DQRID : D010227.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/16/1999090002/09/20002100Suspect
01/16/1999090003/08/19992100Suspect
12/07/2000000012/17/20002359Suspect
more
Subject:
TWP/MWR/C2 - Excessive wet_window flags
DataStreams:twpmwrtipC2.a1, twpmwrlosC2.b1
Description:
The wet_window flag is set high more than expected from the measured value of liquid water 
path. This may be caused by dew or, if the heater sensivity is slightly misadjusted, by 
the diurnal variation in ambient temperature.

The "wet_window" flag is an indicator of moisture on the MWR window which invalidates the 
measurements of precipitable water vapor and liquid water path. Sometimes this flag can 
be incorrectly set high or low if the heater sensivity is slightly misadjusted. The heater 
adjustment is a resistive device that is dependent on ambient temperature. Another 
indicator of moisture on the window is unreasonably high ( > 3*liquid_retrieval_rms_accuracy ) 
values of "liq".
Suggestions: 
Measurements:twpmwrtipC2.a1:
  • wet_window
more
twpmwrlosC2.b1:
  • wet_window
more

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