| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D011127.26 | SGP EBBR E12 - E12 EBBR Data Incorrect During 6 Month Checks | sgp15ebbrE12.a1, sgp15ebbrE12.b1, sgp30ebbrE12.a1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
| D011207.11 | SGP EBBR E12 - E12 EBBR Data Incorrect From AEM In One Position | sgp15ebbrE12.a1, sgp15ebbrE12.b1, sgp30ebbrE12.a1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
| D020717.6 | SGP/EBBR/E12 - Reprocess: Soil Temperature #3 Incorrect | sgp30ebbrE12.a1, sgp30ebbrE12.b1 |
| 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 |
| D050719.9 | SGP/EBBR/E12 - Improved EBBR CR10 Program | sgp30ebbrE12.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/03/2001 | 1625 | 04/03/2001 | 1716 |
| 10/18/2001 | 1930 | 10/18/2001 | 2116 |
| Subject: | SGP EBBR E12 - E12 EBBR Data Incorrect During 6 Month Checks |
| DataStreams: | sgp15ebbrE12.a1, sgp15ebbrE12.b1, sgp30ebbrE12.a1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
| Description: | The data was incorrect during the 6 month checks. |
| Measurements: | sgp15ebbrE12.b1:
sgp30ebbrE12.a1:
sgp5ebbrE12.a1:
sgp30ebbrE12.b1:
sgp15ebbrE12.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/06/2001 | 2030 | 04/11/2001 | 1731 |
| 04/16/2001 | 1900 | 04/17/2001 | 1631 |
| 04/17/2001 | 2330 | 04/18/2001 | 1631 |
| 04/18/2001 | 2100 | 04/20/2001 | 1301 |
| 04/20/2001 | 2130 | 04/21/2001 | 0931 |
| 04/21/2001 | 2030 | 04/26/2001 | 1501 |
| 04/27/2001 | 0030 | 05/01/2001 | 1431 |
| Subject: | SGP EBBR E12 - E12 EBBR Data Incorrect From AEM In One Position |
| DataStreams: | sgp15ebbrE12.a1, sgp15ebbrE12.b1, sgp30ebbrE12.a1, sgp30ebbrE12.b1, sgp5ebbrE12.a1 |
| Description: | The AEM kept stopping in one position. Offset biases are not removed from the gradient data in this situation and the data indicated is therefore incorrect. |
| Measurements: | sgp15ebbrE12.b1:
sgp30ebbrE12.a1:
sgp5ebbrE12.a1:
sgp30ebbrE12.b1:
sgp15ebbrE12.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/01/2001 | 0000 | 06/20/2002 | 1231 |
| Subject: | SGP/EBBR/E12 - Reprocess: Soil Temperature #3 Incorrect |
| DataStreams: | sgp30ebbrE12.a1, sgp30ebbrE12.b1 |
| Description: | Soil Temperature #3 was flaky primarily during nighttime hours and sometimes during early
daylight hours. Average soil heat flow, sensible heat flux, and latent heat flux are
also affected; these can be recalculated using the remaining good sets of soil sensors as
follows:
The heat fluxes can be recalculated by using soil sets 1, 2, 4, and 5 as follows:
ave_shf = (g1 + g2 + g4 + g5)/4
e = -(q + ave_shf)/(1 + bowen)
h = -(q + e + ave_shf) |
| Measurements: | sgp30ebbrE12.a1:
sgp30ebbrE12.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 |
|---|---|---|---|
| 04/01/2001 | 0000 | 03/29/2005 | 1830 |
| Subject: | SGP/EBBR/E12 - Improved EBBR CR10 Program |
| DataStreams: | sgp30ebbrE12.b1 |
| Description: | Effective 20050329.1830, the EBBR.E12 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 20050329, 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 sgp30ebbrE12.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE12.a1). |
| Measurements: | sgp30ebbrE12.b1:
|