DQR ID | Subject | Data Streams Affected |
---|---|---|
D000225.7 | SGP/EBBR - EBBR E13 Left Aspirator Not Working | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D000301.3 | SGP/EBBR - EBBR E13 Net Radiation Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D000531.4 | SGP/EBBR/E13 - failure of sensors | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.00 |
D000531.5 | SGP/EBBR/E13 - Failed Right Humidity Probe | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00 |
D000628.1 | SGP/EBBR/E13- Left humidity probe replaced | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
D010403.10 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.16 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.17 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.18 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D010403.19 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.20 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.22 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.24 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.3 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.35 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.36 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D010403.37 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.38 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.39 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.4 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.40 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.41 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.42 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.43 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.44 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.45 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.6 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.8 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.9 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010412.1 | SGP/EBBR/E13 - E13 EBBR Soil Temperature #4 Suspect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D010413.1 | SGP/EBBR/E13 - E13 EBBR Wind Direction Iced | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010413.2 | SGP/EBBR/E13 - E13 EBBR Soil Heat Flow #4 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010605.5 | SGP EBBR E13 - E13 EBBR Soil T #4 Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D011127.27 | SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020129.10 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil heat Flows #1 and #2 Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020129.11 | SGP EBBR E13 - E13 EBBR Data Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.12 | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020129.13 | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020129.2 | SGP EBBR E13 - E13 EBBR AEM in Mid Position | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.3 | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.4 | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.5 | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.7 | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.8 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020129.9 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D020131.13 | SGP/EBBR/E13 - Left T/RH Probe Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.1 | SGP/EBBR/E13 - Left Humidity Probe Temperature Incorrect | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.2 | SGP/EBBR/E13 - Data incorrect during maintenance | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.5 | SGP/EBBR/E13 - Data Incorrect During 6 Month Checks | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
D020628.16 | SGP/EBBR/E13 - T/RH Check | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020628.2 | SGP/EBBR/E13 - 3-month Check | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020716.12 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020717.15 | SGP/EBBR/E13 - Wrong CR10 Program Installed | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
D020717.17 | SGP/EBBR/E13 - AEM Hung up | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D020723.1 | SGP/EBBR/E13 - Thermocouple out of range, data incorrect | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D030110.34 | SGP/EBBR/E13 - Data Incorrect during 6 month checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030115.4 | SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030115.6 | SGP/EBBR/E13 - AEM Jung between Home Positions | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030712.17 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030919.8 | SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031031.5 | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031204.10 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031222.16 | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031222.17 | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040304.12 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040608.6 | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040915.2 | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040915.6 | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D041222.12 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050206.10 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050207.6 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050510.3 | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D050622.1 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051104.2 | SGP/EBBR/E13 - Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051104.3 | SGP/EBBR/E13 - Loose connections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051111.11 | SGP/EBBR/E13 - metadata corrections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060111.9 | SGP/EBBR/E13 - Wind Speed Sensor Frozen | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.12 | SGP/EBBR/E13 - Missing Data | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.13 | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.14 | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060622.1 | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060622.2 | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060818.10 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060921.5 | SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D060921.6 | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D060921.7 | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D061114.6 | SGP/EBBR/E13 - Battery failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D070917.1 | SGP/EBBR/E13 - Radiometer dome broken | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D080318.1 | SGP/EBBR/E13 - Wind direction failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D090313.13 | SGP/EBBR/E13 - Wind Speed Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D100727.5 | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D101004.2 | SGP/EBBR/E13 - Net Radiation Too Large | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D110721.1 | SGP/EBBR/E13 - Soil temperature #3 offscale | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D940106.5 | SGP/EBBR/E13 - Invalid data during disconnection of AEM at E13 | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D940511.2 | SGP/EBBR/E13 - SM4 Replacement | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D941021.5 | SGP/EBBR/E13 - Soil Temperature Aberations | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D941208.1 | SGP/EBBR/E13 - Net Radiation - Hemisphere Replacement | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D950126.1 | SGP/EBBR/E13 - Incorrect Soil Temperature #4 | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D950626.1 | SGP/EBBR/E13 - Frozen Wind Speed Sensor | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D950626.2 | SGP/EBBR/E13 - Frozen Wind Speed Sensor | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D950626.7 | SGP/EBBR/E13 - Reprocess: Soil Temperature Malfunction | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D950828.1 | SGP/EBBR/E13 - Battery Voltage Drop | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D951113.1 | SGP/EBBR/E13 - Wind Direction Set Pin Slippage | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D951113.6 | SGP/EBBR/E13 - Battery voltage drop | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D951220.6 | SGP/EBBR/E13 - battery voltage drop | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D960321.2 | SGP/EBBR/E13 - Battery Voltage High | sgp15ebbrE13.b1 |
D960408.1 | SGP/EBBR/E13 - Solar Panel Voltage Regulator malfunction | sgp15ebbrE13.b1 |
D960508.6 | SGP/EBBR/E13 - 3-month check | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D961122.11 | SGP/EBBR/E13 - Wind Direction Incorrect | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D961122.24 | SGP/EBBR/E13 - EBBR 3 Month Checks - 10 EFs | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.b1 |
D970330.1 | SGP/EBBR/E13 - Frozen Wind Speed Sensor | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
D970730.3 | SGP/EBBR/E13 - CR10 Malfunction | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D971021.5 | SGP/EBBR/E13 - EBBR Biannual Checks | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.b1 |
D980117.19 | SGP/EBBR/E13- EBBR Frozen Wind Speed | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
D980117.27 | SGP/EBBR/E13 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.b1 |
D980410.8 | SGP/EBBR/E13 - Wind Speed Sensor Frozen | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D980416.12 | SGP/EBBR/E13 - 3-Month Check | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D980529.10 | SGP/EBBR/E13 - Six Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D981112.5 | SGP/EBBR/E13 - Net Radiation Incorrect - Water in Bottom Dome | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D990127.32 | SGP/EBBR/E13 - Wind Speed Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D990127.33 | SGP/EBBR - EBBR E13 Wind Speed Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
D990127.34 | SGP/EBBR - EBBR E13 Wind Speed Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
D990415.1 | SGP/EBBR/E13 - Wind Speed Frozen | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/13/2000 | 2115 | 01/13/2000 | 2130 |
Subject: | SGP/EBBR - EBBR E13 Left Aspirator Not Working |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | A loss of the 12V DC power to the left aspirator caused it to stop operating. The affected measurements are: 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, h, e |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/20/1999 | 1930 | 09/23/1999 | 1930 |
Subject: | SGP/EBBR - EBBR E13 Net Radiation Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 07/24/1995 | 2300 |
Subject: | SGP/EBBR/E13 - failure of sensors |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.00 |
Description: | A lightning strike to the central cluster area shortly after 0800 GMT on July 17 caused failure of several EBBR sensors: both humidity probes, the barometer, soil heat flux #3, soil moisture # 1 and the wind direction. These failed sensors caused sensible, latent, and average soil heat flux to be incorrect until site operations performed maintenance on July 24th. Site Operations found a loose connection from soil moisture probe #1, removed barometer SN 6578 and replaced it with SN 6507, removed soil heat flux sensor #3 with SN 923022 and replaced it with SN 933199, repositioned the wind direction sensor - which was rotated approximately ninety degrees clockwise from its proper position, and removed the right humidity probe SN 460412 and replaced it with SN 460428. |
Measurements: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 09/22/1995 | 2108 |
Subject: | SGP/EBBR/E13 - Failed Right Humidity Probe |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00 |
Description: | A lightning strike to the central cluster area on 17 July 1995 caused failure of several EBBR sensors including the right humidity probe. On July 24th, site operations removed the right humidity probe SN 460412 and replaced it with SN 460428 In less than a day the right humidity probe output soared to over 113% and has hovered around 112% since. I consider all right probe values to be incorrect due to this behavior. Without a properly functioning right humidity probe, all values of top and bottom relative humidity, top and bottom vapor pressure, Bowen ratio, and latent and sensible heat fluxes are incorrect. A working spare relative humidity probe was not available at that time. The probe was replaced with a working, calibrated probe on 22 September 1995 at about 2108 GMT. I have the examined the data since the day of the replacement and find that the new probe is working well. All E13 EBBR measurements are presently correct. The old probe S/N was 460428, the new S/N is 460413. |
Measurements: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 07/25/1995 | 1930 |
Subject: | SGP/EBBR/E13- Left humidity probe replaced |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
Description: | A lightning strike to the central cluster area on 17 July 1995 caused the left humidity probe to fail. Some of the period of incorrect data has been discussed in D0000531.4. The left humidity probe was replaced on 25 July 1995 at 1925 GMT (old SN 460413, new SN 460435). |
