Data Quality Reports for Session: 111498 User: jsooner Completed: 04/11/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040126.4SGP/SWATS/E5 - Sensor failuresgpswatsE5.00, sgpswatsE5.b1
D041027.2SGP/SWATS/E5 - Extra data record removedsgpswatsE5.00, sgpswatsE5.b1
D050215.6SGP/SWATS/E5 - Missing Data from 1 SensorsgpswatsE5.00, sgpswatsE5.b1
D070716.3SGP/SWATS/E5 - T_rise values too highsgpswatsE5.b1


DQRID : D040126.4
Start DateStart TimeEnd DateEnd Time
06/26/2003040007/25/20040129
Subject:
SGP/SWATS/E5 - Sensor failure
DataStreams:sgpswatsE5.00, sgpswatsE5.b1
Description:
The temperature rise readings from the 25-cm depth on the east profile (trise_E) are 
incorrect. This also causes the matric potential (soilwatpot_E) and water content (watcont_E) 
data for the 25-cm depth to be incorrect.
Measurements:sgpswatsE5.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpswatsE5.b1:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Volumetric Water Content, East Profile(watcont_E)

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DQRID : D041027.2
Start DateStart TimeEnd DateEnd Time
01/28/2004190701/28/20041907
Subject:
SGP/SWATS/E5 - Extra data record removed
DataStreams:sgpswatsE5.00, sgpswatsE5.b1
Description:
During maintenance by site operations, a 2nd data record timestamped
as 190700 was collected.  It is believed that this 2nd data record
was the result of a clock adjustment and reflects a small portion of
the hour integration period it represents.  The 2nd record was
removed from the data. The 190700 record in the data represents the
ARM best estimate of data for that time.
Measurements:sgpswatsE5.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpswatsE5.b1:
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D050215.6
Start DateStart TimeEnd DateEnd Time
07/28/2004183008/11/20041830
Subject:
SGP/SWATS/E5 - Missing Data from 1 Sensor
DataStreams:sgpswatsE5.00, sgpswatsE5.b1
Description:
The sensor at the 35-cm depth on the east profile reported missing values for a couple of 
weeks.
Measurements:sgpswatsE5.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpswatsE5.b1:
  • Soil Water Potential, East Profile(soilwatpot_E)
  • Sensor Temperature Rise, East Profile(trise_E)
  • Volumetric Water Content, East Profile(watcont_E)
  • Soil Temperature, East Profile(tsoil_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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