During Data Analyis-DA Other- List Location] Does this PIF result in a Software Change Request? No Where: [ SDS, EC, or A ] Type: [Development-1 Problem-2 Enhancement-3] List Programs/Documents Affected: Configuration Identification: Does problem impact data values or cause data loss? Data values. which platform(s): EBBR, E15, Ringwood, OK Specify (or estimate) begin and end dates Begin Date 7/11/93 End Date 12/01/93 Time 1830 GMT Apparent cause of data loss, if known: SUGGESTED CAUSES: Calibration Drift. [human error, component failure, temperature, lightning ] [foreign matter, power loss, software failure, ] [communications failure, modification difficulites, specify other] Problem Description/Change Description. o For Instrument Problems ONLY, Identify MODE of Operation: Normal o Give a brief explanation with details, attach examples and any supporting information. This should include a description of analysis leading to identification of problem and, if known, recommended action. Beginning July 11, 1993, the atmospheric pressure sensor at the E15 EBBR began indicating approximately 0.2 KPa lower than the colocated SMOS. Between July 31 and August 22, 1993 the difference increased to between 0.25 and 0.30 KPa. After August 22, the difference increased to 0.3 to 0.35 KPa and remained that way until December 1, 1993. A comparison of the EBBR pressure sensor with the portable standard on December 1, 1993 indicated that the EBBR sensor was 0.04 KPa higher than the standard; this is excellent agreement considering that the uncertainty of the EBBR sensor calibration is 0.15 KPa. The consistent bias in EBBR pressure between July 11 and December 1 can be easily detected in comparisons with SMOS pressure data. No EBBR data other than pressure was affected by the pressure problem; calculations of specific heat at constant pressure (which includes the term 1/(p-vp)) times other terms (including p-.378*vp) result in no error to the third decimal point at least in the resulting Bowen Ratio. For example; assume a common vapor pressure (vp) of 2.0 kPa, a common atmospheric pressure of 97.0 kPa, and a corrupted atmospheric pressure of 96.65 kPa at the extreme. Uncorrupted Corrupted (97.0-.378*2.0)/(97.0-2.0) = 1.0131 (96.65-.378*2.0)/(96.65-2.0) = 1.0131 1.0131/1.0131 = 1.0000 There is no effect on the Bowen Ratio as a result of the corruption. Therefore, no correction to the quantities calculated using pressure is needed. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/26/1994 | 1530 | 10/11/1994 | 1910 |
Subject: | SGP/EBBR/E15 - Net Radiometer Hemisphere Changes |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The upper hemisphere of the net radiometer at the site was punctured allowing water to collect in the lower (and sometimes upper) section of the sensor. The punctures are most likely the result of migratory birds (a problem that we have experienced almost every year here at ANL also). The punctures (and water in some net radiometers) did not result in obvious invalidation of the data. Whether there is water in the lower hemisphere or not, a small puncture of the upper hemisphere would not have a major effect on the net radiation measurement. Significant amounts of water in the lower hemisphere should have a major effect on nighttime measurements particularly, although that effect is hard to detect in the data. The date when the puncture occurred is approximate - but is certainly no more than two weeks before the hemisphere was replaced. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/1994 | 1915 | 10/11/1994 | 1930 |
Subject: | SGP/EBBR/E15 - Net Radiometer Hemisphere Changes |
DataStreams: | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Incorrect data during hemisphere change. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/31/1994 | 2140 | 01/01/1995 | 1730 |
Subject: | SGP/EBBR/E15 - Frozen Wind Speed Instrument |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | On December 31, 1994 EBBR wind speed instrument froze in place from icing. Wind speeds increased sufficiently on January 1, 1995 to break the anemometer free. The wind direction instrument was not affected. The times and fields that are incorrect are shown below. 5 minute: wind_s, res_ws 12/31 2140 GMT - 1/1 1705 GMT 15 minute: wind_s 12/31 2145 GMT - 1/1 1715 GMT 30 minute: wind_s, res_ws 12/31 2200 GMT - 1/1 1730 GMT |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/06/1995 | 1645 | 06/06/1995 | 1830 |
Subject: | SGP/EBBR/E15 - Battery Voltage Drop, Storage Module Change |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | For a short period on June 6, 1995 at E15, Ringwood, OK, two events resulted in a loss of data: replacement of the storage module and a low battery condition. The low battery condition apparently affected only the 1815 GMT data output. All data during this period is missing (1645-1800 GMT) of incorrect (1815-1830). |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/1995 | 0145 | 03/07/1995 | 1725 |
