Data Quality Reports for Session: 108707 User: zwang84112 Completed: 11/01/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
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 : 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 inside the instrument enclosure(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 inside the instrument enclosure(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 inside the instrument enclosure(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 inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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