DQRID : D960809.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/06/1996173008/06/19961730Suspect
more
Subject:
Questionable surface pressure sounding
DataStreams:sgpsondewrpnB1.a1, sgpsondewrpnB1.a0
Description:
DQR No:                               Platform: sgpsondeB1

Subject: Questionable surface pressure sounding BF1 08/06/96:17:30

Date Submitted:  8/9/96
Submitted By:                         _X_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other _____________________________
 
For questions or problems, please contact the ARM Experiment Center at
509-375-6898 or via email at dqr@arm.gov.

Platform/Measurement: sgpsondewrpnB1/all
    What level data: (raw,a0,a1,b1,c1 etc):

    What location was the data collected at:  BF1 Hillsboro
 
    Period of time in question
        Begin Date  08/06/96   Time   17:30    (GMT)
        End Date               Time            (GMT)

 Data should be labeled:
 _X_  questionable                      ___  All data fields affected
 ___  incorrect                         _X_  Only some data fields affected
 ___  wrong calibration
 ___  others 
 
 Discussion of Problem:

The surface pressure for this sounding was entered by the operator as 967.8
hPa. The first pressure value reported by the sonde is 956.5 hPa. I cannot
tell if the operator entered the surface pressure incorrectly or if the
sonde pressure sensor jumped after launch. In any event, the difference 
between the surface sample and the first sonde sample exceeds our 
criterion for flagging.

Note that this will affect the altitude calculation throughout the sounding.
 
Other observations/measurements impacted by this problem:

None

Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.)

Flag data.
Suggestions: 
Measurements:sgpsondewrpnB1.a1:
  • pres
  • lat
  • tdry
  • alt
  • asc
  • dp
  • time_offset
  • base_time
  • deg
  • u_wind
  • wstat
  • rh
  • lon
  • v_wind
  • wspd
more
sgpsondewrpnB1.a0:
  • base_time
  • rh
  • wspd
  • deg
  • lon
  • asc
  • time_offset
  • tdry
  • lat
  • wstat
  • dp
  • pres
  • alt
more

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