Subject: | SGP/EBBR/E15 - Frozen Wind Speed Sensor |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | On March 7, 1995 freezing rain stopped the cups of the EBBR wind speed instrument at Ringwood, OK (E15). All 5, 15, and 30 minute data values indicated below are incorrect for the period indicated. 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/23/1995 | 0000 | 08/16/1995 | 2359 |
Subject: | SGP/EBBR/E15 - AEM Home 15 Values High |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Beginning on June 23, 1995, the home 15 value indicated greater than 70 at times. This indicates that the home 15 and 30 outputs are somehow being electronically added in the AEM. Home 15 values above 70 cause a data quality message to be output in the site operations log as the stated acceptable range for home 15 is 35 to 70. However, no data is incorrect as a result of this condition. No replacement AEM is available and site operations was not able to diagnose the problem. At present, data quality is not jeopardized. I will submit another DQR or addendum when successful repair or replacement of the AEM is accomplished. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/27/1995 | 1615 | 09/14/1995 | 1600 |
Subject: | SGP/EBBR/E15 - AEM Not Exchanging |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | On August 27, 1995 at approximately 1615 GMT the upper sprocket shaft of the AEM broke in two, causing the AEM to stop exchanging. The home signal values then remained at around 22 for both home_15 and Home_30. On August 28 site operations personnel removed the fuse (to prevent exchange) with the left aspirator in the down position. The home signal values remained around -2.3 after that. The AEM will remain in this condition until a replacement is available. Therefore, the calculations of Bowen ratio, latent heat flux, and sensible heat flux are incorrect for all times after August 27, 1995 at 1615 GMT. The data fields listed below are incorrect after this time: 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, Bowen, e, h It is not possible to reliably calculate the Bowen ratio, e, and h using the 15 minute data. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/27/1995 | 1615 | 09/14/1995 | 1630 |
Subject: | SGP/EBBR/E15 - AEM Replaced |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Please see DQR P950908.1, where this problem was first documented. On August 27, 1995 at approximately 1615 GMT the upper sprocket shaft of the AEM broke in two, causing the AEM to stop exchanging. The home signal values then remained at around 22 for both home_15 and Home_30. On August 28 site operations personnel removed the fuse (to prevent exchange) with the left aspirator in the down position. The home signal values remained around -2.3 after that. On 14 September 1995, site operations personnel replaced the AEM (serial numbers unknown) and it has operated correctly since then. The calculations of Bowen ratio, latent heat flux, and sensible heat flux are incorrect for all times during the period listed above. The data fields listed below are incorrect: 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, Bowen, e, h It is not possible to reliably calculate the Bowen ratio, e, and h using the 15 minute data. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/11/1995 | 0115 | 11/15/1995 | 2359 |
Subject: | SGP/EBBR/E15 - AEM Exchange Stopped in Snow and Freezing Rain |
DataStreams: | sgp30ebbrE15.b1 |
Description: | On the night of November 10-11, a north-south line from south central Kansas through south central Oklahoma received snow and freezing rain and experienced below freezing temperatures. This caused the EBBR automatic exchange mechanism (AEM) to stop exchanging temporarily. Note that temperatures, relative humidities, and vapor pressures are not affected; these are correct as measured, but the height at which the measurements occurred must be determined from the home signal value. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/1995 | 1650 | 12/14/1995 | 2100 |
Subject: | SGP/EBBR/E15 - Annual calibration changeout |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1 |
