DQRID : D070412.3
Start DateStart TimeEnd DateEnd Time
09/11/2009000010/10/20092359
03/01/2010000004/02/20102359
09/10/2008000010/12/20080000
03/01/2008000004/02/20082359
03/01/2009000004/02/20092359
03/07/2007000004/02/20072359
03/01/2011000004/02/20112359
09/13/2011000010/09/20110000
more
Subject:
TWP/MWR/C1/C2 - Sun in the field of view
DataStreams:twpmwrtipC1.a1, twpmwrlosC1.b1, twpmwrtipC2.a1, twpmwrlosC2.b1
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.
Suggestions: 
Disregard the affected data.
Measurements:twpmwrtipC2.a1:
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz sky signal(tipsky23)
more
twpmwrlosC1.b1:
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Total water vapor along LOS path(vap)
  • 31.4 GHz sky signal(sky31)
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz sky signal(sky23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
more
twpmwrtipC1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
more
twpmwrlosC2.b1:
  • Total water vapor along LOS path(vap)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz sky signal(sky23)
  • 31.4 GHz sky signal(sky31)
more

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