DQR ID | Subject | Data Streams Affected |
---|---|---|
D040126.5 | SGP/SWATS/E8 - Sensor failure, 15cm W | sgpswatsE8.b1 |
D040212.6 | SGP/SWATS/E7 - Sensor failure, 35cm E | sgpswatsE7.b1 |
D040213.2 | SGP/SWATS/E8 - Sensor failure, 15cm E | sgpswatsE8.b1 |
D040714.1 | SGP/SWATS/E7 - Missing Data | sgpswatsE7.b1 |
D060531.6 | SGP/SWATS/E9 - Incorrect reference temperature | sgpswatsE9.b1 |
D081024.3 | SGP/SWATS/E7 - Sensor failure, 35cm E | sgpswatsE7.b1 |
D081024.4 | SGP/SWATS/E8 - Sensor failure, 35cm W | sgpswatsE8.b1 |
D081218.1 | SGP/SWATS/E7 - Soil temperature irregular, 125cm E | sgpswatsE7.b1 |
D090807.1 | SGP/SWATS/E8 - Sensor failure, 60cm W | sgpswatsE8.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2002 | 0500 | 11/10/2009 | 1300 |
Subject: | SGP/SWATS/E8 - Sensor failure, 15cm W |
DataStreams: | sgpswatsE8.b1 |
Description: | The temperature rise readings from the 15-cm depth on the west profile are incorrect. This also causes the matric potential and water content data to be incorrect. Instrument removed from service 20091110. |
Measurements: | sgpswatsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2004 | 0400 | 01/06/2004 | 0515 |
01/27/2004 | 1300 | 02/08/2004 | 1830 |
06/17/2004 | 1700 | 06/23/2004 | 1900 |
12/23/2004 | 0700 | 12/24/2004 | 1130 |
Subject: | SGP/SWATS/E7 - Sensor failure, 35cm E |
DataStreams: | sgpswatsE7.b1 |
Description: | The 35cm East profile data spiked out of range on 20040106. Soil temperature is incorrect at 0407 GMT, and all 35cm E data are incorrect at 0407 and 0507 GMT. The 35cm East profile sensor failed on 20040127 around 1300 GMT. All data from this sensor are incorrect or missing until 20040208. The 35cm East temperature rise readings were noisy and inconsistent with the rest of the data 20040317-20040623. This also caused the matric potential and water content data to be suspect. The 35cm East soil temperature measurements were incorrect beginning 20041223 to 9:07 on 12/24. Temperature rise, soil-water potential, and water content are incorrect from from the same start time to 11:07 GMT on 12/24. |
Measurements: | sgpswatsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/13/2004 | 0700 | 02/14/2004 | 0700 |
Subject: | SGP/SWATS/E8 - Sensor failure, 15cm E |
DataStreams: | sgpswatsE8.b1 |
Description: | The temperature rise readings from the 15-cm depth on the east profile are incorrect. This also causes the matric potential and water content data to be incorrect. |
Measurements: | sgpswatsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/26/2000 | 0607 | 07/06/2000 | 1507 |
01/28/2002 | 2307 | 01/30/2002 | 0007 |
10/16/1997 | 1007 | 11/26/1997 | 1505 |
01/30/2002 | 1307 | 02/08/2002 | 1907 |
03/14/2002 | 2308 | 03/16/2002 | 0007 |
05/08/2002 | 0608 | 05/21/2002 | 1507 |
10/02/2002 | 1807 | 10/04/2002 | 1707 |
08/29/2003 | 0407 | 09/05/2003 | 1708 |
10/07/2003 | 1707 | 10/23/2003 | 1723 |
11/20/2003 | 1907 | 12/02/2003 | 2032 |
04/24/2004 | 0207 | 04/30/2004 | 1538 |
06/08/2004 | 1907 | 06/17/2004 | 1752 |
07/04/2004 | 1107 | 07/09/2004 | 1709 |
10/31/2004 | 2007 | 11/03/2004 | 0008 |
01/04/2005 | 2307 | 01/11/2005 | 2009 |
06/15/2005 | 2207 | 06/28/2005 | 1920 |
06/30/2007 | 0607 | 08/10/2007 | 1907 |
11/02/2007 | 1607 | 11/09/2007 | 1907 |
11/23/2007 | 1807 | 11/27/2007 | 1950 |
Subject: | SGP/SWATS/E7 - Missing Data |
DataStreams: | sgpswatsE7.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpswatsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/24/2006 | 1600 | 06/01/2006 | 1600 |
Subject: | SGP/SWATS/E9 - Incorrect reference temperature |
DataStreams: | sgpswatsE9.b1 |
Description: | The reference temperature was incorrect resulting in incorrect results for soil moisture measurements. |
Measurements: | sgpswatsE9.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/08/2006 | 2000 | 11/14/2011 | 1700 |
Subject: | SGP/SWATS/E7 - Sensor failure, 35cm E |
DataStreams: | sgpswatsE7.b1 |
Description: | The 35-cm East sensor had several problems before failing permanently in 2007: 20061208.2000-20070306.2000: temperature rise reported values of -9999, and soil temperature reported abnormally high temperature values. 20070813.1200-20070912.1300: all variables reported as -9999, including soil temperature. A very small number of soil temperature values were reported as unusually high temperature values after 09/10/07. 20070912.1300-20070915.1600: incorrect values of temperature rise reported (near 0 C), and soil temperature values incorrect and unusually high. 20071110.0000-20071115.2300: incorrect values of temperature rise reported near 0 C or unusually low. Values of soil temperature OK. 20071128.0000-->: Except for two very brief recoveries (on the order of a few days), all 35cm E variables are reported as -9999. |
Measurements: | sgpswatsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/1999 | 1700 | 11/10/2009 | 1300 |
Subject: | SGP/SWATS/E8 - Sensor failure, 35cm W |
DataStreams: | sgpswatsE8.b1 |
Description: | The sensor installed at 35 cm at the west profile has produced questionable data ince it was installed back in 1996. Once the sensor began to stabilize at 17:00 GMT on 07/20/99, it has produced questionable or incorrect values of temperature rise. From 07/20/99 to the present date, 35cm W temperature rise values have stayed within a range of approximately 0.8-2.0 C, while the sensor from the 35cm E profile has produced an approximate range of 1.5-4.0 C. In addition, the calibration for this sensor is so bad it is not possible to correct it using field data. The range of temperature rise values produced by this sensor is too limited to reliably re-calibrate the instrument. Under the old ARM calibration for SWATS, the calibrated reference temperature change should fall within a range of 1.45-4.00 C (the new range is 1.38-3.96 C). For this sensor, the reference temperature change has fallen within an approximate range of 0.2-1.7 C and the calibration is actually adjusting the trise measurements in the wrong direction. Therefore, all temperature rise, matric potential and water content data are all highly suspect from the 35cm W sensor. The soil temperature data appear to be OK. Instrument removed from service 20091110. |
Measurements: | sgpswatsE8.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 |
---|---|---|---|
07/30/2009 | 0200 | 11/10/2009 | 1300 |
Subject: | SGP/SWATS/E8 - Sensor failure, 60cm W |
DataStreams: | sgpswatsE8.b1 |
Description: | At 2:00 GMT on 07/30 all measurements from the 60 cm W sensor began reporting as -9999. The sensor has failed. This EF site is scheduled to be decommissioned in the near future. Instrument removed from service 20091110. |
Measurements: | sgpswatsE8.b1:
|