Description: | On December 14, 1995 the changeout for annual calibration occurred at E15, Ringwood, OK. Between 1650 and 2050 GMT no data was remotely collected. Furthermore, 5 minute data for 2050 GMT is incorrect, 15 minute data for 2045 GMT is incorrect, and 30 minute data for 2100 GMT is incorrect. A rather large jump in soil moisture appears in the data after the installation was completed (the bags holding the probes were soaked with water before installation). Soil measurements indicated greater than ambient soil moisture until a rain on late 18 December saturated the soil; after this period the probes reflected actual soil moisture conditions. The larger than normal soil moistures have little impact on the small soil heat flux during this time of year, and thus no significant affect on computed sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/1995 | 1845 | 12/19/1995 | 1755 |
Subject: | SGP/EBBR/E15 - Wind Speed Cups Frozen |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Freezing rain, snow, and below freezing conditions during 18-19 January 1995 caused the wind speed sensor cups to freeze in a stopped state at E15, Ringwood, OK on 18 January 1995. When temperatures rose to above freezing on 19 January, the ice thawed and the cups turned freely again. Measurements affected by the stalled wind speed sensor include: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/1995 | 1600 | 01/16/1996 | 2030 |
Subject: | SGP/EBBR/E15 - Reprocess: Soil Temperature Probe Malfunction |
DataStreams: | sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Malfunction of soil temperature probe #3 at 157, Ringwood, OK resulted in incorrect data values for 7 fields for the period of time listed above. The soil temperature value from probe #3 went offscale, resulting in a zero value for the soil energy storage term calculated from that probe and thus no contribution to the total soil heat flux for soils set 4 and the same for average soil heat flux. This led to incorrect sensible and latent heat flux values. The probe may have become disconnected during the 20 December site operations preventative maintenance visit. However, it also had rodent chew damage and so was removed and replaced. The fields that are incorrect are: 30 minute: ts3, ces3, g3, ave_shf, e, h 15 minute: rr_ts3. Soil temperature probe #3 was replaced at 2030 GMT on 16 January 1996. The old S/N was 95043, the new S/N is 93018. Sensible and latent heat fluxes can be recomputed by averaging the soil heat flux from the four sets of functioning soil probes; use the following equations: ave_shf = (g1 + g2 + g4 + g5)/4 e = -(q +ave_shf)/(1 + bowen) h = e * bowen, where g is total soil heat flow, q is net radiation, and bowen is Bowen Ratio. |
Measurements: | sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1995 | 0630 | 12/22/1995 | 1445 |
12/22/1995 | 2230 | 12/23/1995 | 1445 |
12/24/1995 | 0245 | 12/24/1995 | 1445 |
12/25/1995 | 0330 | 12/25/1995 | 1515 |
12/26/1995 | 0230 | 12/26/1995 | 1445 |
12/27/1995 | 0215 | 12/27/1995 | 1445 |
12/28/1995 | 0000 | 12/29/1995 | 1700 |
12/29/1995 | 1800 | 12/29/1995 | 1815 |
12/29/1995 | 1930 | 01/03/1996 | 1430 |
01/04/1996 | 0530 | 01/04/1996 | 1430 |
01/04/1996 | 1500 | 01/04/1996 | 1645 |
01/04/1996 | 1900 | 01/05/1996 | 1730 |
01/05/1996 | 1930 | 01/05/1996 | 2000 |
01/05/1996 | 2045 | 01/06/1996 | 1445 |
01/07/1996 | 0500 | 01/07/1996 | 1500 |
01/08/1996 | 0300 | 01/08/1996 | 1445 |
01/09/1996 | 0745 | 01/09/1996 | 1415 |
01/10/1996 | 0730 | 01/10/1996 | 1615 |
01/11/1996 | 0130 | 01/11/1996 | 1430 |
01/12/1996 | 0230 | 01/12/1996 | 1445 |
01/13/1996 | 0100 | 01/13/1996 | 1445 |
01/14/1996 | 0030 | 01/14/1996 | 1445 |
01/15/1996 | 0045 | 01/15/1996 | 1600 |
01/15/1996 | 2330 | 01/16/1996 | 2015 |
Subject: | SGP/EBBR/E15 - Battery Voltage Drop |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | From the installation of the changeout unit at E15 on 15 December 1995, the battery exhibited a slow decline in voltage. However, after a day of the AEM not operating, site operations restarted the AEM on 20 December 1995 and the battery condition declined more rapidly, such that the solar panel was not able to keep the battery voltage up (greater than 11 V DC) for nighttime conditions, even after a cloudless day. Battery voltage first dropped below 11 volts at 0635 GMT on 21 December. I requested that the solar panel voltage regulator be tested. On 16 January 1996, site operations found that the fuse in the solar panel voltage regulator was loose. After the fuse was repositioned, the battery voltage increased almost immediately to 13.5 volts and has been good since. All data for the periods above should be considered incorrect; many sensors require at least 11 volts DC power and the performance of the CR10 data logger can not be trusted at less than 11 volts. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/1996 | 1610 | 04/23/1996 | 1703 |
Subject: | SGP/EBBR/E15 - 3-month check |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | During EBBR 3-month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during this period, at least, do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. The period of incorrect data for the EBBR is listed above; data times affected do not include the beginning time and do include the ending time (data files are denoted by the end time). |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/05/1996 | 1658 | 11/05/1996 | 1732 |
