DQR ID | Subject | Data Streams Affected |
---|---|---|
D031110.8 | SGP/EBBR/E19 - Battery Voltage Too Low, Most Measurements Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031117.2 | SGP/EBBR/E19 - AEM Stuck In One Position, Surface Fluxes Incorrect | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D031204.18 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040106.1 | SGP/EBBR/E19 - Wind Speed Sensor Frozen Stopped by Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040206.4 | SGP/EBBR/E19 - Low Battery Voltage Caused Incorrect Data | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040304.26 | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040407.2 | SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient | sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D040608.7 | SGP/EBBR/E19 - AEM Hung Inbetween Home Positions | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D041222.15 | SGP/EBBR/E19 - 6 Month Checks | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050206.13 | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050207.9 | SGP/EBBR/E19 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050215.20 | SGP/EBBR/E19 - Wind Speed Constant | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050324.2 | SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D050624.3 | SGP/EBBR/E19 - Net Radiation Incorrect - Cable Chewed by Rodents | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
D051112.1 | SGP/EBBR/E19 - metadata corrections | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/03/2003 | 2000 | 11/13/2003 | 1615 |
Subject: | SGP/EBBR/E19 - Battery Voltage Too Low, Most Measurements Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Battery voltage dropped below levels required to sustain the production of valid data. The AC charger unit had failed. This prevented charging of the battery during the night and prevented the solar panel regulator from properly charging the battery during the day. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2003 | 2115 | 11/26/2003 | 1600 |
Subject: | SGP/EBBR/E19 - AEM Stuck In One Position, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The AEM home 15 and 30 outputs were both 40 mv because the AEM was not exchanging. Sensible and Latent Heat Fluxes are therefore incorrect. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/16/2003 | 1500 | 10/16/2003 | 1530 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/12/2003 | 1825 | 12/12/2003 | 2000 |
Subject: | SGP/EBBR/E19 - Wind Speed Sensor Frozen Stopped by Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. It is not known how long this condition existed, as data is missing for more than 10 days after the end of the stated period. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/2004 | 1600 | 01/22/2004 | 1530 |
Subject: | SGP/EBBR/E19 - Low Battery Voltage Caused Incorrect Data |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Battery voltage less than 10.5 V caused much data to be questionable or incorrect. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2004 | 2120 | 02/02/2004 | 1910 |
Subject: | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/05/2004 | 1700 | 04/15/2004 | 1530 |
Subject: | SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient |
DataStreams: | sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiometer coefficient installed on 2/5/04 for nighttime (negative voltage calibration) was incorrect. Negative net radiations during the subject period can be multiplied by 0.9419 to get corrected net radiation measurements. The sensible (H) and latent heat (LE) fluxes (which are very small at night anyway) can be recalculated using the following equations (where B is Bowen ratio, Rn is corrected net radiation, and G is soil heat flow): LE = -(Rn + G)/(B + 1) H = -(Rn + G + LE) |
Measurements: | sgp5ebbrE19.b1:
sgp30baebbrE19.c1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/29/2004 | 2215 | 06/10/2004 | 1510 |
Subject: | SGP/EBBR/E19 - AEM Hung Inbetween Home Positions |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The AEM hung inbetween home positions, producing a home signal of zero. Sensible and latent heat fluxes during this period are incorrect. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2004 | 1430 | 10/28/2004 | 1500 |
Subject: | SGP/EBBR/E19 - 6 Month Checks |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0655 | 01/07/2005 | 1545 |
Subject: | SGP/EBBR/E19 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 1115 | 01/06/2005 | 2055 |
Subject: | SGP/EBBR/E19 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/29/2005 | 0930 | 01/29/2005 | 1300 |
Subject: | SGP/EBBR/E19 - Wind Speed Constant |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | Wind Speed was constant at 5 m/s during this period; the reason is unknown. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/05/2004 | 1700 | 03/05/2005 | 1730 |
Subject: | SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations |
DataStreams: | sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The calibration for negative net radiation was incorrectly entered in the datalogger program. |
Measurements: | sgp5ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2005 | 2300 | 05/12/2005 | 1445 |
Subject: | SGP/EBBR/E19 - Net Radiation Incorrect - Cable Chewed by Rodents |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | The net radiation measurement was incorrect after the net radiometer cable was chewed by rodents. Sensible and latent heat fluxes were therefore incorrect. |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E19 - metadata corrections |
DataStreams: | sgp15ebbrE19.b1, sgp30ebbrE19.b1, sgp5ebbrE19.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E19 data collected by ARM back to the beginning of the data set in May 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp5ebbrE19.b1:
sgp15ebbrE19.b1:
sgp30ebbrE19.b1:
|