DQRID : D960722.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/19/1996053707/19/19960725Suspect
more
Subject:
bad pressure sensor
DataStreams:sgpsondewrpnB4.a0, sgpsondewrpnB4.a1
Description:
DQR No:                               Platform: sgpsondeB4

Subject: Bad pressure sensor 07/19/96 05:37

Date Submitted:  7/22/96
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: sgpsondewrpnB4/all
	What level data: (raw,a0,a1,b1,c1 etc):

    What location was the data collected at:  B4 (Vici)
 
    Period of time in question
        Begin Date  07/19/96   Time   05:37    (GMT)
        End Date    07/19/96   Time   07:25    (GMT)

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

It appears that the pressure sensor on this sonde 'jumped' immediately after
launch from the surface value of 941.8 hPa to 914.0 hPa.  This could result
from mechanical shock during launch.  In any event, the pressure values
throughout the sounding are incorrect, as will be the altitude, and
ascent rate values.  
 
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:sgpsondewrpnB4.a0:
  • rh
  • lat
  • base_time
  • tdry
  • deg
  • pres
  • lon
  • asc
  • wstat
  • wspd
  • dp
  • alt
  • time_offset
more
sgpsondewrpnB4.a1:
  • u_wind
  • tdry
  • pres
  • alt
  • asc
  • dp
  • deg
  • rh
  • wstat
  • base_time
  • wspd
  • lon
  • v_wind
  • time_offset
  • lat
more

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