Data Quality Reports for Session: 105020 User: vmattioli Completed: 04/03/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060928.4NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdrynsasondewnpnC1.b1
D070124.1NSA/SONDE/C1 - Incorrect surface RH valuensasondewnpnC1.b1


DQRID : D060928.4
Start DateStart TimeEnd DateEnd Time
09/29/2006050012/31/99992359
Subject:
NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry
DataStreams:nsasondewnpnC1.b1
Description:
The output precision of the following variables was increased 20060929:

   alt	changed from 1m to 0.1m
   dp	changed from 0.1degC to 0.01degC
   pres changed from 0.1 hPa to 0.01 hPa
   RH	changed from 1%RH to 0.01%RH
   tdry changed from .1degC to 0.01degC

Note that the increase in precision does not necessarily imply an increase
in accuracy.  Users are cautioned to continue to use their best scientific
judgement when using these or any other data.
Measurements:nsasondewnpnC1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)
  • altitude above sea levelaltunits(alt)
  • pressure at constant pressure surface(pres)
  • Surface dew point temperature(dp)

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DQRID : D070124.1
Start DateStart TimeEnd DateEnd Time
12/29/2006051712/29/20060518
Subject:
NSA/SONDE/C1 - Incorrect surface RH value
DataStreams:nsasondewnpnC1.b1
Description:
For an unknown reason the surface RH was reported a 0%.  Becuase these values are entered 
automatically by the system, this is NOT likely an operator error.  Examination of the 
raw data shows that the surface RH at launch time was approximately 81.2 %RH.
Measurements:nsasondewnpnC1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

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