Data Quality Reports for Session: 130711 User: mwyant Completed: 10/05/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090522.1GRW/MWR/M1 - Loose mirrorgrwmwrlosM1.b1, grwmwrtipM1.a1
D100224.6GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficientsgrwmwrlosM1.b1, grwmwrtipM1.a1
D100326.2GRW/MWR/M1 - Incorrect ambient temperaturegrwmwrlosM1.b1, grwmwrtipM1.a1


DQRID : D090522.1
Start DateStart TimeEnd DateEnd Time
05/01/2009000006/16/20090745
Subject:
GRW/MWR/M1 - Loose mirror
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
The data from the MWR were suspicious and became progressively worse. The problem was 
traced back to the fact that the screw that keeps the mirror in place had become loose and 
the mirror was freely rotating. 

The mirror was tightened on 6/9/2009, however the measurements were noisy until 6/16, when 
the instrument was rebooted and all the connections checked. 

Measurements between 5/1 and 6/9 should not be used. Data between 6/9 and 6/16 are usable, 
although they are very noisy.
Measurements:grwmwrtipM1.a1:
  • vaptip
  • bb31
  • tbsky23tip
  • bbn23
  • bbn31
  • tbsky31tip
  • tipsky23
  • bb23
  • tipsky31
  • liqtip
grwmwrlosM1.b1:
  • sky23
  • bbn23
  • Total water vapor along LOS path(vap)
  • bbn31
  • Total liquid water along LOS path(liq)
  • sky31
  • 31.4 GHz sky brightness temperature(tbsky31)
  • bb31
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
  • bb23

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DQRID : D100224.6
Start DateStart TimeEnd DateEnd Time
05/01/2009000003/31/20101700
Subject:
GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficients
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
Retrieval coefficients were updated to screen for some bad soundings
Measurements:grwmwrtipM1.a1:
  • liqtip
grwmwrlosM1.b1:
  • Total liquid water along LOS path(liq)

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DQRID : D100326.2
Start DateStart TimeEnd DateEnd Time
02/09/2010104802/11/20101045
Subject:
GRW/MWR/M1 - Incorrect ambient temperature
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
The ambient temperature readings are incorrect.  Problem appeared to have started around 
10:48 GMT on 02/09, but was not really noticeable until slightly after 11 GMT, when tkair 
values dipped considerably.  

The dewblower was replaced on 2/11 and temperature readings returned to normal.
Measurements:grwmwrtipM1.a1:
  • tkair
grwmwrlosM1.b1:
  • tkair

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