DQR ID | Subject | Data Streams Affected |
---|---|---|
D020716.14 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D020717.20 | SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D020717.21 | SGP/EBBR/E18 - AEM Hung | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D020717.22 | SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D020717.23 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D020717.24 | SGP/EBBR/E18 - Left Air Temperature Incorrect | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D020717.25 | SGP/EBBR/E18 - Reference Temperature Incorrect | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D021113.1 | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
D030110.23 | SGP/EBBR/E18 - Data Incorrect during 6 month checks | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D030115.10 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D030115.11 | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D030115.12 | SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D030115.13 | SGP/EBBR/E18 - Data Incorrect After Logger Restart | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D030115.14 | SGP/EBBR/E18 - Water in Net Radiometer Dome | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D030117.24 | SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
D030711.22 | SGP/EBBR/E18 - AEM Hung | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D030712.19 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D030919.9 | SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
D031204.16 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040206.1 | SGP/EBBR/E18 - AEM Sitting At Home 15 Position | sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040304.17 | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040304.18 | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040505.3 | SGP/EBBR/E18 - Pressure Low | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D040723.4 | SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs | sgp30ebbrE18.b1 |
D040813.6 | SGP/EBBR/E18 - Soil Temperature #2 Incorrect | sgp30ebbrE18.b1 |
D050719.11 | SGP/EBBR/E18 - Improved EBBR CR10 Program | sgp30ebbrE18.b1 |
D051111.13 | SGP/EBBR/E18 - metadata corrections | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/30/2002 | 2000 | 04/30/2002 | 2031 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2001 | 0000 | 03/29/2002 | 1631 |
Subject: | SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Version 6 of the CR10 program produced noisy latent and sensible heat fluxes. That ended on March 29 after a recalibration unit was installed with version 8. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2001 | 1945 | 11/14/2001 | 2001 |
11/25/2001 | 0215 | 11/25/2001 | 1901 |
11/28/2001 | 1145 | 11/28/2001 | 1501 |
11/29/2001 | 0745 | 11/29/2001 | 0931 |
11/29/2001 | 1415 | 11/30/2001 | 0431 |
12/02/2001 | 0145 | 12/02/2001 | 0201 |
12/03/2001 | 0045 | 12/03/2001 | 0101 |
12/24/2001 | 2015 | 12/24/2001 | 2031 |
12/25/2001 | 1915 | 12/25/2001 | 2031 |
01/18/2002 | 0115 | 01/18/2002 | 0201 |
01/22/2002 | 1615 | 01/22/2002 | 1631 |
01/24/2002 | 2115 | 01/24/2002 | 2131 |
01/28/2002 | 1345 | 01/28/2002 | 1401 |
02/13/2002 | 2215 | 02/14/2002 | 0801 |
02/25/2002 | 2345 | 02/26/2002 | 0001 |
03/14/2002 | 1515 | 03/29/2002 | 1831 |
04/06/2002 | 0030 | 04/17/2002 | 1401 |
04/18/2002 | 2230 | 04/30/2002 | 2031 |
05/01/2002 | 0300 | 05/28/2002 | 2031 |
Subject: | SGP/EBBR/E18 - AEM Hung |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The automatic exchange mechanism did not work properly for a number of time periods. The Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this condition. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/29/2002 | 1815 | 03/29/2002 | 2131 |
Subject: | SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | The soil heat flows were incorrect while the EBBR changeout was being done. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/20/2002 | 0600 | 05/20/2002 | 2001 |
05/21/2002 | 0430 | 05/21/2002 | 1731 |
05/22/2002 | 1130 | 05/22/2002 | 1631 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Soil Heat Flow 1 was incorrect during the indicated periods. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g2 + g3 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/09/2002 | 1900 | 05/14/2002 | 1846 |
Subject: | SGP/EBBR/E18 - Left Air Temperature Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The left air temperature was incorrect much of the time, causing the Bowen ratio, sensible heat flux, and latent heat flux to be incorrect also. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/17/2002 | 1430 | 04/17/2002 | 1431 |
Subject: | SGP/EBBR/E18 - Reference Temperature Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The reference temperature was incorrect during the checks of the left air temperature sensor, leading to all gradient measurements, Bowen ratio, sensible heat flux, latent heat flux, soil temperature, and soil moisture measurements being incorrect. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 06/18/2003 | 2359 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. |
Measurements: | sgp30ebbrE8.b1:
sgp30ebbrE4.b1:
sgp30ebbrE9.b1:
sgp30ebbrE18.b1:
sgp30ebbrE26.b1:
sgp30ebbrE13.b1:
sgp30ebbrE7.b1:
sgp30ebbrE12.b1:
sgp30ebbrE19.b1:
sgp30ebbrE20.b1:
sgp30ebbrE22.b1:
