| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D011127.34 | SGP EBBR E26 - Data Incorrect During 6 Month Checks | sgp15ebbrE26.a1, sgp15ebbrE26.b1, sgp30ebbrE26.a1, sgp30ebbrE26.b1, sgp5ebbrE26.a1 |
| D011206.2 | SGP EBBR E26 - Battery Voltage Low | sgp15ebbrE26.a1, sgp15ebbrE26.b1, sgp30ebbrE26.a1, sgp30ebbrE26.b1, sgp5ebbrE26.a1 |
| 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 |
| D050719.15 | SGP/EBBR/E26 - Improved EBBR CR10 Program | sgp30ebbrE26.b1 |
| D060928.3 | SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry | sgpsondewnpnC1.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/05/2001 | 1415 | 04/05/2001 | 1546 |
| 10/16/2001 | 1750 | 10/16/2001 | 1921 |
| Subject: | SGP EBBR E26 - Data Incorrect During 6 Month Checks |
| DataStreams: | sgp15ebbrE26.a1, sgp15ebbrE26.b1, sgp30ebbrE26.a1, sgp30ebbrE26.b1, sgp5ebbrE26.a1 |
| Description: | The data was incorrect during the 6 month checks. |
| Measurements: | sgp5ebbrE26.a1:
sgp15ebbrE26.b1:
sgp15ebbrE26.a1:
sgp30ebbrE26.b1:
sgp30ebbrE26.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/01/2001 | 0000 | 08/23/2001 | 1530 |
| Subject: | SGP EBBR E26 - Battery Voltage Low |
| DataStreams: | sgp15ebbrE26.a1, sgp15ebbrE26.b1, sgp30ebbrE26.a1, sgp30ebbrE26.b1, sgp5ebbrE26.a1 |
| Description: | The battery voltage often dropped below 10.5 volts. All data for voltages below 10.5 volts should be considered to be incorrect. See the 15 minute data files, which contain the battery voltage, to determine when the data was incorrect. |
| Measurements: | sgp5ebbrE26.a1:
sgp15ebbrE26.b1:
sgp15ebbrE26.a1:
sgp30ebbrE26.b1:
sgp30ebbrE26.a1:
|
| 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 | 03/31/2005 | 1700 |
| Subject: | SGP/EBBR/E26 - Improved EBBR CR10 Program |
| DataStreams: | sgp30ebbrE26.b1 |
| Description: | Effective 20050331.1700, the EBBR.E26 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 sgp30ebbrE26.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE26.a1). ~ |
| Measurements: | sgp30ebbrE26.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/28/2006 | 1728 | 12/31/9999 | 2359 |
| Subject: | SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry |
| DataStreams: | sgpsondewnpnC1.b1 |
| Description: | The output precision of the following variables was increased 20060928 alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data. |
| Measurements: | sgpsondewnpnC1.b1:
|