DQR ID | Subject | Data Streams Affected |
---|---|---|
D040126.5 | SGP/SWATS/E8 - Sensor failure, 15cm W | sgpswatsE8.b1 |
D040126.7 | SGP/SWATS/E27 - Incorrect Soil Moisture Data | sgpswatsE27.b1, sgpswatsE27.00 |
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 |
D040727.1 | SGP/SWATS/E20 - Incorrect Soil Moisture Data | sgpswatsE20.00, sgpswatsE20.b1 |
D041222.26 | SGP/SWATS/E27 - Reprocess: Incorrect calibrations | sgpswatsE27.b1 |
D050503.10 | SGP/SWATS/E20 - Reprocess: Changed Depth Dimension | sgpswatsE20.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 |
D081028.2 | SGP/SWATS/E20 - Sensor failure, 5cm E | sgpswatsE20.b1 |
D081028.4 | SGP/SWATS/E27 - Sensor failure, 85cm W | sgpswatsE27.b1 |
D081218.1 | SGP/SWATS/E7 - Soil temperature irregular, 125cm E | sgpswatsE7.b1 |
D081218.3 | SGP/SWATS/E27 - Incorrect soil temperature measurements | sgpswatsE27.b1 |
D090115.4 | SGP/SWATS/E20 - Sensor failure, 15cm E | sgpswatsE20.b1 |
D090115.5 | SGP/SWATS/E20 - Sensor failures | sgpswatsE20.b1 |
D090120.2 | SGP/SWATS/E27 - Incorrect serial numbers | sgpswatsE27.b1 |
D090120.3 | SGP/SWATS/E27 - Reprocess: Miscalibration | sgpswatsE27.b1 |
D090203.3 | SGP/SWATS/E20 - Incorrect soil moisture data | sgpswatsE20.b1 |
D090615.2 | SGP/SWATS/E27 - Sensor failure, 125cm E | sgpswatsE27.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 |
---|---|---|---|
08/20/2003 | 1700 | 02/18/2004 | 1700 |
Subject: | SGP/SWATS/E27 - Incorrect Soil Moisture Data |
DataStreams: | sgpswatsE27.b1, sgpswatsE27.00 |
Description: | The temperature rise readings from all depths on both the east and west profiles (trise_E, trise_W) are incorrect. This also causes the matric potential (soilwatpot_E, soilwatpot_W) and water content (watcont_E, watcont_W) data to be incorrect. |
Measurements: | sgpswatsE27.b1:
sgpswatsE27.00:
|
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 |
---|---|---|---|
07/09/2004 | 1800 | 07/21/2004 | 1900 |
Subject: | SGP/SWATS/E20 - Incorrect Soil Moisture Data |
DataStreams: | sgpswatsE20.00, sgpswatsE20.b1 |
Description: | Due to failure of an electronic component (apparently caused by the onset of precipitation), the temperature rise readings from both the west and east profiles (trise_W, trise_E) are incorrect at all depths. This also causes the matric potential (soilwatpot_W, soilwatpot_E) and water content (watcont_W, watcont_E) data to be incorrect. |
Measurements: | sgpswatsE20.00:
sgpswatsE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/18/2004 | 1800 | 03/04/2004 | 2330 |
Subject: | SGP/SWATS/E27 - Reprocess: Incorrect calibrations |
DataStreams: | sgpswatsE27.b1 |
Description: | The calibration coefficients for the 5-cm sensor on the East profile are incorrect. This is causing incorrect soil water content (watcont_E) to be reported. |
Measurements: | sgpswatsE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/08/1996 | 0000 | 04/19/2005 | 2359 |
Subject: | SGP/SWATS/E20 - Reprocess: Changed Depth Dimension |
DataStreams: | sgpswatsE20.b1 |
Description: | The dimension "depth" in the netCDF files was incorrectly reported as 8, and has been changed. Newer files with the correct smaller depth dimension do not have extra placeholder values and thus are smaller in size. |
Measurements: | sgpswatsE20.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 |
---|---|---|---|
03/07/2005 | 2200 | 11/11/2008 | 1500 |
Subject: | SGP/SWATS/E20 - Sensor failure, 5cm E |
DataStreams: | sgpswatsE20.b1 |
Description: | The temperature rise readings from the 5-cm depth on the east profile are incorrect. This also causes the matric potential and water content data for the 5-cm depth to be incorrect. The soil temperature measurements were not affected. |
Measurements: | sgpswatsE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/04/2006 | 0700 | 12/04/2009 | 2200 |
