DQR ID | Subject | Data Streams Affected |
---|---|---|
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 |
D030712.17 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1 |
D030919.8 | SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrect | sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1 |
D031031.5 | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1 |
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 |
D040304.13 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice | 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 | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050622.1 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050624.7 | SGP/EBBR/E13 - Improved EBBR CR10 Program | sgp30ebbrE13.b1 |
D051104.3 | SGP/EBBR/E13 - Loose connections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051106.24 | SGP/EBBR/E13 - Average Soil Heat Flux Incorrect | sgp30ebbrE13.b1 |
D051111.11 | SGP/EBBR/E13 - metadata corrections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 06/18/2003 | 2359 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. |
Measurements: | 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 |
---|---|---|---|
05/01/2003 | 1905 | 05/01/2003 | 1935 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp15ebbrE13.a1:
sgp5ebbrE13.a1:
sgp30ebbrE13.b1:
sgp30ebbrE13.a1:
|
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.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp15ebbrE13.a1:
sgp30ebbrE13.b1:
sgp5ebbrE13.a1:
sgp30ebbrE13.a1:
|
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.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.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: | sgp15ebbrE13.b1:
sgp15ebbrE13.a1:
sgp30ebbrE13.b1:
sgp5ebbrE13.a1:
sgp30ebbrE13.a1:
|
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 |
---|---|---|---|
02/02/2004 | 0040 | 02/03/2004 | 1810 |
02/09/2004 | 1125 | 02/09/2004 | 1500 |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice |
DataStreams: | 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: | 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: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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 |
---|---|---|---|
04/01/2001 | 0000 | 03/31/2005 | 2100 |
Subject: | SGP/EBBR/E13 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE13.b1 |
Description: | Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050331, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE13.a1). |
Measurements: | 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 |
---|---|---|---|
03/03/2005 | 2130 | 03/31/2005 | 2100 |
Subject: | SGP/EBBR/E13 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day. |
Measurements: | 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:
|