Subject: | SGP/EBBR/E15 - EBBR 3 Month Checks - 10 EFs |
DataStreams: | sgp30ebbrE15.b1, sgp15ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for periods indicated. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/1995 | 1845 | 12/19/1995 | 1755 |
Subject: | SGP/EBBR/E15 - Wind Speed Cups frozen |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Freezing rain, snow, and below freezing conditions during 18-19 January 1995 caused the wind speed sensor cups to freeze in a stopped state at E15, Ringwood, OK on 18 January 1995. When temperatures rose to above freezing on 19 January, the ice thawed and the cups turned freely again. Measurements affected by the stalled wind speed sensor include: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/1997 | 2245 | 04/22/1997 | 1830 |
Subject: | SGP/EBBR/E15 - Connections Affecting Home Signals |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | For most of the period above at E15, Ringwood, OK, home signals were very large, resulting in incorrect data. On April 22, 1997, site operations found some loose connections on the J-panels that were causing the problem. This problem affected a wide range of measurements and calculated values, rendering much of the data, including the sensible and latent heat fluxes as incorrect. Only careful examination of the data would allow some to be used as is and other quantities to be recalculated. I would request that anyone needing this data contact me for information on it's quality. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/30/1997 | 1000 | 08/14/1997 | 1500 |
Subject: | SGP/EBBR/E19 - Reprocess: E19 EBBR Soil heat Flow Probe #5 Upsidedown |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1 |
Description: | Soil heat flow probe #5 was installed upsidedown at the initial installation of the EBBR system. The data from it had the wrong sign. Site operations personnel reversed its orientation in the soil on August 14, 1997, thereby correcting the problem. Values affected (and thus incorrect) include: 15 minute: mv_hft5 30 minute: shf5, c_shf5, g5, ave_shf, e, h. The latent and sensible heat fluxes can be recalculated by reversing the sign of cshf5, adding it to ces5 and recomputing the average soil heat flow, ave_shf = (g1 + g2 + g3 + g4 + g5)/5 e = -(q + ave_shf)/(1 + bowen) h = -(e + ave_shf + q). |
Measurements: | sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/22/1997 | 1525 | 04/22/1997 | 1546 |
Subject: | SGP/EBBR/E15 - EBBR Biannual Checks |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for periods indicated. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/10/1997 | 2000 | 10/23/1997 | 1700 |
Subject: | SGP/EBBR/E18 - Left RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1 |
Description: | The left humidity probe temperature produced incorrect values from the time of installation of the E18 EBBR until 23 October at 1700 GMT because of a poor connection. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/30/1997 | 1500 | 12/31/1997 | 1520 |
Subject: | SGP/EBBR/E19 - Battery Voltage Drop |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | EBBR battery voltage at E19, El Reno, OK declined to lower than acceptable levels after long periods of clouds after initial installation. The low voltage condition worsened as Autumn progressed. In November 1997 the battery tested okay, but would not hold sufficient capacity at night or during extended periods of clouds to keep the voltage high enough for the EBBR to work properly. At my request, the battery was replaced with a brand new battery on 31 December 1997. The new battery is presently maintaining voltage level at night. The voltage dropped to 10 volts or less many days before the battery change. Voltages less than 10.3 volts affected a wide range of measured values, but at different times. When the voltage was much below 10 volts the home signal became very large (several volts), a quirk of the AEM circuitry. At various times, latent and sensible heat fluxes, soil temperature, air temperature, relative humidity, vapor pressure, wind direction, soil heat flux plate output, home signal, and atmospheric pressure (at least) were not reported correctly by the CR10 datalogger. At least the sensible and latent heat fluxes should be considered to be incorrect when the battery voltage is less than 10.3 volts. The battery voltage is found in the 15 minute data. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/30/1997 | 1500 | 07/20/1999 | 1530 |
