DQR ID | Subject | Data Streams Affected |
---|---|---|
D040126.5 | SGP/SWATS/E8 - Sensor failure, 15cm W | sgpswatsE8.b1 |
D040126.6 | SGP/SWATS/E19 - Sensor failure, 85cm E | sgpswatsE19.b1 |
D040730.1 | SGP/SWATS/E1 - Sensor failure, 85cm W | sgpswatsE1.b1 |
D040730.2 | SGP/SWATS/E5 - Sensor failure, 25cm E | sgpswatsE5.b1 |
D041222.22 | SGP/SWATS/E19 - Sensor failure, 5cm W | sgpswatsE19.b1 |
D050223.3 | SGP/SWATS/E1 - Sensor failure, 25cm E | sgpswatsE1.b1 |
D070503.2 | SGP/SWATS/E10 - Incorrect soil moisture | sgpswatsE10.b1 |
D070716.3 | SGP/SWATS/E5 - Incorrect soil moisture data | sgpswatsE5.b1 |
D081022.6 | SGP/SWATS/E6 - Sensor failure, 175cm E | sgpswatsE6.b1 |
D081024.4 | SGP/SWATS/E8 - Sensor failure, 35cm W | sgpswatsE8.b1 |
D081027.5 | SGP/SWATS/E19 - Sensor failure, 60cm E | sgpswatsE19.b1 |
D081028.2 | SGP/SWATS/E20 - Sensor failure, 5cm E | sgpswatsE20.b1 |
D081028.4 | SGP/SWATS/E27 - Sensor failure, 85cm W | sgpswatsE27.b1 |
D081210.10 | SGP/SWATS/E10 - Sensor failure, 15cm W | sgpswatsE10.b1 |
D081210.11 | SGP/SWATS/E10 - Sensor failure, 15cm E | sgpswatsE10.b1 |
D081210.4 | SGP/SWATS/E1 - Sensor failure, 85cm E | sgpswatsE1.b1 |
D081210.5 | SGP/SWATS/E5 - Sensor failure, 5cm E | sgpswatsE5.b1 |
D081210.7 | SGP/SWATS/E5 - Sensor failure, 125cm W | sgpswatsE5.b1 |
D081210.8 | SGP/SWATS/E5 - Sensor failure, 175cm W | sgpswatsE5.b1 |
D081223.1 | SGP/SWATS/E19 - Sensor failure, 125 W | sgpswatsE19.b1 |
D090110.1 | SGP/SWATS/E5 - Sensor failure, 5cm E | sgpswatsE5.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 |
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 |
---|---|---|---|
07/13/2003 | 0700 | 12/11/2008 | 2300 |
Subject: | SGP/SWATS/E19 - Sensor failure, 85cm E |
DataStreams: | sgpswatsE19.b1 |
Description: | The temperature rise readings from the 85-cm depth on the east profile are incorrect. This also causes the matric potential and water content data for the 85-cm depth to be incorrect. |
Measurements: | sgpswatsE19.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 |
---|---|---|---|
07/25/2004 | 0130 | 11/02/2009 | 1300 |
Subject: | SGP/SWATS/E5 - Sensor failure, 25cm E |
DataStreams: | sgpswatsE5.b1 |
Description: | The 25-cm East sensor began reporting missing values (-9999) after 0130 GMT, with intermittent incorrect values. All data from this sensor are missing or incorrect. Instrument removed from service 20091102. |
Measurements: | sgpswatsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/2004 | 1830 | 12/11/2008 | 2300 |
Subject: | SGP/SWATS/E19 - Sensor failure, 5cm W |
DataStreams: | sgpswatsE19.b1 |
Description: | The sensor at the 5-cm depth on the west profile began reporting missing values (-9999) with a few intermittent incorrect values after 1830GMT. (The 5-cm west soil temperatures are good until 2030GMT on 20041203.) |
Measurements: | sgpswatsE19.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 |
---|---|---|---|
05/03/2007 | 0000 | 05/15/2007 | 2100 |
06/20/2007 | 0000 | 08/22/2007 | 1500 |
Subject: | SGP/SWATS/E10 - Incorrect soil moisture |
DataStreams: | sgpswatsE10.b1 |
Description: | All temperature rise values were incorrect. Soil moisture variables were also incorrect due to the incorrect T-rise values. Soil temperature measurements were not affected. |
Measurements: | sgpswatsE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/23/2007 | 1200 | 07/26/2007 | 1900 |
Subject: | SGP/SWATS/E5 - Incorrect soil moisture data |
DataStreams: | sgpswatsE5.b1 |
Description: | The temperature rise values were too high (> 20 deg C). Water potential is calculated from a rise (and subsequent drop) in temperature in the sensor that is normally ~1-5 degrees C. When the T_rise is too high, the soil moisture data is dubious at best and unusable at worst. Soil temperatures are OK. |
Measurements: | sgpswatsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/28/2005 | 0400 | 10/18/2011 | 1600 |
