| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D081218.1 | SGP/SWATS/E7 - Soil temperature irregular, 125cm E | sgpswatsE7.b1 |
| D081218.2 | SGP/SWATS/E10 - Soil temperature irregular, 25cm W | sgpswatsE10.b1 |
| D081218.3 | SGP/SWATS/E27 - Incorrect soil temperature measurements | sgpswatsE27.b1 |
| D090320.1 | SGP/SWATS/E19 - Incorrect soil, 35cm E | sgpswatsE19.b1 |
| D090320.2 | SGP/SWATS/E1 - Instrument failure | sgpswatsE1.b1 |
| D090615.2 | SGP/SWATS/E27 - Sensor failure, 125cm E | sgpswatsE27.b1 |
| D090714.2 | SGP/SWATS/E3 - Incorrect temperature rise data | sgpswatsE3.b1 |
| D090828.1 | SGP/SWATS/E19 - Incorrect tsoil, 85cm E and 85cm W | sgpswatsE19.b1 |
| D090828.2 | SGP/SWATS/E19 - Incorrect tsoil, 125cm E | sgpswatsE19.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/28/2008 | 1900 | 02/04/2009 | 2025 |
| Subject: | SGP/SWATS/E7 - Soil temperature irregular, 125cm E |
| DataStreams: | sgpswatsE7.b1 |
| Description: | The 125 cm E sensor was demonstrating temporal irregularities in its soil temperature measurements. These irregularities consisted of dips and increases of around 2-4 C that typically started around 14:00 or 15:00 GMT on most days. On other days the values appeared somewhat noisy throughout the day. In both cases, the temporal changes did not compare well with the other sensors installed at E7. A bad fiber optic cable was replaced. |
| Measurements: | sgpswatsE7.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/28/2008 | 2200 | 02/04/2009 | 2045 |
| Subject: | SGP/SWATS/E10 - Soil temperature irregular, 25cm W |
| DataStreams: | sgpswatsE10.b1 |
| Description: | The 25 cm W sensor was demonstrating temporal irregularities and were noisy at times. These irregularities consisted of dips and increases of around 2-4 C that typically started around 14:00 or 15:00 GMT on most days. On other days the values appeared somewhat noisy throughout the day. In both cases, the temporal changes did not compare well with the other sensors installed at E10. A broken wire was repaired for 25cm W sensor. |
| Measurements: | sgpswatsE10.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/01/2008 | 0000 | 02/26/2009 | 1545 |
| Subject: | SGP/SWATS/E27 - Incorrect soil temperature measurements |
| DataStreams: | sgpswatsE27.b1 |
| Description: | All of the tsoil measurements at this EF appear noisy and erratic at times, impacting all sensors and both profiles. |
| Measurements: | sgpswatsE27.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/12/2008 | 0000 | 01/15/2009 | 1800 |
| Subject: | SGP/SWATS/E19 - Incorrect soil, 35cm E |
| DataStreams: | sgpswatsE19.b1 |
| Description: | The tsoil measurements from the 35 cm E sensor at this site are slightly irregular and too noisy at times. |
| Measurements: | sgpswatsE19.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/20/2009 | 0000 | 10/14/2009 | 1620 |
| Subject: | SGP/SWATS/E1 - Instrument failure |
| DataStreams: | sgpswatsE1.b1 |
| Description: | The diurnal temperature change in the tsoil measurements from all sensors installed below 5 cm at this facility appear questionable. On a daily basis, the diurnal trends in the tsoil measurements from depths below 5 cm did not match the above ground tref measurements or the tsoil measurements from the 5 cm W sensor (the 5 cm E sensor has failed). The tsoil measurements from these deeper sensors began to decrease prior to solar noon nearly every day. Also, the magnitudes of the diurnal change in these instruments appear to be the same for all sensors (Normally, the diurnal changes in tsoil are damped as we progress deeper below the surface). Attempts to correct the problem were unsuccessful until the time of site decommissioning. This facility was decommissioned and maintenance efforts ceased 10/1/2009. |
| Measurements: | sgpswatsE1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/07/2009 | 0000 | 06/17/2009 | 1615 |
| Subject: | SGP/SWATS/E27 - Sensor failure, 125cm E |
| DataStreams: | sgpswatsE27.b1 |
| Description: | The 125 cm E sensor tsoil measurements were very erratic and much too high, and all trise values were reporting as slightly negative or -9999. The issue started on 06/07 and corrected itself by 20:00 GMT the same day, but the problem returned on 06/10. Connections were re-seated on 6/17 to resolve the problem. |
| Measurements: | sgpswatsE27.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/03/2009 | 1100 | 07/22/2009 | 1700 |
| Subject: | SGP/SWATS/E3 - Incorrect temperature rise data |
| DataStreams: | sgpswatsE3.b1 |
| Description: | The temperature rise readings from all depths on both the east and west profiles were incorrect, reading near zero. This also causes the matric potential and water content data to be incorrect. |
| Measurements: | sgpswatsE3.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/12/2008 | 0000 | 04/24/2009 | 1800 |
| Subject: | SGP/SWATS/E19 - Incorrect tsoil, 85cm E and 85cm W |
| DataStreams: | sgpswatsE19.b1 |
| Description: | The tsoil measurements from the 85 cm E and 85 cm W sensors at this site are slightly irregular and too noisy at times. |
| Measurements: | sgpswatsE19.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/15/2009 | 1800 | 04/24/2009 | 1800 |
| Subject: | SGP/SWATS/E19 - Incorrect tsoil, 125cm E |
| DataStreams: | sgpswatsE19.b1 |
| Description: | The tsoil measurements from the 125 cm E sensor at this site are slightly irregular and too noisy at times. |
| Measurements: | sgpswatsE19.b1:
|