Data Quality Reports for Session: 138290 User: achase Completed: 10/25/2011


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070412.3TWP/MWR/C1/C2 - Sun in the field of viewtwpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1
D081013.2TWP/MWR/C1 - Short periods of wrong ambient temperaturetwpmwrlosC1.b1, twpmwrtipC1.a1
D090114.4TWP/MWR/C1 - Ambient temperature data missingtwpmwrlosC1.b1, twpmwrtipC1.a1


DQRID : D070412.3
Start DateStart TimeEnd DateEnd Time
03/07/2007000004/02/20072359
03/01/2008000004/02/20082359
09/10/2008000010/12/20080000
03/01/2009000004/02/20092359
09/11/2009000010/10/20092359
03/01/2010000004/02/20102359
03/01/2011000004/02/20112359
Subject:
TWP/MWR/C1/C2 - Sun in the field of view
DataStreams:twpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1
Description:
Every day between around noon local time (usually between 1 and 2 AM UTC time) there is an 
increase in the brightness temperatures due to the sun in the field of view of the 
radiometer.

The effect lasts less than an hour around local noon (usually between 1 and 2 AM UTC 
time).  The effect appears as a smooth increase and decrease in brightness temperature.
Measurements:twpmwrtipC2.a1:
  • tipsky23
  • tipsky31

twpmwrtipC1.a1:
  • vaptip
  • liqtip
  • tbskytip23
  • tbskytip31

twpmwrlosC1.b1:
  • Total liquid water along LOS path(liq)
  • sky23
  • 31.4 GHz sky brightness temperature(tbsky31)
  • sky31
  • Total water vapor along LOS path(vap)
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)

twpmwrlosC2.b1:
  • 31.4 GHz sky brightness temperature(tbsky31)
  • sky31
  • sky23
  • Total liquid water along LOS path(liq)
  • Total water vapor along LOS path(vap)
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)


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DQRID : D081013.2
Start DateStart TimeEnd DateEnd Time
09/01/2008000009/30/20082359
Subject:
TWP/MWR/C1 - Short periods of wrong ambient temperature
DataStreams:twpmwrlosC1.b1, twpmwrtipC1.a1
Description:
During this month there are a few intermittent instances of bad ambient temperature 
readings. I will summarize here these short time ranges:
20080909 between 02:00 and 03:00 UTC
20080909 between 09:00 and 14:00 UTC

Additionally the ambient temperature has short but frequent data gaps.  The data gaps are 
very short (less than one hour). Users could interpolate missing data or use alternative 
sensors such as the surface meteorological data available for the site.
Measurements:twpmwrtipC1.a1:
  • tkair

twpmwrlosC1.b1:
  • tkair


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DQRID : D090114.4
Start DateStart TimeEnd DateEnd Time
12/03/2008190002/06/20090530
Subject:
TWP/MWR/C1 - Ambient temperature data missing
DataStreams:twpmwrlosC1.b1, twpmwrtipC1.a1
Description:
The ambient temperature readings (tkair) suddenly failed. The sensor was replaced on Feb 
6.
Measurements:twpmwrtipC1.a1:
  • tkair

twpmwrlosC1.b1:
  • tkair


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END OF DATA