Data Quality Reports for Session: 110167 User: gaustad Completed: 01/29/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040822.1NSA/SONDE/C1 - This is a test sounding done using an RS80H radiosondensasondewnpnC1.b1
D041130.1NSA/SONDE/C1 - Test sounding using RS80HnsasondewnpnC1.b1
D041213.5NSA/SONDE/C1 - Incorrect surface altitudensasondeC1.00, nsasondewnpnC1.b1
D060928.4NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdrynsasondewnpnC1.b1


DQRID : D040822.1
Start DateStart TimeEnd DateEnd Time
08/20/2004184408/20/20041925
Subject:
NSA/SONDE/C1 - This is a test sounding done using an RS80H radiosonde
DataStreams:nsasondewnpnC1.b1
Description:
This was a sounding done using an RS80H radiosonde to test a special operational 
procedure.  There is nothing wrong with the data, though users should be aware that the sounding 
was not done using the current ARM standard RS90 radiosonde.
Measurements:nsasondewnpnC1.b1:
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • Ascent Rate(asc)
  • Dry bulb temperature(tdry)
  • V-component(v_wind)
  • base time(base_time)
  • Retrieved pressure profile(pres)
  • lat(lat)
  • U-component(u_wind)
  • lon(lon)
  • Surface dew point temperature(dp)
  • Wind Status(wstat)
  • Time offset of tweaks from base_time(time_offset)
  • Relative humidity inside the instrument enclosure(rh)
  • Dummy altitude for Zeb(alt)

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DQRID : D041130.1
Start DateStart TimeEnd DateEnd Time
11/29/2004230311/30/20040023
Subject:
NSA/SONDE/C1 - Test sounding using RS80H
DataStreams:nsasondewnpnC1.b1
Description:
This is a test sounding done using an old RS80H radiosonde rather than the production RS90 
version.  Although the sonde functioned normally, the RH data may be subject to a dry 
bias caused by the age of the sensor and possible contamination.
Measurements:nsasondewnpnC1.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D041213.5
Start DateStart TimeEnd DateEnd Time
04/28/2002000002/13/20042359
Subject:
NSA/SONDE/C1 - Incorrect surface altitude
DataStreams:nsasondeC1.00, nsasondewnpnC1.b1
Description:
The value of the station altitude (relative to mean sea level) is
incorrect in all NSA radiosonde files prior to 2/14/2004.  The correct
value is 8 m.  The incorrect value can be different.  Prior to 4/24/2002
(in platform nsaisssonde...) it was given as 12 m.  From 4/24/2002 to
2/13/2004 (in platform nsasondewnpn...) it is almost always given as
27 m (sometimes [rarely] 17 m).
Measurements:nsasondewnpnC1.b1:
  • Dummy altitude for Zeb(alt)
nsasondeC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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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 inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Surface dew point temperature(dp)

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