DQRID : D030114.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/11/2003053601/11/20030551Incorrect
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Subject:
SGP/SONDE/C1 - Bad RH Data
DataStreams:sgpsondewnpnC1.b1, sgpsondewnpnC1.a1
Description:
The RH values during the first 15 minutes of this sounding oscillate between reasonable 
values and near-zero values.  The oscillation is irregular and seems to be related to 
failure of the RH sensor heating process.  I have informed Vaisala of the problem and provided 
raw data files to them for analysis.
Suggestions: 
Near zero RH values are incorrect and the other RH values obtained during the first 

15 minutes of the sounding are suspect.  Because the problem is related to the heating 
circuit, we cannot recover the RH data when both RH sensors are heated.
Measurements:sgpsondewnpnC1.b1:
  • rh
  • dp
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sgpsondewnpnC1.a1:
  • rh
  • dp
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