Data Quality Reports for Session: 112193 User: sloehrer Completed: 05/27/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050223.4SGP/SWATS/E1 - Questionable Soil Moisture DatasgpswatsE1.00, sgpswatsE1.b1
D060531.6SGP/SWATS/E9 - Incorrect reference temperaturesgpswatsE9.b1
D070716.3SGP/SWATS/E5 - T_rise values too highsgpswatsE5.b1
D070829.1SGP/SWATS/E4 - Failure of T_rise channelsgpswatsE4.b1


DQRID : D050223.4
Start DateStart TimeEnd DateEnd Time
01/14/2005063001/23/20052330
Subject:
SGP/SWATS/E1 - Questionable Soil Moisture Data
DataStreams:sgpswatsE1.00, sgpswatsE1.b1
Description:
Between the 06GMT and 07GMT measurements on January 14th, it appears that some sort of 
non-atmospheric moisture source affected the 4 shallowest sensors (5-cm West & East, 15-cm 
West & East). No precipitation was recorded at the site, but data indicate a sharp 
increase in soil moisture that caused suspicious behavior that gradually lessened through 
January 23rd. Animal intrusion, but more probably adolescent mischief, is suspected.
Measurements:sgpswatsE1.b1:
  • Sensor Temperature Rise, East Profile(trise_E)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Volumetric Water Content, West Profile(watcont_W)
sgpswatsE1.00:
  • null(Raw data stream - documentation not supported)

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DQRID : D060531.6
Start DateStart TimeEnd DateEnd Time
04/24/2006160006/01/20061600
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:
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Reference Thermistor Temperature(tref)
  • Volumetric Water Content, East Profile(watcont_E)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Volumetric Water Content, West Profile(watcont_W)
  • Soil Water Potential, East Profile(soilwatpot_E)

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DQRID : D070716.3
Start DateStart TimeEnd DateEnd Time
06/23/2007120007/26/20071900
Subject:
SGP/SWATS/E5 - T_rise values too high
DataStreams:sgpswatsE5.b1
Description:
The temperature rise values (trise_W, trise_E) are 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.

Due to the high T-rise (from which water potential and water content are derived), the 
moisture data is unusable.
Measurements:sgpswatsE5.b1:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Volumetric Water Content, East Profile(watcont_E)
  • Volumetric Water Content, West Profile(watcont_W)
  • Sensor Temperature Rise, West Profile(trise_W)

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DQRID : D070829.1
Start DateStart TimeEnd DateEnd Time
08/23/2007160009/05/20071500
Subject:
SGP/SWATS/E4 - Failure of T_rise channel
DataStreams:sgpswatsE4.b1
Description:
Negligible T_rise.  Soil temperature is OK, but due to lack of T-rise, there are no soil 
moisture measurements.
Measurements:sgpswatsE4.b1:
  • Sensor Temperature Rise, East Profile(trise_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Sensor Temperature Rise, West Profile(trise_W)
  • Soil Water Potential, West Profile(soilwatpot_W)
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Volumetric Water Content, West Profile(watcont_W)

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