Data Quality Reports for Session: 138556 User: pmeyers Completed: 11/03/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100224.6GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficientsgrwmwrlosM1.b1, grwmwrtipM1.a1
D100326.2GRW/MWR/M1 - Incorrect ambient temperaturegrwmwrlosM1.b1, grwmwrtipM1.a1
D100716.1GRW/MWR/M1 - Incorrect instrument computer set-upgrwmwrlosM1.b1, grwmwrtipM1.a1
D100830.1GRW/MWR/M1 - Erratic brightness temperaturegrwmwrlosM1.b1, grwmwrtipM1.a1
D100830.3GRW/MWR/M1 - Missing datagrwmwrlosM1.b1, grwmwrtipM1.a1


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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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
  • Radiation, longwave, brightness temperature, 23.8 GHz(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
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
  • tc23
  • tc31

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DQRID : D100830.3
Start DateStart TimeEnd DateEnd Time
07/04/2010160007/06/20101400
Subject:
GRW/MWR/M1 - Missing data
DataStreams:grwmwrlosM1.b1, grwmwrtipM1.a1
Description:
Data are missing and unrecoverable.
Measurements:grwmwrtipM1.a1:
  • vaptip
  • tc23
  • bbn23
  • wet_window
  • tnd_nom23
  • tbsky31tip
  • time
  • tipsky31
  • actel
  • bb31
  • tbsky23tip
  • tc31
  • r31
  • tnd31
  • tipsky23
  • bb23
  • tkbb
  • tkxc
  • time_offset
  • tknd
  • r23
  • actaz
  • base_time
  • tnd23
  • tkair
  • alt
  • lat
  • tnd_nom31
  • tnd31I
  • bbn31
  • tnd23I
  • lon
  • liqtip
grwmwrlosM1.b1:
  • IR Brightness Temperature(sky_ir_temp)
  • tnd31
  • bbn31
  • lon
  • time
  • bb23
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
  • tc23
  • base_time
  • alt
  • tkbb
  • sky31
  • bb31
  • tc31
  • sky23
  • wet_window
  • tknd
  • Total liquid water along LOS path(liq)
  • tnd_nom31
  • tkxc
  • tkair
  • tnd_nom23
  • bbn23
  • Total water vapor along LOS path(vap)
  • tnd23
  • lat
  • 31.4 GHz sky brightness temperature(tbsky31)
  • time_offset

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END OF DATA