Subject: | SGP/SWATS/E27 - Sensor failure, 85cm W |
DataStreams: | sgpswatsE27.b1 |
Description: | The 85 cm West sensor (based on location in the multiplexer) at this facility appears to have failed. After initially demonstrating problems in mid-2006, all variables from this sensor began to report as -9999 on and after 7:00 GMT on 08/04/06. Note, although this sensor is listed as 85 cm W in the data files due to its location in the multiplexer, it is actually the 85 cm E sensor in the ground. Instrument removed from service 20091204. |
Measurements: | sgpswatsE27.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 |
---|---|---|---|
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 |
---|---|---|---|
04/26/2005 | 0300 | 11/11/2008 | 1500 |
Subject: | SGP/SWATS/E20 - Sensor failure, 15cm E |
DataStreams: | sgpswatsE20.b1 |
Description: | The temperature rise readings from the 15-cm depth on the east profile were incorrect (0 or -9999) This also caused the matric potential and water content data for the 15-cm depth to be incorrect. Soil temperature data measurements also failed 20060502. No data from this sensor should be used at or beyond this date. |
Measurements: | sgpswatsE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/05/2005 | 0000 | 11/11/2008 | 1500 |
Subject: | SGP/SWATS/E20 - Sensor failures |
DataStreams: | sgpswatsE20.b1 |
Description: | Following a period of missing values (-9999) from 08/05/05-08/17/05, sensors at several depths failed. Temperature rise values from the 60cm West and 85cm East profile sensors were very noisy after 08/17/05. These data, including matric potential and water content, were incorrect. Temperature rise values from the 85cm West and 125cm East profile sensors are reported as 0 after 08/17/05. Matric potential and water content data for these sensor were also incorrect. Soil temperatures for these depths were unaffected. Temperature rise and soil temperature measurements for the 60cm East and 125cm West profile sensors were reported as 0 or -9999 after 08/17/05. Matric potential and water content data for these sensors were also incorrect. |
Measurements: | sgpswatsE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2003 | 1900 | 11/30/2008 | 2300 |
Subject: | SGP/SWATS/E27 - Incorrect serial numbers |
DataStreams: | sgpswatsE27.b1 |
Description: | The wiring at E27 from the Campbell Scientific 229-L sensors is backwards. This issue impacts the following variables but does not impact data quality: serial_numbers_W, serial_numbers_E. All serial numbers stored in the serial_numbers_W variable apply to data stored in the trise_E and tsoil_E variables, and vice versa. Thus, the user should be aware that the trise_W, trise_E, tsoil_W, and tsoil_E variables actually contain data from the opposite profile. |
Measurements: | sgpswatsE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2003 | 1900 | 11/30/2008 | 2300 |
Subject: | SGP/SWATS/E27 - Reprocess: Miscalibration |
DataStreams: | sgpswatsE27.b1 |
Description: | The wiring at E27 from the Campbell Scientific 229-L sensors is backwards. Matric potential and water content data are incorrect due to incorrect calibrations being applied to temperature rise sensor data. |
Measurements: | sgpswatsE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/2007 | 0000 | 11/11/2008 | 1500 |
Subject: | SGP/SWATS/E20 - Incorrect soil moisture data |
DataStreams: | sgpswatsE20.b1 |
Description: | After 12/20/2007, temperature rise values for all sensors (still operational at the time) were much too high, on the order of 10's of degrees C. Matric potential and water content data for these sensors were also incorrect. |
Measurements: | sgpswatsE20.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 |
---|---|---|---|
07/30/2009 | 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:
|