Data Quality Reports for Session: 134102 User: pzhu Completed: 03/26/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100716.1GRW/MWR/M1 - Incorrect instrument computer set-upgrwmwrlosM1.b1, grwmwrtipM1.a1
D100830.1GRW/MWR/M1 - Erratic brightness temperaturegrwmwrlosM1.b1, grwmwrtipM1.a1


DQRID : D100716.1
Start DateStart TimeEnd DateEnd Time
07/11/2010180008/09/20101400
Subject:
GRW/MWR/M1 - Incorrect instrument computer set-up
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
Starting late on 07/11 the instrument began to have very brief (< 1 min) data outages 
every few hours.  By 07/12 data had become noticeably incorrect, particularly the PWV, LWP, 
TB23, and TB31.  At ~17 Z on 0713 the missing data / no data available flags became more 
frequent.

The problem was identified as improper settings of the instrument computer and was solved 
on 8/9.
Measurements:grwmwrtipM1.a1:
  • tnd_nom31
  • vaptip
  • tnd31I
  • r23
  • tc23
  • tbsky23tip
  • tnd_nom23
  • tbsky31tip
  • tc31
  • tnd23I
  • r31
  • tnd31
  • tnd23
  • liqtip
grwmwrlosM1.b1:
  • Total water vapor along LOS path(vap)
  • tnd31
  • Total liquid water along LOS path(liq)
  • tnd23
  • tnd_nom31
  • 31.4 GHz sky brightness temperature(tbsky31)
  • tnd_nom23
  • 23.8 GHz sky brightness temperature(tbsky23)
  • tc23
  • tc31

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DQRID : D100830.1
Start DateStart TimeEnd DateEnd Time
07/20/2010120008/09/20101400
Subject:
GRW/MWR/M1 - Erratic brightness temperature
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
Around 12 Z on 7/20 both the PWV and 23.8 GHz brightness temp values began to diverge from 
those of the MWRP. By 7/22 both the LWP and 31.4 GHz brightness temp had followed suit. 
At 0600 Z on 7/22 multiple (10-20), brief (<=1 min) data outages began appearing hourly.  
The problem persisted intermittently until 8/9.

On 8/9, changes in the settings of the computer restored the proper functionality of the 
MWR software.
Measurements:grwmwrtipM1.a1:
  • tnd_nom31
  • vaptip
  • tnd31I
  • tc23
  • tbsky23tip
  • tnd_nom23
  • tbsky31tip
  • tc31
  • tnd23I
  • tnd31
  • tnd23
  • liqtip
grwmwrlosM1.b1:
  • Total water vapor along LOS path(vap)
  • tnd31
  • Total liquid water along LOS path(liq)
  • tnd23
  • tnd_nom31
  • 31.4 GHz sky brightness temperature(tbsky31)
  • tnd_nom23
  • 23.8 GHz sky brightness temperature(tbsky23)
  • tc23
  • tc31

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END OF DATA