Measurements: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/2001 | 1730 | 01/04/2001 | 1731 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/16/2000 | 2130 | 03/19/2000 | 1701 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Low battery voltage caused all data to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2000 | 0130 | 11/06/2000 | 0431 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Low battery voltage caused all data to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2000 | 0120 | 11/06/2000 | 2255 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | All data was incorrect for an unknown reason. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2000 | 0945 | 11/12/2000 | 1116 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/13/2000 | 0015 | 11/14/2000 | 0031 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/28/2000 | 1230 | 02/28/2000 | 1231 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/29/2000 | 1300 | 02/29/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2000 | 0000 | 02/23/2000 | 1431 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2000 | 1300 | 03/12/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/11/2000 | 1300 | 03/11/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2000 | 1300 | 03/08/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/05/2000 | 1300 | 03/05/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2000 | 1300 | 03/01/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2000 | 0000 | 03/04/2000 | 1501 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/13/2000 | 1300 | 03/13/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/2000 | 1300 | 03/15/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/22/2000 | 1300 | 03/22/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/23/2000 | 1300 | 03/23/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/26/2000 | 1300 | 03/26/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/27/2000 | 1300 | 03/27/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2000 | 1730 | 03/23/2000 | 1901 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/2000 | 0200 | 12/14/2000 | 2301 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/31/2000 | 2300 | 12/31/2000 | 2331 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2000 | 0000 | 12/31/2000 | 0000 |
Subject: | SGP/EBBR/E13 - E13 EBBR Soil Temperature #4 Suspect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Soil Temperature #4 produced noisy measurements, resulting in quantities calculated from it to be of suspect quality. This condition normally occurred early in the GMT day. Sensible (h) and latent (e) heat fluxes were not normally greatly affected. Average surface heat flow was normally slightly underestimated. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2000 | 0000 | 12/14/2000 | 1931 |
Subject: | SGP/EBBR/E13 - E13 EBBR Wind Direction Iced |
DataStreams: | sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The wind direction sensor was iced stopped for the indicated period. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/13/2000 | 1930 | 01/12/2001 | 2001 |
Subject: | SGP/EBBR/E13 - E13 EBBR Soil Heat Flow #4 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Heat Flow #4 was large positive or negative, but always incorrect during the indicated period. This resulted in overestimates or underestimates of laetnt and sensible heat fluxes and average soil heat flow. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/1999 | 0000 | 03/08/2001 | 1931 |
Subject: | SGP EBBR E13 - E13 EBBR Soil T #4 Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Soil Temperature #4 floated around, causing average soil heat flow to sometimes be too small (resulting too small a sensible heat flux and too large a latent heat flux) or too large (resulting in too large a sensible heat flux and too small a latent heat flux). Investigation of g4 will indicate when these conditions occurred and the likely effect on sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/20/2001 | 1720 | 04/20/2001 | 1749 |
10/04/2001 | 1835 | 10/04/2001 | 1934 |
Subject: | SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1700 | 01/18/2002 | 0001 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil heat Flows #1 and #2 Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Soil Heat Flow probes #1 and #2 were incorrect during the indicated period (and for some time afterward, to be covered in another DQR). Outputs from the probes were typically too large negative or too large positive. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1715 | 10/05/2001 | 1731 |
Subject: | SGP EBBR E13 - E13 EBBR Data Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The 5 and 15 minute data was zero and thus the thirty minute data was also incorrect. This occurs after the restart of an EBBR system, in this case after a recalibration unit changeout. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/08/2001 | 2000 | 10/12/2001 | 1731 |
Subject: | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The left T/RH Probe Temperature was often incorrect, causing the other indicated measurements to be incorrect also. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/12/2001 | 1735 | 10/18/2001 | 1601 |
01/06/2002 | 1930 | 01/06/2002 | 2101 |
01/07/2002 | 2330 | 01/07/2002 | 2331 |
01/09/2002 | 0330 | 01/18/2002 | 0001 |
01/05/2002 | 1930 | 01/05/2002 | 1931 |
11/22/2001 | 0130 | 11/25/2001 | 1531 |
01/08/2002 | 1730 | 01/08/2002 | 1801 |
Subject: | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The left T/RH Probe Temperature was often incorrect, causing the other indicated measurements to be incorrect also. When the home30 signal had an offset, the top RH probe temperature was incorrect but not the bottom RH probe temperature. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2001 | 1545 | 12/28/2001 | 1931 |
10/09/2001 | 0245 | 10/09/2001 | 2145 |
Subject: | SGP EBBR E13 - E13 EBBR AEM in Mid Position |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM stopped before reaching the end of it's travel, causing the home signals to be between 0 and 3 during much of this period (therefore the data is colored yellow). All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during this condition. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/28/2001 | 1930 | 01/18/2002 | 0001 |
10/12/2001 | 1315 | 11/25/2001 | 1541 |
Subject: | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM home30 signal is offset by approximately 25; it appears that the electronics of the AEM is adding the home15 and home30 voltages together when the AEM is in the home30 position. All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during this condition. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2001 | 2245 | 10/12/2001 | 1301 |
Subject: | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM stopped before reaching the end of it's travel, causing the home signals to be between 0 and 3 during part of this period. The AEM home30 signal is offset by approximately 25 during part of this period; it appears that the electronics of the AEM is adding the home15 and home30 voltages together when the AEM is in the home30 position. All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during these conditions. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 10/05/2001 | 1401 |
