DQR ID | Subject | Data Streams Affected |
---|---|---|
D031031.4 | SGP/EBBR/E12 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D031124.12 | SGP/EBBR/E12 - Pressure Sensor Measurement Scales With Battery Voltage | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D031204.9 | SGP/EBBR/E12 - 6 Month Checks | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D031217.4 | SGP/EBBR/E12 - Pressure Sensor Measurement Scales With Battery Voltage | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
D031222.15 | SGP/EBBR/E12 - Wind Speed Sensor Frozen By Ice Storm | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D040304.10 | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D040615.3 | SGP/EBBR/E12 - Incorrect Times | sgp15ebbrE12.b1, sgp30baebbrE12.c1, sgp30ebbrE12.b1, sgp5ebbrE12.b1, sgpebbrE12.00 |
D041222.11 | SGP/EBBR/E12 - 6 Month Checks | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D041222.2 | SGP/EBBR/E12 - AEM home_15 Incorrect, Flux Measurements not affected | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D050206.9 | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D050207.5 | SGP/EBBR/E12 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D050215.16 | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D050215.17 | SGP/EBBR/E12 - Wind Direction Frozen Stopped By Ice | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D050304.1 | SGP/EBBR/E12 - Wind Speed and Direction Frozen by Ice Storm | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D051111.10 | SGP/EBBR/E12 - metadata corrections | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
D060111.5 | SGP/EBBR/E12 - Sensible and Latent Heat Fluxes Incorrect at Times | sgp15ebbrE12.b1, sgp30ebbrE12.b1 |
D060111.8 | SGP/EBBR/E12 - Multiplexer failure | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/14/2003 | 0130 | 10/14/2003 | 1800 |
Subject: | SGP/EBBR/E12 - Water in Net Radiometer, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 11/26/2003 | 2300 |
Subject: | SGP/EBBR/E12 - Pressure Sensor Measurement Scales With Battery Voltage |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | The barometer output was scaling with supply voltage (i.e. it followed the charging of the battery by the solar panel). NOTE: The barometer was replaced later than the end date of this DQR. Why the problem ended on 26 Nov 2003 is unclear; there was no site ops intervention on that date. The problem did not affect the sensible and latent heat flux calculations beyond the expected system error. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2003 | 1750 | 10/28/2003 | 1845 |
Subject: | SGP/EBBR/E12 - 6 Month Checks |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/2003 | 1500 | 10/12/2003 | 2355 |
Subject: | SGP/EBBR/E12 - Pressure Sensor Measurement Scales With Battery Voltage |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
Description: | The barometer output scaled with supply voltage (it followed the charging of the battery by the solar panel). The problem did not affect the sensible and latent heat flux calculations beyond the expected system error. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.a1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/2003 | 2235 | 12/10/2003 | 1705 |
Subject: | SGP/EBBR/E12 - Wind Speed Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/02/2004 | 0945 | 02/02/2004 | 1820 |
02/09/2004 | 1215 | 02/09/2004 | 1430 |
Subject: | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/19/2004 | 2212 | 03/10/2004 | 2247 |
Subject: | SGP/EBBR/E12 - Incorrect Times |
DataStreams: | sgp15ebbrE12.b1, sgp30baebbrE12.c1, sgp30ebbrE12.b1, sgp5ebbrE12.b1, sgpebbrE12.00 |
Description: | The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgpebbrE12.00:
sgp30baebbrE12.c1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/12/2004 | 1630 | 10/12/2004 | 1700 |
Subject: | SGP/EBBR/E12 - 6 Month Checks |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/12/2004 | 1545 | 10/27/2004 | 0645 |
Subject: | SGP/EBBR/E12 - AEM home_15 Incorrect, Flux Measurements not affected |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | The home_15 measurement was incorrect during much of the stated period. The AEM was exchanging however, and thus the flux measurements were not affected. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0735 | 01/08/2005 | 1700 |
Subject: | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0935 | 01/08/2005 | 1630 |
Subject: | SGP/EBBR/E12 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/2005 | 1040 | 01/11/2005 | 0755 |
Subject: | SGP/EBBR/E12 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/2005 | 1040 | 01/12/2005 | 0410 |
Subject: | SGP/EBBR/E12 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/25/2005 | 0430 | 02/25/2005 | 1130 |
Subject: | SGP/EBBR/E12 - Wind Speed and Direction Frozen by Ice Storm |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | The wind speed and direction sensors were frozen by ice from and ice storm. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E12 - metadata corrections |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E12 data collected by ARM back to the installation of the instrument in August 1993. 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: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/27/2005 | 1730 | 01/02/2006 | 2330 |
Subject: | SGP/EBBR/E12 - Sensible and Latent Heat Fluxes Incorrect at Times |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1 |
Description: | Large spikes in soil temperature #2 are causing the soil heat storage term to blow up, and thus the average soil heat flow, sensible heat flux, and latent heat flux to be incorrect at times. |
Measurements: | sgp15ebbrE12.b1:
sgp30ebbrE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/08/2005 | 1100 | 12/08/2005 | 1300 |
Subject: | SGP/EBBR/E12 - Multiplexer failure |
DataStreams: | sgp15ebbrE12.b1, sgp30ebbrE12.b1, sgp5ebbrE12.b1 |
Description: | Sensible and latent heat fluxes are incorrect during a period when multiplexer #2 experienced a failure. |
Measurements: | sgp15ebbrE12.b1:
sgp5ebbrE12.b1:
sgp30ebbrE12.b1:
|