| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D040730.1 | SGP/SWATS/E1 - Sensor failure, 85cm W | sgpswatsE1.b1 |
| D050223.3 | SGP/SWATS/E1 - Sensor failure, 25cm E | sgpswatsE1.b1 |
| D081024.1 | SGP/SWATS/E1 - Sensor failure, 5cm E | sgpswatsE1.b1 |
| D081210.4 | SGP/SWATS/E1 - Sensor failure, 85cm E | sgpswatsE1.b1 |
| D090106.1 | SGP/SWATS/E1 - Sensor failure, 15cm W | sgpswatsE1.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/17/2004 | 0730 | 10/14/2009 | 1100 |
| Subject: | SGP/SWATS/E1 - Sensor failure, 85cm W |
| DataStreams: | sgpswatsE1.b1 |
| Description: | The 85-west sensor failed and began reporting missing values (-9999) with intermittent incorrect values. Instrument removed from service 20091014. |
| Measurements: | sgpswatsE1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/18/2004 | 0130 | 10/14/2009 | 1100 |
| Subject: | SGP/SWATS/E1 - Sensor failure, 25cm E |
| DataStreams: | sgpswatsE1.b1 |
| Description: | The soil sensor at the 25-cm depth on the East profile began reporting missing or incorrect values for all soil moisture measurements (trise, tsoil, soilwatpot, watcont). Instrument removed from service 20091014. |
| Measurements: | sgpswatsE1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/18/2007 | 0000 | 10/14/2009 | 1100 |
| Subject: | SGP/SWATS/E1 - Sensor failure, 5cm E |
| DataStreams: | sgpswatsE1.b1 |
| Description: | Both trise and tsoil for the 5cm E sensor began to drop out intermittently reporting both incorrect values and values of -9999 starting on 08/18/2007. Since this date, there have been periods where values of -9999 have been reported continuously for months at a time, but the sensor always seems to come back eventually and report values that appear correct. Currently, this sensor is reporting normal values again but has failed as recently as 10/08/08. When this sensor is failing, it typically impacts tsoil_E, trise_E, soilwatpot_E, and watcont_E. However, there are cases where tsoil_E appears OK while the other variables are incorrect. Instrument was removed from service 20091014. |
| Measurements: | sgpswatsE1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/24/2005 | 0000 | 10/14/2009 | 1100 |
| Subject: | SGP/SWATS/E1 - Sensor failure, 85cm E |
| DataStreams: | sgpswatsE1.b1 |
| Description: | Both trise and tsoil for the 85cm E sensor dropped out reporting values of -9999 starting on 08/24/2005. Interestingly, both this sensor and the one at 85 cm W (D040730.1) began to report data again June-August 2006. Both sensors have reported values of -9999 after this brief period through the current date. This problem impacts tsoil_E, trise_E, soilwatpot_E, and watcont_E. Instrument was removed from service 20091014. |
| Measurements: | sgpswatsE1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/29/2008 | 0000 | 10/14/2009 | 1100 |
| Subject: | SGP/SWATS/E1 - Sensor failure, 15cm W |
| DataStreams: | sgpswatsE1.b1 |
| Description: | Both trise and tsoil for the 15cm W sensor began to drop out intermittently reporting both incorrect values and values of -9999 starting on 05/29/2008. Currently, this sensor is reporting mainly values of -9999 for all measurements with a few random incorrect values from time to time. This problem impacts tsoil_W, trise_W, soilwatpot_W, and watcont_W. Instrument removed from service 20091014. |
| Measurements: | sgpswatsE1.b1:
|