Subject: | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | This condition occurred most of the time during the indicated period (hence color yellow). The left air temperature was incorrect only when the AEM was in the home 30 position. This only affected the bottom air temperature calculation. However, it made the latent heat flux, sensible heat flux, and Bowen ratio incorrect. The sensor was improperly inserted into the aspirator shield and was pinched between the shield and the T/RH probe. When the AEM was in the home30 position, the aspirator hose position may have caused the sensor to short to ground. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2001 | 0530 | 03/01/2001 | 2356 |
Subject: | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | This condition occurred most of the time during the indicated period (hence color yellow). The left air temperature was incorrect only when the AEM was in the home 30 position. This only affected the bottom air temperature calculation. However, it made the latent heat flux, sensible heat flux, and Bowen ratio incorrect. The sensor was improperly inserted into the aspirator shield and was pinched between the shield and the T/RH probe. When the AEM was in the home30 position, the aspirator hose position may have caused the sensor to short to ground. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2001 | 1935 | 03/31/2001 | 2356 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Soil Temperature #4 was often incorrect, typically too large negative, during this period, causing other measurements calculated with it to be incorrect also. This was caused by a bad multiplexor channel, which was discovered by the vendor during recalibration of the unit later. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 10/05/2001 | 1401 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Soil Temperature #4 was often incorrect, typically too large negative, during this period, causing other measurements calculated with it to be incorrect also. This was caused by a bad multiplexor channel, which was discovered by the vendor during recalibration of the unit later. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2001 | 1545 | 12/28/2001 | 1931 |
Subject: | SGP/EBBR/E13 - Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | During much of the indicated period the Left T/RH Temperature was incorrect. Because the home signal was between 0 and 3, the temperature was incorrect when the AEM was at the bottom position, but was correct when the AEM was at the top position. This was caused by a short created when the sensor was mispositioned in the aspirator housing and enough strain on the cable for it to bring it into contact with the housing in the bottom position. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/18/2002 | 0005 | 01/25/2002 | 2201 |
Subject: | SGP/EBBR/E13 - Left Humidity Probe Temperature Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The left humidity probe temperature was incorrect much of the time, as was the top humidity temperature and vapor pressure. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2002 | 2200 | 01/25/2002 | 2201 |
Subject: | SGP/EBBR/E13 - Data incorrect during maintenance |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The 5, 15, and 30 minute measurements were zero or offscale at 2200 GMT only. Electronic connections were being checked at that time. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2002 | 2010 | 01/25/2002 | 2101 |
Subject: | SGP/EBBR/E13 - Data Incorrect During 6 Month Checks |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/1994 | 2005 | 11/04/1994 | 2100 |
Subject: | SGP/EBBR/E13 - T/RH Check |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: 2005, 2010, 2015, 2020, 2025, 2030, 2035, 2040, 2045, 2050, 2055, 2100, 2105 15 minute: 2015, 2045, 2100, 2115 30 minute: 2030, 2100 (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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/06/1995 | 0000 | 10/06/1995 | 2359 |
Subject: | SGP/EBBR/E13 - 3-month Check |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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. Time of the check is not known, so the entire day has been flagged as suspect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/16/2002 | 1855 | 05/16/2002 | 1926 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1715 | 02/22/2002 | 2131 |
Subject: | SGP/EBBR/E13 - Wrong CR10 Program Installed |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
Description: | An old version 4 program was installed on 5 Oct 01 instead of the correct version 8 program. All of the indicated measurements are suspect. |
Measurements: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/2002 | 2300 | 05/09/2002 | 0101 |
05/11/2002 | 1530 | 05/11/2002 | 1601 |
01/18/2002 | 0015 | 03/03/2002 | 0801 |
03/03/2002 | 0815 | 03/08/2002 | 1401 |
03/08/2002 | 1415 | 03/09/2002 | 0931 |
03/09/2002 | 0945 | 03/09/2002 | 2001 |
03/12/2002 | 0115 | 04/12/2002 | 1901 |
04/16/2002 | 1430 | 04/16/2002 | 2001 |
04/16/2002 | 2230 | 04/17/2002 | 0031 |
04/17/2002 | 1530 | 04/17/2002 | 1701 |
04/18/2002 | 1230 | 04/18/2002 | 1231 |
05/06/2002 | 0600 | 05/06/2002 | 1931 |
05/07/2002 | 0000 | 05/07/2002 | 0001 |
05/07/2002 | 0300 | 05/07/2002 | 0301 |
05/07/2002 | 0400 | 05/07/2002 | 0401 |
05/11/2002 | 1900 | 05/11/2002 | 1901 |
03/12/2002 | 0000 | 03/12/2002 | 0101 |
04/17/2002 | 2230 | 04/17/2002 | 2231 |
05/07/2002 | 1700 | 05/07/2002 | 1731 |
Subject: | SGP/EBBR/E13 - AEM Hung up |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The automatic exchange mechanism hung numerous times, but with various different measurements of home signals. In all cases, temperature and humidity gradients were incorrect; thus the Bowen ratio, sensible heat flux, and latent heat flux are incorrect for the indicated periods. Even when the home 15 and 30 signals were different (but too high) the measurements were incorrect because the program keys off of the home signals, which must be in the proper ranges. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/1995 | 2030 | 12/22/1995 | 2130 |
Subject: | SGP/EBBR/E13 - Thermocouple out of range, data incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The left thermocouple temperature for 22 December was out of range between 2030 and 2130 GMT, yielding incorrect values as listed below: 5 minute: tair_top, tair_bot 15 minute: tair_l 30 minute: tair_top, tair_bot, bowen, h, e |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2002 | 2015 | 11/14/2002 | 2045 |
Subject: | SGP/EBBR/E13 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/23/2002 | 0000 | 10/31/2002 | 2130 |
Subject: | SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Perhaps because of excessive bearing wear, the wind speed sensor had a high starting threshhold with wind speeds below about 2 m/s. Wind speed measurements at all speeds were probably too low. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/18/2002 | 1210 | 09/19/2002 | 0245 |
