DQR ID | Subject | Data Streams Affected |
---|
D040615.6 | SGP/SWATS/E12 - Time drift | sgpswatsE12.b1, sgpswatspcpE12.b1 |
D040727.1 | SGP/SWATS/E20 - Incorrect Soil Moisture Data | sgpswatsE20.00, sgpswatsE20.b1 |
D050503.10 | SGP/SWATS/E20 - Reprocess: Changed Depth Dimension | sgpswatsE20.b1 |
D050503.6 | SGP/SWATS/E12 - Reprocess: Changed Depth Dimension | sgpswatsE12.b1 |
D050503.8 | SGP/SWATS/E13 - Reprocess: Changed Depth Dimension | sgpswatsE13.b1 |
D060802.1 | SGP/SWATS/E12 - Incorrect soil moisture | sgpswatsE12.b1 |
D071026.2 | SGP/SWATS/E12 - Reprocess: Incorrect calibrations | sgpswatsE12.b1 |
D081027.4 | SGP/SWATS/E16 - Incorrect soil moisture | sgpswatsE16.b1 |
D081028.2 | SGP/SWATS/E20 - Sensor failure, 5cm E | sgpswatsE20.b1 |
D081210.13 | SGP/SWATS/E15 - Incorrect soil moisture | sgpswatsE15.b1 |
D081222.5 | SGP/SWATS/E16 - Sensor failure, 125cm E | sgpswatsE16.b1 |
D090115.4 | SGP/SWATS/E20 - Sensor failure, 15cm E | sgpswatsE20.b1 |
D090115.5 | SGP/SWATS/E20 - Sensor failures | sgpswatsE20.b1 |
D090121.3 | SGP/SWATS/E16 - Sensor failure, 125cm E | sgpswatsE16.b1 |
D090203.3 | SGP/SWATS/E20 - Incorrect soil moisture data | sgpswatsE20.b1 |
D100715.1 | SGP/SWATS/E16 - Sensor failure | sgpswatsE16.b1 |
D100915.2 | SGP/SWATS/E16 - Sensor failure, 35-cm E | sgpswatsE16.b1 |
D110629.1 | SGP/SWATS/E13 - Lightning damage | sgpswatsE13.b1 |
D110707.1 | SGP/SWATS/E15 - Missing data | sgpswatsE15.b1 |
D110727.1 | SGP/SWATS/E16 - Sensor failure, 25cm E | sgpswatsE16.b1 |
D110810.1 | SGP/SWATS/E20 - Sensor failure, 25cm E | sgpswatsE20.b1 |
Subject: | SGP/SWATS/E12 - Time drift |
DataStreams: | sgpswatsE12.b1, sgpswatspcpE12.b1
|
Description: | The time synchronization server stopped working on Feb. 19th at 22:12:16 GMT. The clock
was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for
observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on
March 10th. |
Measurements: | sgpswatspcpE12.b1: - Precipitation, total(precip)
- time
- base_time
- time_offset
sgpswatsE12.b1: - tref
- Soil Temperature, West Profile(tsoil_W)
- Soil Water Potential, East Profile(soilwatpot_E)
- Sensor Temperature Rise, West Profile(trise_W)
- Volumetric Water Content, West Profile(watcont_W)
- time_offset
- Sensor Temperature Rise, East Profile(trise_E)
- Soil Water Potential, West Profile(soilwatpot_W)
- base_time
- Volumetric Water Content, East Profile(watcont_E)
- Soil Temperature, East Profile(tsoil_E)
|
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: - Raw data stream - documentation not supported
sgpswatsE20.b1: - Volumetric Water Content, West Profile(watcont_W)
- Soil Water Potential, East Profile(soilwatpot_E)
- Soil Water Potential, West Profile(soilwatpot_W)
- Volumetric Water Content, East Profile(watcont_E)
- Sensor Temperature Rise, West Profile(trise_W)
- Sensor Temperature Rise, East Profile(trise_E)
|
Subject: | SGP/SWATS/E12 - Incorrect soil moisture |
DataStreams: | sgpswatsE12.b1
|
Description: | Temperature rise values were way to high (~40 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 temperature rise is too high, the soil moisture data is dubious at best and
unusable at worst. Since this "out-of-bounds" t_rise is so high, the soil moisture data
are practically unusable.
Soil temperature measurements were not affected. |
Measurements: | sgpswatsE12.b1: - Soil Water Potential, West Profile(soilwatpot_W)
- Soil Water Potential, East Profile(soilwatpot_E)
- Sensor Temperature Rise, West Profile(trise_W)
- Volumetric Water Content, West Profile(watcont_W)
- Volumetric Water Content, East Profile(watcont_E)
- Sensor Temperature Rise, East Profile(trise_E)
|
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: - Volumetric Water Content, West Profile(watcont_W)
- Soil Water Potential, East Profile(soilwatpot_E)
- Soil Water Potential, West Profile(soilwatpot_W)
- Volumetric Water Content, East Profile(watcont_E)
- Soil Temperature, East Profile(tsoil_E)
- Sensor Temperature Rise, West Profile(trise_W)
- Soil Temperature, West Profile(tsoil_W)
- Sensor Temperature Rise, East Profile(trise_E)
|
Subject: | SGP/SWATS/E13 - Lightning damage |
DataStreams: | sgpswatsE13.b1
|
Description: | After a lightning strike near the CF, the SWATS trise values were reporting near zero. The
current channel in the CE8 module failed, so the wire was moved to the next channel and
trise values returned to normal.
There are no soil moisture data available during this time period. |
Measurements: | sgpswatsE13.b1: - Soil Water Potential, West Profile(soilwatpot_W)
- Sensor Temperature Rise, West Profile(trise_W)
- Volumetric Water Content, West Profile(watcont_W)
- Sensor Temperature Rise, East Profile(trise_E)
- Volumetric Water Content, East Profile(watcont_E)
- Soil Water Potential, East Profile(soilwatpot_E)
|