Subject: | SGP/SWATS/E6 - Sensor failure, 175cm E |
DataStreams: | sgpswatsE6.b1 |
Description: | All variables from the 175-cm depth on the east profile are reporting as -9999. Sensor has failed. |
Measurements: | sgpswatsE6.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 |
---|---|---|---|
06/28/2000 | 0300 | 12/11/2008 | 2000 |
Subject: | SGP/SWATS/E19 - Sensor failure, 60cm E |
DataStreams: | sgpswatsE19.b1 |
Description: | The 60cm East profile sensor began reporting temperature rise values near 0 C. This problem continued until the old profile of sensors was disconnected and the new set of sensors was connected. The soil temperature measure was not impacted by this problem. |
Measurements: | sgpswatsE19.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 |
---|---|---|---|
08/15/2006 | 0500 | 10/19/2011 | 1625 |
Subject: | SGP/SWATS/E10 - Sensor failure, 15cm W |
DataStreams: | sgpswatsE10.b1 |
Description: | All variables from the 15cm West sensor are reported as missing. The sensor has failed. |
Measurements: | sgpswatsE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/02/2002 | 0700 | 10/19/2011 | 1625 |
Subject: | SGP/SWATS/E10 - Sensor failure, 15cm E |
DataStreams: | sgpswatsE10.b1 |
Description: | The 15cm E sensor failed at 7:00 GMT on 06/02/2002. Values of temperature rise from this sensor often do not fail automated QC tests, but inspection of the time series reveals that the values are incorrect. Since 2002, this sensor has alternated between providing temperature rise values near 0 C, equal to -9999, or other obviously incorrect values. Soil temperature data are not affected. |
Measurements: | sgpswatsE10.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 |
---|---|---|---|
06/23/2007 | 1300 | 07/08/2007 | 0700 |
Subject: | SGP/SWATS/E5 - Sensor failure, 5cm E |
DataStreams: | sgpswatsE5.b1 |
Description: | The temperature rise on 5cm E profile are incorrect (> MAX QC test) beginning 20070623. This also causes the matric potential and water content data to be incorrect. |
Measurements: | sgpswatsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/07/1999 | 0000 | 11/02/2009 | 1300 |
Subject: | SGP/SWATS/E5 - Sensor failure, 125cm W |
DataStreams: | sgpswatsE5.b1 |
Description: | Both the temperature rise and soil temperature measures of the 125-cm W profile are reported as -9999 since 10/07/99. This sensor has been essentially dead since then, and all associated variables are impacted. Instrument removed from service 20091102. |
Measurements: | sgpswatsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/2001 | 2200 | 11/02/2009 | 1300 |
Subject: | SGP/SWATS/E5 - Sensor failure, 175cm W |
DataStreams: | sgpswatsE5.b1 |
Description: | The temperature rise of the 175cm W profile began reporting as incorrect with values near 0 C on 20010817. This also causes the matric potential and water content data to be incorrect. Soil temperature data are not affected. Instrument removed from service 20091102. |
Measurements: | sgpswatsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/21/2002 | 0900 | 12/11/2008 | 2100 |
Subject: | SGP/SWATS/E19 - Sensor failure, 125 W |
DataStreams: | sgpswatsE19.b1 |
Description: | Temperature rise values form the 125 cm West profile sensor began reporting values near 0 C. This problem continued until the old profile of sensors was disconnected and the new set of sensors was connected. The soil temperature measure was not impacted by this problem. |
Measurements: | sgpswatsE19.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/08/2007 | 0700 | 11/02/2009 | 1300 |
Subject: | SGP/SWATS/E5 - Sensor failure, 5cm E |
DataStreams: | sgpswatsE5.b1 |
Description: | Beginning 07/08/2007, the 5-cm East profile sensor is reporting -9999 for all variables. Instrument removed from service 20091102. |
Measurements: | sgpswatsE5.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:
|