Data Quality Reports for Session: 127259 User: jpviel Completed: 04/14/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D061213.1NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectlynsamettwr4hC1.b1
D061213.2NSA/METTWR/C1 - 40m wind sensor heater failurensamettwr4hC1.b1
D070529.1NSA/METTWR/C1 - 20m RH Data Questionablensamettwr4hC1.b1


DQRID : D061213.1
Start DateStart TimeEnd DateEnd Time
12/12/2006150003/14/20070234
Subject:
NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectly
DataStreams:nsamettwr4hC1.b1
Description:
The CMH temp and DP were higher than the co-located T/RH probe at the 2m level.  An 
incorrect calibration along with a failing thermistor caused the readings to be incorrect for 
both measured values Temp and Dew Point.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)

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DQRID : D061213.2
Start DateStart TimeEnd DateEnd Time
11/01/2006000005/22/20072347
Subject:
NSA/METTWR/C1 - 40m wind sensor heater failure
DataStreams:nsamettwr4hC1.b1
Description:
The 40m wind direction became frozen at times.  The values from the sensor were flat-lined 
(stdev = 0) much of the time and did not match sensors from other levels.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • Standard Deviation of 40m Vector Averaged Wind Direction(WD40M_SDU_WVT)

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DQRID : D070529.1
Start DateStart TimeEnd DateEnd Time
10/18/2006000005/22/20072330
Subject:
NSA/METTWR/C1 - 20m RH Data Questionable
DataStreams:nsamettwr4hC1.b1
Description:
The 20m RH data was questionable at times.  When the data appeared to be poor was when the 
2m and 20m agreed better than the 20m and the 40m and/or 10m.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 20m Calculated Dew Point(DP20M_STD)
  • 20m Average Calculated Dew Point(DP20M_AVG)
  • 20m Average Calculated Vapor Pressure(VP20M_AVG)
  • Standard Deviation of 20m Relative Humidity(RH20M_STD)
  • 20m Average Relative Humidity(RH20M_AVG)
  • Standard Deviation of 20m Calculated Vapor Pressure(VP20M_STD)

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