Data Quality Reports for Session: 131087 User: zhengqing1 Completed: 10/26/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040714.1SGP/SWATS/E7 - Missing DatasgpswatsE7.b1
D070503.2SGP/SWATS/E10 - Incorrect soil moisturesgpswatsE10.b1
D070716.3SGP/SWATS/E5 - Incorrect soil moisture datasgpswatsE5.b1
D081027.5SGP/SWATS/E19 - Sensor failure, 60cm EsgpswatsE19.b1
D081028.2SGP/SWATS/E20 - Sensor failure, 5cm EsgpswatsE20.b1
D081210.5SGP/SWATS/E5 - Sensor failure, 5cm EsgpswatsE5.b1
D081223.1SGP/SWATS/E19 - Sensor failure, 125 WsgpswatsE19.b1
D090115.4SGP/SWATS/E20 - Sensor failure, 15cm EsgpswatsE20.b1
D090115.5SGP/SWATS/E20 - Sensor failuressgpswatsE20.b1
D090120.2SGP/SWATS/E27 - Incorrect serial numberssgpswatsE27.b1
D090120.3SGP/SWATS/E27 - Reprocess: MiscalibrationsgpswatsE27.b1


DQRID : D040714.1
Start DateStart TimeEnd DateEnd Time
10/16/1997100711/26/19971505
06/26/2000060707/06/20001507
01/28/2002230701/30/20020007
01/30/2002130702/08/20021907
03/14/2002230803/16/20020007
05/08/2002060805/21/20021507
10/02/2002180710/04/20021707
08/29/2003040709/05/20031708
10/07/2003170710/23/20031723
11/20/2003190712/02/20032032
04/24/2004020704/30/20041538
06/08/2004190706/17/20041752
07/04/2004110707/09/20041709
10/31/2004200711/03/20040008
01/04/2005230701/11/20052009
06/15/2005220706/28/20051920
06/30/2007060708/10/20071907
11/02/2007160711/09/20071907
11/23/2007180711/27/20071950
Subject:
SGP/SWATS/E7 - Missing Data
DataStreams:sgpswatsE7.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpswatsE7.b1:
  • lon
  • time_offset
  • Sensor Temperature Rise, East Profile(trise_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Water Potential, West Profile(soilwatpot_W)
  • tref
  • alt
  • Soil Temperature, West Profile(tsoil_W)
  • serial_numbers_W
  • lat
  • serial_numbers_E
  • depth
  • Sensor Temperature Rise, West Profile(trise_W)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Soil Temperature, East Profile(tsoil_E)
  • base_time
  • Volumetric Water Content, West Profile(watcont_W)

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DQRID : D070503.2
Start DateStart TimeEnd DateEnd Time
05/03/2007000005/15/20072100
06/20/2007000008/22/20071500
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:
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, West Profile(watcont_W)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Soil Water Potential, West Profile(soilwatpot_W)

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DQRID : D070716.3
Start DateStart TimeEnd DateEnd Time
06/23/2007120007/26/20071900
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:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Volumetric Water Content, West Profile(watcont_W)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Soil Water Potential, West Profile(soilwatpot_W)

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DQRID : D081027.5
Start DateStart TimeEnd DateEnd Time
06/28/2000030012/11/20082000
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:
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D081028.2
Start DateStart TimeEnd DateEnd Time
03/07/2005220011/11/20081500
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:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D081210.5
Start DateStart TimeEnd DateEnd Time
06/23/2007130007/08/20070700
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:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D081223.1
Start DateStart TimeEnd DateEnd Time
06/21/2002090012/11/20082100
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:
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Volumetric Water Content, West Profile(watcont_W)

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DQRID : D090115.4
Start DateStart TimeEnd DateEnd Time
04/26/2005030011/11/20081500
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:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Temperature, East Profile(tsoil_E)
  • Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D090115.5
Start DateStart TimeEnd DateEnd Time
08/05/2005000011/11/20081500
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:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, West Profile(watcont_W)
  • 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)

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DQRID : D090120.2
Start DateStart TimeEnd DateEnd Time
06/25/2003190011/30/20082300
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:
  • serial_numbers_E
  • serial_numbers_W

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DQRID : D090120.3
Start DateStart TimeEnd DateEnd Time
06/25/2003190011/30/20082300
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:
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Volumetric Water Content, West Profile(watcont_W)

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