DQRID : D060811.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/19/2006174508/19/20061746Incorrect
08/11/2006052508/11/20060526Incorrect
07/30/2006052207/30/20060523Incorrect
08/01/2006052008/01/20060521Incorrect
08/21/2006053008/21/20060531Incorrect
08/04/2006053208/04/20060533Incorrect
08/20/2006172908/20/20061730Incorrect
08/19/2006053808/19/20060539Incorrect
08/09/2006052708/09/20060528Incorrect
08/17/2006053508/17/20060536Incorrect
08/22/2006052408/22/20060525Incorrect
08/18/2006051608/18/20060517Incorrect
08/06/2006052808/06/20060529Incorrect
08/20/2006053208/20/20060533Incorrect
08/08/2006051708/08/20060518Incorrect
08/15/2006053408/15/20060535Incorrect
more
Subject:
NSA/SONDE/C1 - Bad surface RH and temperature values
DataStreams:nsasondewnpnC1.b1
Description:
This is a subtle problem that might escape notice.  For the identified sonde launches, the 
ground station lost its signal between the time it was removed from the ground check set 
and the time it was launched.  As a result, the software, which automatically determines 
the launch time and surface conditions at time of launch mistakenly used values of 
temperature and RH representative of the ground check set and the GW rather than of the 
ambient conditions before launch.  The bad values influenced only the first few samples and the 
remainder of the sounding values are correct.  

A procedural problem was identified and corrected.
Suggestions: 
Carefully review the first few samples of the profile and either ignore them or 

replace them with values extrapolated from later samples.
Measurements:nsasondewnpnC1.b1:
  • tdry
  • dp
  • rh
more

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