DQRID : D050809.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/09/2005235407/20/20050000Suspect
more
Subject:
NSA/MWR/C1 - Possible loss of accuracy due to missing blower
DataStreams:nsamwrlosC1.b1, nsamwrtipC1.a1
Description:
On 7/09 the MWR blower failed. The blower prevents snow and liquid drop from accumulating 
on the window. Accumulation of snow or liquid results in a loss of accuracy of the 
instrument. The loss of accuracy has consequencies on the retrieved liquid water path and 
precipitable water vapor. Usually there will be an overestimation of liquid and vapor. The 
blower was repaired and reinstalled on 7/20. Between 7/9 and 7/20 the tkair variable is 
unavailable as well.
Suggestions: 
If the user notices unusual values between 7/9 and 7/20, he/she could compare the 

data with those from the MWRP (12-channel profiler). The profiler has also a sensor to 
measure air temperature. Therefore, data users who are interested in the tkair variable can 
also use measurements from the profiler.
Measurements:nsamwrtipC1.a1:
  • liqtip
  • tipsky31
  • tbskytip31
  • vaptip
  • wet_window
  • tkair
  • tbskytip23
  • tipsky23
more
nsamwrlosC1.b1:
  • liq
  • tkair
  • sky23
  • tbsky23
  • tbsky31
  • wet_window
  • vap
  • sky31
more

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