sgp30ebbrE2.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2002 | 2215 | 11/25/2002 | 2245 |
Subject: | SGP/EBBR/E18 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/08/2002 | 1800 | 07/19/2002 | 1430 |
08/20/2002 | 2100 | 08/26/2002 | 0300 |
09/01/2002 | 2100 | 11/12/2002 | 2130 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #1 measurements were 2X to offscale high during these periods. See below for a work-around. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/2002 | 2000 | 07/26/2002 | 2030 |
07/27/2002 | 0300 | 07/30/2002 | 2000 |
08/03/2002 | 0130 | 08/06/2002 | 2030 |
08/07/2002 | 0200 | 08/09/2002 | 1900 |
08/12/2002 | 0130 | 08/17/2002 | 2030 |
08/17/2002 | 2130 | 08/19/2002 | 1830 |
Subject: | SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #4 measurements were 2X or offscale high during this period when compared with the other soil heat flow measurements. See below for a work-around. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2002 | 2200 | 11/12/2002 | 2229 |
Subject: | SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 11/12/02 occurred after replacement of soil heat flow #1. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2002 | 2230 | 11/12/2002 | 2259 |
Subject: | SGP/EBBR/E18 - Data Incorrect After Logger Restart |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Because soil temperature measurements were not available from the beginning of the half hour, the change in soil energy storage could not be calculated and thus is incorrect. There is no fix to this problem. Average Soil Heat Flow, Sensible Heat Flux (h), and Latent Heat Flux (e) can not be calculated using the available, remaining measurements. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2002 | 1400 | 10/15/2002 | 2030 |
Subject: | SGP/EBBR/E18 - Water in Net Radiometer Dome |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/19/2002 | 1430 | 07/20/2002 | 2000 |
07/26/2002 | 2030 | 07/27/2002 | 0300 |
07/30/2002 | 2000 | 08/03/2002 | 0130 |
08/06/2002 | 2030 | 08/07/2002 | 0200 |
08/09/2002 | 1900 | 08/12/2002 | 0130 |
08/17/2002 | 2030 | 08/17/2002 | 2130 |
08/19/2002 | 1830 | 08/20/2002 | 2100 |
Subject: | SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High |
DataStreams: | sgp30ebbrE18.a1, sgp30ebbrE18.b1 |
Description: | Soil Heat Flow #1 and #4 measurements were 2X to offscale high during these periods. See suggestions for a work-around. |
Measurements: | sgp30ebbrE18.b1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2003 | 2145 | 04/01/2003 | 2200 |
Subject: | SGP/EBBR/E18 - AEM Hung |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The AEM was hung inbetween home positions, causing many measurements to be incorrect. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/15/2003 | 2120 | 04/15/2003 | 2215 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/30/2003 | 1500 | 09/02/2003 | 2100 |
Subject: | SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp5ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2003 | 2225 | 10/28/2003 | 2315 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2004 | 1915 | 04/13/2004 | 2045 |
Subject: | SGP/EBBR/E18 - AEM Sitting At Home 15 Position |
DataStreams: | sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | After replacement of the AEM on 1/26/04, it exchanged briefly, then sat at the home 15 position until another replacement was available. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
sgp30baebbrE18.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2004 | 0140 | 01/28/2004 | 0305 |
02/05/2004 | 0145 | 02/05/2004 | 0520 |
Subject: | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2004 | 0140 | 01/28/2004 | 0305 |
Subject: | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/19/2004 | 0500 | 06/13/2004 | 1700 |
Subject: | SGP/EBBR/E18 - Pressure Low |
DataStreams: | sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Pressure readings suddenly dropped to unrealistic levels. Sensible Heat Flux was underestimated and Latent Heat Flux was overestimated because of this problem. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/28/2004 | 1300 | 07/28/2004 | 1500 |
Subject: | SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil moisture #1 and soil temperature #1 occasionally spiked at the same time. Little sensible and latent heat flux data were affected. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2004 | 1830 | 07/06/2004 | 2100 |
Subject: | SGP/EBBR/E18 - Soil Temperature #2 Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Soil Temperature #2 was incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux are incorrect, as a result. |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/30/2005 | 0000 |
Subject: | SGP/EBBR/E18 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Effective 20050330.0000, the EBBR.E18 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050330, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE18.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE18.a1). |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E18 - metadata corrections |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E18 data collected by ARM back to the installation of the instrument in July 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
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