Subject: | SGP/EBBR/E13 - AEM Jung between Home Positions |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | When the AEM (Automatic Exchange Mechanism) is hung inbetween home positions, the gradients of temperature and relative humidity, and thus sensible and latent heat fluxes, are incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2003 | 1905 | 05/01/2003 | 1935 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2003 | 1830 | 05/01/2003 | 2000 |
Subject: | SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2003 | 1800 | 10/02/2003 | 1845 |
Subject: | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 1830 | 10/13/2003 | 1900 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/2003 | 2145 | 12/10/2003 | 0115 |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/2003 | 1730 | 12/14/2003 | 1830 |
Subject: | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/09/2004 | 1125 | 02/09/2004 | 1500 |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2004 | 0130 | 07/14/2004 | 1515 |
Subject: | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM was stuck in the home_15 position or reported near zero home signals during much of the indicated period. The Bowen ratio and latent and sensible heat fluxes were incorrect when the AEM was not operating properly; the periods of incorrect data can be determined from the home signal values. On 7/14/04 the AEM was replaced. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2004 | 0230 | 08/11/2004 | 1824 |
Subject: | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Rain entered the net radiometer through a crack in the upper dome and settled in the bottom dome. This caused too large net radiation measurements during the following daylight hours, until the domes were replaced and dried out the same day. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/08/2004 | 1200 | 09/15/2004 | 1930 |
Subject: | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM failed. Sensible and latent heat fluxes were incorrect, as well as gradient measurements. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2004 | 1830 | 10/28/2004 | 1900 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0510 | 01/08/2005 | 1745 |
01/11/2005 | 0445 | 01/12/2005 | 1310 |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0625 | 01/07/2005 | 1850 |
01/11/2005 | 1545 | 01/12/2005 | 0930 |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/2005 | 1430 | 05/13/2005 | 1900 |
Subject: | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The net radiation daily peak on sunny days occured 1/2 hour after the net radiation peak at E2, E9, and the SIRS because the sensor was tipped to the west about 1/2 degree. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/08/2005 | 1900 | 07/06/2005 | 1630 |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM was stuck in the home 30 position most of this period. Therefore, the sensible and latent heat fluxes are incorrect during most of this period. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2005 | 2030 | 10/12/2005 | 2130 |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM has not been reaching the home_30 position fully a few times a day on most days, resulting in zero home_30 measurements. The sensible and latent heat fluxes are incorrect when the home_30 measurement is near zero. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/2005 | 2230 | 10/05/2005 | 1600 |
Subject: | SGP/EBBR/E13 - Loose connections |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The tair_bot spiked around midday, as if it is temperature related, and may have indicated a loose connection. The sensible and latyent heat fluxes and Bowen ratio were incorrect when this condition occurred. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E13 - metadata corrections |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E13 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 systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2005 | 0900 | 12/20/2005 | 1600 |
12/21/2005 | 0500 | 12/21/2005 | 1830 |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind speed sensor was frozen to a stopped posiiton; wind speed data is incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2006 | 1730 | 01/09/2006 | 0730 |
01/10/2006 | 1330 | 01/10/2006 | 1930 |
02/17/2006 | 2005 | 02/20/2006 | 1030 |
Subject: | SGP/EBBR/E13 - Missing Data |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The Data was missing during these three periods for various reasons. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/22/2006 | 2330 | 01/26/2006 | 2040 |
Subject: | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM hung in one position; flux and gradient measurements were therefore incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/02/2006 | 0330 | 04/05/2006 | 1435 |
Subject: | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer had water in it, making the net radiation and flux measurements suspect; the latter do not appear to be incorrect, but should be considered as suspect anyway. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2006 | 2300 | 04/23/2006 | 2300 |
06/03/2006 | 1900 | 06/04/2006 | 2330 |
Subject: | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat fluxes were incorrect also. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/30/2006 | 2100 | 05/01/2006 | 1530 |
06/05/2006 | 2330 | 06/06/2006 | 1600 |
06/14/2006 | 2030 | 06/15/2006 | 1430 |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM did not function properly, thus sensible and latent heat fluxes were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/01/2006 | 1700 | 07/06/2006 | 2200 |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | There were several half hours during this period when the pressure went offscale or at least to a high value, causing the sensible and latent heat fluxes to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/05/2006 | 1730 | 08/10/2006 | 1730 |
08/23/2006 | 1700 | 08/25/2006 | 1700 |
08/31/2006 | 2030 | 09/01/2006 | 1900 |
Subject: | SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | During this period Soil Heat Flow #3 was sometimes incorrect (large negative); during those times, sensible and latent heat fluxes and average soil heat flux were sometimes (but not always incorrect). |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/22/2006 | 1630 | 08/22/2006 | 1830 |
08/24/2006 | 1530 | 08/24/2006 | 2000 |
08/29/2006 | 0830 | 08/29/2006 | 1200 |
Subject: | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | During spikes in pressure upwards or downwards the sensible and latent heat fluxes were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/28/2006 | 0030 | 08/28/2006 | 0730 |
Subject: | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Most measurements were incorrect during this period because the battery voltage was below 10.5 volts. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/17/2006 | 0700 | 10/23/2006 | 1615 |
Subject: | SGP/EBBR/E13 - Battery failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Data was missing entirely on parts of 10/22 and 10/23. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/02/2006 | 0400 | 09/14/2006 | 1900 |
