Data Quality Reports for Session: 117613 User: f1niu Completed: 02/17/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D041123.1SGP/THWAPS/C1 - RH Sensor CalibrationsgpthwapsC1.b1
D050812.12SGP/THWAPS/C1 - Minor bias in saturation vapor pressuresgpthwapsC1.b1
D080116.24SGP/THWAPS/C1 - RH Data IncorrectsgpthwapsC1.b1


DQRID : D041123.1
Start DateStart TimeEnd DateEnd Time
11/16/2004213511/29/20041930
Subject:
SGP/THWAPS/C1 - RH Sensor Calibration
DataStreams:sgpthwapsC1.b1
Description:
The analog output for the T/RH probe was incorrectly calibrated.  This
caused excessively high readings of RH.
Measurements:sgpthwapsC1.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Standard Deviation of Vapor Pressure(sd_vap_pres)
  • Standard Deviation of Relative Humidity(sd_rh)
  • Vapor Pressure (kiloPascals)(vap_pres)

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DQRID : D050812.12
Start DateStart TimeEnd DateEnd Time
09/21/1999000008/10/20051445
Subject:
SGP/THWAPS/C1 - Minor bias in saturation vapor pressure
DataStreams:sgpthwapsC1.b1
Description:
The saturation vapor correction when temps are below 0C contained an error
in the multiplier.  The incorrect multiplier only equates to an error of
0.01 kPa which is less than the stated uncertainty of the measurement (+/-
0.035 kPa).
Measurements:sgpthwapsC1.b1:
  • Vapor Pressure (kiloPascals)(vap_pres)

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DQRID : D080116.24
Start DateStart TimeEnd DateEnd Time
12/22/2007175012/22/20072130
Subject:
SGP/THWAPS/C1 - RH Data Incorrect
DataStreams:sgpthwapsC1.b1
Description:
The RH data was incorrect during the times listed.  Reason unknown.  The sensor recovered 
on its own.
Measurements:sgpthwapsC1.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Standard Deviation of Vapor Pressure(sd_vap_pres)
  • Standard Deviation of Relative Humidity(sd_rh)
  • Vapor Pressure (kiloPascals)(vap_pres)

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