Subject: | SGP/EBBR/E19 - Noisy Sensible and Latent Heat Fluxes |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | "Noisy" sensible and latent heat fluxes often occur during daytime periods when the net radiation is smaller (less than 150 watts/m2), but this is not the only condition under which it occurs. During this condition especially, the temperature gradient, RH gradient, and thus the vapor pressure gradient are near zero; this causes the sensible and latent heat flux gradients to be inaccurately calculated. Good examples of these conditions occurred on 28 December 1997 and 6 January 1998. However, even when there is substantial net radiation the problem does sometimes occur; good examples of this are found during daytime or nighttime variously on 1, 2, 3, and 4 January 1998. The conditions occur more fequently than at other EBBR sites; they do occur at other EBBR sites, but less frequently. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1997 | 0440 | 12/21/1997 | 1820 |
01/04/1998 | 0525 | 01/05/1998 | 1830 |
01/09/1998 | 2150 | 01/12/1998 | 0330 |
Subject: | SGP/EBBR/E15 - EBBR Frozen Wind Speed |
DataStreams: | sgp5ebbrE15.b1, sgp30ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | Wind speed cups were frozen during the indicated time periods. All 5, 15, and 30 minute data values indicated are incorrect for the periods listed. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0920 | 01/04/1998 | 1710 |
01/07/1998 | 0745 | 01/09/1998 | 2359 |
Subject: | SGP/EBBR/E19- EBBR Frozen Wind Speed |
DataStreams: | sgp5ebbrE19.b1, sgp30ebbrE19.b1, sgp15ebbrE19.b1 |
Description: | Wind speed cups were frozen during the indicated time periods. All 5, 15, and 30 minute data values indicated are incorrect for the periods listed. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0630 | 01/05/1998 | 1830 |
12/21/1997 | 0745 | 12/21/1997 | 1715 |
Subject: | SGP/EBBR/E15 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) |
DataStreams: | sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp15ebbrE15.b1 |
Description: | The EBBR AEM stopped exchanging because of icing at during this time period. The calculations of Bowen ratio, latent heat flux, and sensible heat flux are incorrect for the time period indicated. The other measurements listed are also incorrect for those times: |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/16/1997 | 1600 | 12/29/1997 | 1730 |
Subject: | SGP/EBBR/E15 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The upper dome of the EBBR net radiometers was punctured. After the puncture, water collected in the top and/or bottom dome. The water was removed and the dome was replaced during PM visits. In some cases, the puncture and water resulted in incorrect data. Comparison with net radiation values from surrounding EBBR sites and the SIRS is neccesary to determine if the EBBR net radiation data are correct or incorrect. It is often difficult to tell from the data when the punctures occurred, but they would have existed for no more than 2 weeks, since the domes are checked during each two-weekly PM visit. Incorrect net radiation data results in the latent heat flux and sensible heat flux also being incorrect. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/14/1998 | 0915 | 01/14/1998 | 1920 |
Subject: | SGP/EBBR/E15 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The wind speed sensor was frozen during the period. Data values that were incorrect are: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/07/1997 | 1750 | 10/07/1997 | 1832 |
Subject: | SGP/EBBR/E15 - 3-Month Check |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/1997 | 1355 | 10/23/1997 | 1420 |
Subject: | SGP/EBBR/E18 - 3 Month Check |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/1997 | 1528 | 10/09/1997 | 1602 |
Subject: | SGP/EBBR/E19 - 3-Month Check |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period indicated. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/1998 | 0000 | 04/21/1998 | 1515 |
Subject: | SGP/EBBR/E15 - Pressure Diurnal Fluctuations |
DataStreams: | sgp30ebbrE15.b1 |
Description: | During this period the barometric pressure exhibited increasingly larger, and unatural, diurnal fluctuations. This has been observed at other sites previously. The sensor was replaced on April 21. The diurnal fluctuations had only a minor effect on the calculated fluxes of latent and sensible heat; the fluxes are not incorrect as a result of the problem. |
Measurements: | sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/21/1998 | 1530 | 04/28/1998 | 1530 |
Subject: | SGP/EBBR/E15 - Pressure Too High |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | During this period the barometric pressure was consistently much greater than the true pressure, hanging around 113 kPa all of the time. The defective sensor was replaced on April 28. The calculated fluxes of latent and sensible heat are incorrect during the period. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/1998 | 0930 | 05/01/1998 | 1530 |
