DQR ID | Subject | Data Streams Affected |
---|---|---|
D030530.3 | SGP/EBBR/E27 - E27 EBBR Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR | sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
D030711.2 | SGP/EBBR/E27 - Soil Heat Flow #2 Incorrect | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
D030711.3 | SGP/EBBR/E27 - Soil Heat Flow #4 Incorrect | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
D030711.4 | SGP/EBBR/E27 - Reference T Sensor Failure | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
D030711.5 | SGP/EBBR/E27 - Wind Direction Hung | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
D030712.24 | SGP/EBBR/E27 - 6 Month Checks | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
D030728.5 | SGP/EBBR/E27 - Soil Heat Flow #1 Large | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
D030728.6 | SGP/EBBR/E27 - Incorrect Data From Logger Restart | sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
D050719.16 | SGP/EBBR/E27 - Improved EBBR CR10 Program | sgp30ebbrE27.b1 |
D071001.1 | SGP/EBBR/E26 - Sensible and Latent Heat Fluxes Affected by bad temp sensor | sgp15ebbrE26.b1, sgp30ebbrE26.b1, sgp5ebbrE26.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2003 | 1030 | 06/18/2003 | 2359 |
Subject: | SGP/EBBR/E27 - E27 EBBR Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) |
DataStreams: | sgp30ebbrE27.a1, sgp30ebbrE27.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: | sgp30ebbrE27.a1:
sgp30ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2003 | 1030 | 07/09/2003 | 1700 |
Subject: | SGP/EBBR/E27 - Soil Heat Flow #2 Incorrect |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
Description: | Soil Heat Flow sensor #2 was intermittently incorrect at first and then constantly so later in the period. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/15/2003 | 0100 | 06/23/2003 | 1900 |
06/27/2003 | 1030 | 06/27/2003 | 1300 |
06/30/2003 | 0030 | 06/30/2003 | 0730 |
06/30/2003 | 1000 | 06/30/2003 | 2000 |
07/05/2003 | 0400 | 07/10/2003 | 0500 |
07/10/2003 | 1430 | 07/20/2003 | 0300 |
07/20/2003 | 1730 | 07/21/2003 | 0230 |
07/21/2003 | 1930 | 07/22/2003 | 0230 |
07/22/2003 | 1730 | 07/23/2003 | 0600 |
07/23/2003 | 1630 | 07/23/2003 | 1900 |
Subject: | SGP/EBBR/E27 - Soil Heat Flow #4 Incorrect |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
Description: | Soil Heat flow sensor #4 outputs were often very small negative numbers. See below for a work-around. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2003 | 1030 | 05/15/2003 | 1600 |
05/18/2003 | 1800 | 05/28/2003 | 1700 |
Subject: | SGP/EBBR/E27 - Reference T Sensor Failure |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
Description: | The reference T sensor was not working much of the time, affecting all other temperature sensors. Sensible and latent heat fluxes were incorrect when this occurred. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp5ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2003 | 1030 | 06/12/2003 | 1800 |
Subject: | SGP/EBBR/E27 - Wind Direction Hung |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
Description: | The Wind Direction frequently hung at values in the 70s or 80s. No other data was affected. Fluxes were not affected. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp5ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/15/2003 | 1600 | 05/15/2003 | 1645 |
Subject: | SGP/EBBR/E27 - 6 Month Checks |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1, sgp5ebbrE27.a1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp5ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2003 | 1630 | 06/25/2003 | 1630 |
Subject: | SGP/EBBR/E27 - Soil Heat Flow #1 Large |
DataStreams: | sgp15ebbrE27.a1, sgp15ebbrE27.b1, sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
Description: | Soil Heat Flow #1 was large for this period, for an unknown reason. |
Measurements: | sgp30ebbrE27.a1:
sgp15ebbrE27.a1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/09/2003 | 1700 | 07/09/2003 | 1700 |
Subject: | SGP/EBBR/E27 - Incorrect Data From Logger Restart |
DataStreams: | sgp30ebbrE27.a1, sgp30ebbrE27.b1 |
Description: | Some 30 minute was zero or incorrect after restart of the CR10. This is a common occurrence when sensor replacements are made or power outages occur. |
Measurements: | sgp30ebbrE27.a1:
sgp30ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/07/2003 | 0000 | 03/30/2005 | 1730 |
Subject: | SGP/EBBR/E27 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE27.b1 |
Description: | Effective 20050330.1730, the EBBR.E27 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 sgp30ebbrE27.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE27.a1). |
Measurements: | sgp30ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/28/2007 | 0140 | 10/11/2007 | 1730 |
Subject: | SGP/EBBR/E26 - Sensible and Latent Heat Fluxes Affected by bad temp sensor |
DataStreams: | sgp15ebbrE26.b1, sgp30ebbrE26.b1, sgp5ebbrE26.b1 |
Description: | The left Thum (temperature of the humidity sensor chamber) measurement was incorrect at times, affecting several measurements, including the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE26.b1:
sgp5ebbrE26.b1:
sgp30ebbrE26.b1:
|