Subject: | SGP/EBBR/E13 - Radiometer dome broken |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The top net radiometer dome was broken, yielding net radiation, sensible heat flux and latent heat flux that were too low. The BEFLUX (SIRS) net radiation can be used as a replacement for the EBBR net radiation. To correct the sensible and latent heat fluxes, determine the ratio of SIRS net radiation to EBBR net radiation for each daylight half hour and multiply that ratio times H and LE to obtain approximate corrected flux values. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/18/2008 | 1000 | 03/27/2008 | 1930 |
Subject: | SGP/EBBR/E13 - Wind direction failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The EBBR wind direction was stuck at 135 degrees; this reading indicates a failure of the sensor electronics. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 2015 | 01/28/2009 | 2000 |
Subject: | SGP/EBBR/E13 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind speed sensor was stopped by freezing rain. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2010 | 1930 | 07/21/2010 | 1400 |
Subject: | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The multiplexer to which the air temperatures were connected experienced a problem, resulting in incorrect sensible and latent heat fluxes at times. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/21/2010 | 1330 | 10/01/2010 | 2000 |
Subject: | SGP/EBBR/E13 - Net Radiation Too Large |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The EBBR Net Radiation (Rn) values maintained a ~200 Wm^-2 reading because of poor cable lead connections. Sensible and latent heat fluxes were therefore overestimated. Sensible (H) and latent heat (LE) fluxes can be estimated in the following way: H (new) = H/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation] LE (new) = LE/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation] |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/30/2011 | 1500 | 07/15/2011 | 1400 |
Subject: | SGP/EBBR/E13 - Soil temperature #3 offscale |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Temp Sensor 3 data were missing or offscale due to a bad connection. H and LE were not normally affected, as the EBBR program "kicked" out the incorrect temperature measurements before calculating H and LE. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/31/1993 | 1950 | 12/31/1993 | 2100 |
Subject: | SGP/EBBR/E13 - Invalid data during disconnection of AEM at E13 |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | On December 31, 1993 at 1950 GMT the AEM on the Central Facility EBBR was disconnected. Another AEM was then connected, on which some testing was needed before site operations could be confident that it was ready for field installation at an extended facility. At 2041 GMT the original AEM was reconnected. The following 5, 15, and 30 minute data between or for the stated times below is invalid: 5 minute (1950 to 2045 GMT): tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, home 15 minute (2000 to 2045 GMT): rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, mv_home, tair_r, tair_l 30 minute (2000 through 2100 GMT): tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, bowen, e, h, home_15, home_30 |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/06/1994 | 1515 | 05/06/1994 | 1600 |
Subject: | SGP/EBBR/E13 - SM4 Replacement |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Moisture Probe #4 has been indicating large soil moistures in the past couple of months. At times the values have exceeded the upper limit of the acceptable range. This data could be considered questionable, although the affect on average soil moisture and quantities affected by it is very small. Therefore, I do not suggest additional flagging of the data other than that imposed by the limits. The probe was changed from S/N 92004 to 93004 on May 6, 1994 at 1530 GMT. During the exchange process a few selected periods of soil moisture #4 data is incorrect, but not so different from the other soil moisture probes as to have a significant affect on the average soil moisture or the fluxes. Additionally, the EBBR output was interrupted for a half hour while the calibration of the new probe was entered into the CR10 data logger. Therefore, all 5 minute data from 1535 to 1600 GMT, 15 minute data for 1545 and 1600 GMT, and 30 minute data for 1600 GMT is incorrect. Furthermore, disturbance of the area near the #4 soil probes (temperature, soil moisture, and heat flux) caused all three to be incorrect for the following periods: 30 minute 1530 GMT 15 minute 1515 and 1530 GMT 5 minute 1515, 1520, 1525, and 1530 GMT. Complete recovery by all three sensors did not occur for one day (which is fairly typical for near surface installations), although the differences from the other four sets of soil sensors did not deleteriously affect the averages of the soil quantities. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/1994 | 2300 | 10/14/1994 | 1900 |
Subject: | SGP/EBBR/E13 - Soil Temperature Aberations |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | For a period of not quite a day, soil temperature probe #4 indicated values that were either too high or too low, for unknown reasons. After Site Operations personnel checked connectors and the probe itself, it recovered to proper values. The probe has functioned properly since then. The times and incorrect data fields are listed below. 15 minute: rr_ts4, 10/13/94: 2245 GMT; 10/14/94: 0000, 0200, 0230, 0515, 0600, 0630, 1300-1500, 1530-1715, 1815, 1845 GMT 30 minute: ts4, 10/13/94: 2300 GMT; 10/14/94: 0000, 0230, 0530-0630, 1300-1700, 1830-1900 GMT ces4, g4, ave_shf, e, h, 10/14/94: 0030, 0200-0230, 0600-0630, 1300-1900 GMT |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/02/1994 | 1937 | 12/02/1994 | 2000 |
Subject: | SGP/EBBR/E13 - Net Radiation - Hemisphere Replacement |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The upper hemisphere of the net radiometer was punctured (pinhole) and thus was replaced at 1937 GMT on December 2, 1994. This resulted in a spike in the net radiation data. 5 minute q data for 1935, 1940, 1945, and 1955 GMT, 15 minute mv_q data for 1945 and 2000 GMT, and 30 minute q, e, and h data for 2000 GMT are incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/1994 | 1630 | 12/18/1994 | 1930 |
12/19/1994 | 0000 | 12/19/1994 | 1600 |
12/20/1994 | 0200 | 12/20/1994 | 0400 |
12/23/1994 | 0830 | 12/23/1994 | 2030 |
12/24/1994 | 0800 | 12/25/1994 | 0100 |
12/25/1994 | 0200 | 12/25/1994 | 1400 |
12/25/1994 | 1500 | 12/25/1994 | 1600 |
12/25/1994 | 1700 | 12/26/1994 | 1800 |
12/27/1994 | 0200 | 12/27/1994 | 1700 |
12/30/1994 | 1730 | 12/30/1994 | 1800 |
12/13/1994 | 0430 | 12/13/1994 | 0500 |
12/13/1994 | 1800 | 12/13/1994 | 1830 |
12/18/1994 | 0900 | 12/18/1994 | 1030 |
Subject: | SGP/EBBR/E13 - Incorrect Soil Temperature #4 |