Subject: | SGP/EBBR/E15 - Left T/RH Probe Temperature Too Large |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Beginning in February, the temperature of the left T/RH probe reported too high a value at some times. The frequency of the problem increased with time until 28 April at 1520 GMT, when a defective probe was installed; the latter probe temperature indicated very high values. This continued until 1 May at 1530 GMT when a working probe was installed. Times of incorrect humidity probe temperatures can be determined by comparing 5 or 30 minute values of air temperature and humidity probe temperature; at these times the calculated bowen ratio, and the fluxes of latent and sensible heat are incorrect. The incorrect variables were: 5 minute: thum_top, thum_bot, vp_top, vp_bot 15 minute: rr_thum_l 30 minute: thum_top, thum_bot, vp_top, vp_bot, bowen, e, h |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/05/1998 | 1459 | 05/05/1998 | 1530 |
Subject: | SGP/EBBR/E15 - Six Month Checks |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | During EBBR 6 month checks (formally called 3 month checks) the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/1998 | 1402 | 05/21/1998 | 1430 |
Subject: | SGP/EBBR/E18 - Six Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | During EBBR 6 month checks (formally called 3 month checks) the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/1998 | 1430 | 05/07/1998 | 1500 |
Subject: | SGP/EBBR/E19 - Six-Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | During EBBR 6 month checks (formally called 3 month checks) the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during these periods do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period indicated. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/10/1997 | 2000 | 06/18/1998 | 1420 |
Subject: | SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | When the CR10 program was loaded in the storage module of the newly installed EBBR unit at E18 on 10 September 1997, an incorrect calibration for the net radiometer was present. The incorrect calibration had apparently been entered into the storage module by the vendor before the unit was shipped. The .DOC file showed the correct calibration; therefore, we did not suspect a problem until comparisons with radiometers at other sites nearby were performed. The program with the correct calibration was entered on 18 June 1998. The 15 minute mv_q values were not affected. The 5 and 30 minute q values during the period above need to be corrected; multiply positive q values by 0.684, multiply negative values by 0.811; Sensible (h) and Latent Heat (e) fluxes for the period need to be recalculated with the equations below. e = -(q + ave_shf)/(1 + bowen) h = -(e + ave_shf + q) |
Measurements: | sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/05/1998 | 1200 | 11/05/1998 | 1800 |
Subject: | SGP/EBBR/E15 - Aspirator loosened from AEM mount |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The left aspirator was loosened from the AEM mount. Thus all gradients of T/RH/VP and sensible and latent heat fluxes for the period are incorrect. T/RH/VP measurements from the left probe are incorrect only through 1745 GMT. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/15/1998 | 0100 | 11/17/1998 | 2100 |
Subject: | SGP/EBBR/E18 - Water In Net Radiometer, Flux Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Incorrect Net Radiation values resulted from water in the bottom dome. Thus incorrect sensible and latent heat fluxes resulted. Affected values are: 5 minute: q 15 minute: mv_q 30 minute: q, e, h |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 1635 | 12/23/1998 | 2000 |
Subject: | SGP/EBBR/E18 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
sgp5ebbrE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/1998 | 1105 | 12/23/1998 | 0400 |
Subject: | SGP/EBBR/E19 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 0005 | 01/08/1999 | 0900 |
Subject: | SGP/EBBR/E15 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/1999 | 2240 | 01/10/1999 | 1530 |
Subject: | SGP/EBBR/E19 - Wind Speed Data Incorrect |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00, sgp15ebbrE19.b1 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 0505 | 12/24/1998 | 1830 |
Subject: | SGP/EBBR/E19 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1, sgp5ebbrE19.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp5ebbrE19.00:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 1005 | 12/22/1998 | 2000 |
Subject: | SGP/EBBR - EBBR E18 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
