Data Quality Reports for Session: 101969 User: vmattioli Completed: 10/09/2006

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050624.5PYE/SONDE/M1 - Reprocess: Incorrect surface temperature and RHpyelssondeM1.c1, pyesondewnpnM1.b1
D050811.6PYE/SONDE/M1 - Broken RH sensorpyesondewnpnM1.b1
D050823.1PYE/SONDE/M1 - Bad temperature and RHpyesondewnpnM1.b1
D050912.3PYE/SONDE/M1 - Bad RH sensorpyesondewnpnM1.b1
D050912.4PYE/SONDE/M1 - Bad RH sensorpyesondewnpnM1.b1


DQRID : D050624.5
Start DateStart TimeEnd DateEnd Time
05/02/2005112605/02/20051127
06/04/2005172906/04/20051903
06/05/2005112806/06/20051254
06/11/2005172806/12/20050143
06/13/2005112706/13/20051136
Subject:
PYE/SONDE/M1 - Reprocess: Incorrect surface temperature and RH
DataStreams:pyelssondeM1.c1, pyesondewnpnM1.b1
Description:
This DQR applies to ten soundings done during the indicated time periods.  In all cases, 
the operators entered the indoor temperature rather than the outdoor temperature and RH as 
the first point in the sounding.  This distorts the temperature and RH measurements in 
the lowest part of the profile.
Measurements:pyesondewnpnM1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
pyelssondeM1.c1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)

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DQRID : D050811.6
Start DateStart TimeEnd DateEnd Time
08/02/2005112908/02/20051225
Subject:
PYE/SONDE/M1 - Broken RH sensor
DataStreams:pyesondewnpnM1.b1
Description:
One of the RH sensors on this radiosonde was bad.  The RH oscillates rapidly between near 
0 and ambient up to approximately 11 km.  The near-zero values are incorrect.
Measurements:pyesondewnpnM1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

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DQRID : D050823.1
Start DateStart TimeEnd DateEnd Time
06/30/2005052806/30/20050711
Subject:
PYE/SONDE/M1 - Bad temperature and RH
DataStreams:pyesondewnpnM1.b1
Description:
The temperature appears to be approximately 10 degC too high during the entire sounding.  
This also causes the RH to be too low.  Most likely the problem was a bad temperature 
sensor.
Measurements:pyesondewnpnM1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)

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DQRID : D050912.3
Start DateStart TimeEnd DateEnd Time
08/31/2005113008/31/20051140
Subject:
PYE/SONDE/M1 - Bad RH sensor
DataStreams:pyesondewnpnM1.b1
Description:
The RH sensor heating circuit failed on this sounding.  RH values during the first part of 
the sounding oscillate between a reasonable value and a very low value.  It appears that 
(a) the heating was out of phase, and (b) incorrect values were being reported during 
the first 10 minutes or so of flight.
Measurements:pyesondewnpnM1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

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DQRID : D050912.4
Start DateStart TimeEnd DateEnd Time
08/29/2005112808/29/20051340
Subject:
PYE/SONDE/M1 - Bad RH sensor
DataStreams:pyesondewnpnM1.b1
Description:
Two problems here - failure of the RH sensor heating circuit and a bad RH sensor.
Measurements:pyesondewnpnM1.b1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

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