DataStreams: | sgp30ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | For periods of a number of days in December 1994, soil temperature probe #4 indicated incorrect values that were either too high or too low. Site Operations personnel replaced the sensor on December 30, 1994. The times and incorrect data fields are listed below. Only half hour times are listed. The incorrect data on December 30 was the result of the process of replacing the sensor during that time. Data Fields: 15 minute: rr_ts4 30 minute: ts4, ces4, g4, ave_shf, e, h Dates and Times (GMT): 12/13/94 0500, 1830 12/18/94 0900-1030, 1630-1930 12/19/94 0000-1600 12/20/94 0200-0400 12/23/94 0830-2030 12/24/94 0800-2330 12/25/94 0000-0100, 0200-1400, 1530, 1600, 1700-2330 12/26/94 0000-1800 12/27/94 0200-1700 12/30/94 1730-1800 Recomputation of the change in energy storage in the soil could be done roughly from the soil temperature sensors that were still working (roughly because the difference in soil temperature with time is determined with real-time (one minute samples) data, not from the 15 or 30 minute data). However, this would require considerable effort. The process for doing so is therefore not stated here. Contact the mentor for more information if neccesary. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/14/1995 | 1100 | 02/14/1995 | 1730 |
Subject: | SGP/EBBR/E13 - Frozen Wind Speed Sensor |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | DQR No: Platform: EBBR Subject: Frozen Wind Speed Sensor Date Submitted: JUNE 22, 1995 Submitted By: _x_ Instrument Mentor ___ EST Member ___ Science Team Member ___ Other _____________________________ For questions or problems, please contact the ARM Experiment Center at 509-375-6898 or via email at dqr@arm.gov. Platform/Measurement: EBBR/ Wind Speed What level data: (raw,a0,a1,b1,c1 etc): a1 (15 and 30 minute) a0 (5 minute) What location was the data collected at: E13, Central Facility Period of time in question Begin Date 2/14/95 Time 1100 GMT End Time 1730 GMT Data should be labeled: ___ questionable ___ All data fields affected _X_ incorrect _X_ Only some data fields affected ___ wrong calibration ___ others Discussion of Problem: On February 14, 1995 a frontal system deposited freezing rain in central Oklahoma that resulted in the EBBR wind speed instrument becoming frozen in place at the Central Facillity (E13) for part of a day. All 5, 15, and 30 minute data values indicated below are incorrect for the period listed above. 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws Other observations/measurements impacted by this problem: Suggested Corrections of the Problem: (e.g. change calibration factor and recompute, flag data with this comment, etc.) Flag data with this comment. Data Processing Notes Date ------------------------------------------------------------------- END |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/1995 | 0245 | 03/08/1995 | 1640 |
Subject: | SGP/EBBR/E13 - Frozen Wind Speed Sensor |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | On March 7, 1995 freezing rain stopped the cups of the EBBR wind speed instrument at the Central Facility (E13). All 5, 15, and 30 minute data values indicated below are incorrect for the period listed above. 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/17/1995 | 1400 | 02/22/1995 | 1500 |
Subject: | SGP/EBBR/E13 - Reprocess: Soil Temperature Malfunction |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | For several days, soil temperature probe #4 indicated values that were either too high or too low, for unknown reasons. After Site Operations personnel checked connections, it recovered to proper values. Affected quantities are shown below. 15 minute: rr_ts4 30 minute: ts4, ces4, g4, ave_shf, e, h Sensible, latent, and soil heat fluxes need to be recalculated using the change in energy storage of probes 1-3 and 5, as follows. ave_shf = (g1 + g2 + g3 + g5)/4 e = -(q + ave_shf)/(1 +bowen) h = -(e + ave_shf +q) |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/16/1995 | 0600 | 08/16/1995 | 1530 |
08/18/1995 | 1230 | 08/18/1995 | 1500 |
08/19/1995 | 1100 | 08/19/1995 | 1500 |
08/20/1995 | 0900 | 08/20/1995 | 1500 |
08/21/1995 | 0600 | 08/21/1995 | 1500 |
Subject: | SGP/EBBR/E13 - Battery Voltage Drop |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Sometime before August 16, 1995 the AC/DC converter was switched off and the instrument heaters were switched on. The solar panel was not able to keep the battery voltage up under these conditions. Much of the data for the periods indicated is incorrect, especially data from the sensors that require 12 volts DC power. The data would have to be inspected to determine what data is correct and what is incorrect. It would be safest to exclude all data from those periods from any analysis. Site operations switched the heaters off and turned the converter back on on August 21, 1995. As reported in a recent DQR, the fluxes from the EBBR are incorrect presently because of a malfunctioning T/RH probe; no spares are presently available. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/26/1995 | 0000 | 11/03/1995 | 2045 |
Subject: | SGP/EBBR/E13 - Wind Direction Set Pin Slippage |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | The set pin bolt on the wind vane loosened, allowing the vane to turn on the shaft. Wind directions are incorrect as a result, for the period listed above. The bolt was tightened on 3 Nov 95 so that correct wind directions would result. Values that are incorrect for the period are: 5 minute: wind_d, res_ws, sigma_wd 15 minute: mv_wind_d 30 minute: wind_d, res_ws, sigma_wd |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/1995 | 1200 | 11/04/1995 | 1400 |
11/05/1995 | 0330 | 11/05/1995 | 1430 |
11/06/1995 | 0000 | 11/06/1995 | 1530 |
11/07/1995 | 0000 | 11/07/1995 | 1400 |
11/08/1995 | 0000 | 11/08/1995 | 1400 |
Subject: | SGP/EBBR/E13 - Battery voltage drop |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | On Friday 2 November, 1995 the instrument heaters were switched on. By 4 November, the solar panel was not able to maintain the battery voltage for the cold night conditions that existed. On Monday, 5 November the heaters were turned off, but the poor condition of the battery did not allow it, once partially drained, to recharge sufficiently for nighttime conditions. On 8 November, at 2106 GMT, the battery was replaced (resulting in missing data for 2030-2130 GMT). Most of the data for the period above is incorrect, especially data from the sensors that require at least 11 volts DC power. The data that is incorrect is listed below. 5 minute: tref, tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, q, pres, home 15 minute: rr_thum_r, rr_thum_l, rr_ts1, rr_ts2, rr_ts3, rr_ts4, rr_ts5, rr_tref, mv_hum_r, mv_hum_l, mv_pres, mv_home, mv_q, mv_hft1, mv_hft2, mv_hft3, mv_hft4, mv_hft5, tair_r, tair_l 30 minute: tair_top, tair_bot, tref, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, pres, home_15, home_30, bowen, e, h, shf, shf1, shf2, shf3, shf4, shf5, c_shf1, c_shf2, c_shf3, c_shf4, c_shf5, ts1, ts2, ts3, ts4, ts5, q, g1, g2, g3, g4, g5, ces1, ces2, ces3, ces4, ces5 Periods of time affected (these are the 30 minute periods that are incorrect - incorrect 5 and 15 minute data may also occur for all or part of the previous half hour): 4 Nov 95: 1200-1400 GMT 5 Nov 95: 0330-1430 GMT 6 Nov 95: 0000-1530 GMT 7 Nov 95: 0000-1400 GMT 8 Nov 95: 0000-1400 GMT |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/1995 | 0530 | 12/09/1995 | 1415 |