sgp5ebbrE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/02/1999 | 0805 | 01/02/1999 | 1800 |
Subject: | SGP/EBBR/E18 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
sgp5ebbrE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 1015 | 01/10/1999 | 1300 |
Subject: | SGP/EBBR/E18 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE18.b1:
sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
sgp5ebbrE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/1998 | 2135 | 12/25/1998 | 1730 |
01/01/1999 | 1620 | 01/02/1999 | 2000 |
01/07/1999 | 2215 | 01/09/1999 | 0130 |
Subject: | SGP/EBBR/E15 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1999 | 1620 | 01/02/1999 | 2000 |
Subject: | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/1999 | 2215 | 01/09/1999 | 0130 |
Subject: | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1, sgp5ebbrE15.00 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp5ebbrE15.00:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/02/1999 | 0400 | 02/23/1999 | 1500 |
Subject: | SGP/EBBR/E15 - Temperatures Incorrect |
DataStreams: | sgp15ebbrE15.b1, sgp30ebbrE15.b1, sgp5ebbrE15.b1 |
Description: | Poor contact of the reference temperature probe leads to the J-panel or multiplexer caused frequent offscale and incorrect values of the reference temperature. All other temperature measurements (air, soil, and humidity probe) depend on the reference temperature for a correction. Therefore all temperature measurements are frequently offscale and incorrect during the specified period. The data clearly shows the offscale times. |
Measurements: | sgp5ebbrE15.b1:
sgp30ebbrE15.b1:
sgp15ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/1999 | 0500 | 03/11/1999 | 1540 |
Subject: | SGP/EBBR/E19 - Net Radiation Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Water in the net radiometer dome made the net radiation data incorrect. Comparison with surrounding EBBR sites should allow for an approximate correction of the net radiation data. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/08/1999 | 1430 | 04/16/1999 | 1730 |
Subject: | SGP/EBBR/E19 - Incorrect Tref, Tair Data, Bowen Ratio, latent and sensible heat fluxes |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | All Tref and Tair temperatures, plus bowen ratio, latent heat flux, and sensible heat flux values are incorrect for this period. This problem was caused by mistakenly removing the Tref sensor. |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/08/1997 | 2030 | 06/17/1999 | 1600 |
Subject: | SGP/EBBR/E18 - Pressure Incorrect |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1, sgp5ebbrE18.00 |
Description: | The pressure sensor was replaced at E18 EBBR without the replacement being noted by Site Ops and therefore without an indication of serial number and thus correct calibration. The serial number of the sensor was observed during a PM (after months of confusion concerning the thing) and a several month search for the calibration sheet at ANL, the CF, and the manufacturer ensued. The sheet was finally found and I confirmed that an incorrect offset was being used (the same as used for the previous sensor). This is an easy error to make as there are two models of pressure sensors (with different calibration ranges) being used in the EBBR systems. On June 17, 1999 the correct offset was entered into the CR10 and storage module programming. The pressure for the period should be increased by 6.757 kPa. The result of the error is that Bowen ratio was underestimated by 6.8% on average, Latent Heat Flux was overestimated by 3.6% on average, and Sensible Heat Flux was underestimated by 3.6% on average. The errors in the fluxes are smaller than the estimated 10% error in the Bowen ratio flux measurement technique and therefore the data does not need to be reprocessed. Anyone performing area averages of pressure or looking at the variation in pressure over the CART Site should adjust the E18 EBBR pressure values for this period using the offset error indicated above. |
Measurements: | sgp30ebbrE18.b1:
sgp5ebbrE18.b1:
sgp5ebbrE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/25/1999 | 1630 | 04/22/1999 | 1500 |
Subject: | SGP/EBBR/E19 - Temperature of Left Humidity Probe Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | A poorly seated lead caused the temperature reading from the left humidity probe to be incorrect. This also affects the calculated vapor pressures,the Bowen ratio, and the sensible and latent heat fluxes. The affected values are: 5 minute: thum_top, thum_bot, vp_top, vp_bot 15 minute: rr_thum_l 30 minute: thum_top, thum_bot, vp_top, vp_bot, bowen, e, h |
Measurements: | sgp15ebbrE19.b1:
sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|