12/13/1995 | 0400 | 12/13/1995 | 1800 |
12/13/1995 | 2300 | 12/14/1995 | 1430 |
12/15/1995 | 0745 | 12/15/1995 | 1515 |
Subject: | SGP/EBBR/E13 - battery voltage drop |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The E13 battery condition was such that the solar panel was not able to keep the battery voltage up (greater than 11 V DC) under cloudy conditions. The data for the periods above is incorrect; many sensors require at least 11 volts DC power. On 15 December 1995 at 1900 GMT the EBBR lost it's connection to the site data system; data after this period will be discussed in a separate DQR. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/1995 | 0000 | 03/22/1996 | 1815 |
Subject: | SGP/EBBR/E13 - Battery Voltage High |
DataStreams: | sgp15ebbrE13.b1 |
Description: | Beginning in late December 1995, the battery voltage at E13 EBBR rose above 15 volts at times, and reached more than 17 volts at times by early February 1996. The qc flag for voltage (17 V) was exceeded in February and automatically reported in the site operations log. However, no effect on the data has occurred. The flag serves to alert the mentor and site operations that there is a problem. Damage to the CR10 datalogger and the sensors may begin to occur at 17 to 18 volts. The solar panel (used to charge the EBBR batteries) regulator is designed to limit voltage output to the battery, and thus the battery voltage, to 14.5 V. The solar panel regulator was changed in the EBBR system. Regulator failure is almost always the cause of this problem. Note: The end date for this DQR was provided by the mentor at a later time. |
Measurements: | sgp15ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/02/1996 | 0000 | 03/22/1996 | 1830 |
Subject: | SGP/EBBR/E13 - Solar Panel Voltage Regulator malfunction |
DataStreams: | sgp15ebbrE13.b1 |
Description: | In early February 1996 the battery voltage began to exceed the solar panel voltage regulator limit of 14.5 volts during peak solar radiation. This indicated a malfunction in the regulator. Eventually, the battery voltage level rose to 17 volts occasionally. No data was affected. The regulator was replaced on February 22, 1996 and battery voltage levels returned to normal. |
Measurements: | sgp15ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/06/1996 | 1755 | 05/06/1996 | 1835 |
Subject: | SGP/EBBR/E13 - 3-month check |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/20/1996 | 0700 | 08/30/1996 | 1830 |
Subject: | SGP/EBBR/E13 - Wind Direction Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | Wind direction was incorrect during the period indicated due to a sensor electronics failure. On 30 August 1996 site operations replaced S/N K3035 with S/N K3034. Correct data collection resumed. Values that are incorrect for the period are: 5 minute: wind_d, res_ws, sigma_wd 15 minute: mv_wind_d 30 minute: wind_d, res_ws, sigma_wd |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/18/1996 | 1942 | 11/18/1996 | 2022 |
Subject: | SGP/EBBR/E13 - EBBR 3 Month Checks - 10 EFs |
DataStreams: | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/1997 | 0530 | 02/07/1997 | 1340 |
Subject: | SGP/EBBR/E13 - Frozen Wind Speed Sensor |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1 |
Description: | On February 7, 1997 freezing rain stopped the cups of the EBBR wind speed instrument at the Central Facility (E13). All 5, 15, and 30 minute data values indicated below are incorrect for the period listed. 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1997 | 0930 | 07/25/1997 | 1600 |
Subject: | SGP/EBBR/E13 - CR10 Malfunction |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The CR10 apparently malfunctioned on 17 July 1997. This caused a variety of effects, including incorrect datalogger clock times, missing data periods, and some corrupted data fields. The CR10 was replaced on 25 July 1997; all data fields are now correct. Data users may contact the mentor for more detailed information on data quality during this period. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/28/1997 | 1419 | 04/28/1997 | 1445 |
Subject: | SGP/EBBR/E13 - EBBR Biannual Checks |
DataStreams: | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0625 | 01/05/1998 | 0115 |
Subject: | SGP/EBBR/E13- EBBR Frozen Wind Speed |
DataStreams: | sgp5ebbrE13.b1, sgp30ebbrE13.b1, sgp15ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0745 | 01/16/1998 | 1600 |
Subject: | SGP/EBBR/E13 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) |
DataStreams: | sgp15ebbrE13.b1, sgp5ebbrE13.b1, sgp30ebbrE13.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: Note: Mentor supplied the end date/time for this DQR after submittal |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/15/1998 | 1015 | 01/15/1998 | 1445 |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/1997 | 1850 | 10/10/1997 | 1932 |
Subject: | SGP/EBBR/E13 - 3-Month Check |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/1998 | 2000 | 05/07/1998 | 2030 |
Subject: | SGP/EBBR/E13 - Six Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/02/1998 | 0345 | 10/08/1998 | 1930 |
Subject: | SGP/EBBR/E13 - Net Radiation Incorrect - Water in Bottom Dome |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Water entered the net radiometer top dome through a hole made, probably, by migrating birds (this happens every Spring and Autumn) and accumulated in the bottom dome. This causes nighttime net radiations to be too large and daytime net radiations to be too small. The data is therefore incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 0015 | 12/24/1998 | 1730 |
01/01/1999 | 1515 | 01/01/1999 | 2230 |
01/08/1999 | 0205 | 01/08/1999 | 1600 |
Subject: | SGP/EBBR/E13 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1999 | 1515 | 01/01/1999 | 2230 |
Subject: | SGP/EBBR - EBBR E13 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
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: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 0205 | 01/08/1999 | 1600 |
Subject: | SGP/EBBR - EBBR E13 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp5ebbrE13.00 |
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: | sgp5ebbrE13.00:
sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/13/1999 | 2330 | 03/14/1999 | 0500 |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Wind speed and residual wind speed during this period are incorrect caused by an ice storm. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|