Data Quality Reports for Session: 124578 User: sbenson Completed: 11/30/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040228.1TWP/SONDE/C1 - Broken temperature sensortwpsondewnpnC1.b1
D040228.3TWP/SONDE/C1 - Bad RH sensorstwpsondewnpnC1.b1
D040606.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.2TWP/SONDE/C1 - Bad RH in short interval alofttwpsondewnpnC1.b1
D040711.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D041011.3TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050105.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1


DQRID : D040228.1
Start DateStart TimeEnd DateEnd Time
02/07/2004234202/08/20040115
02/09/2004113302/09/20041233
04/05/2004233204/06/20040105
04/22/2004115604/22/20041317
04/24/2004113004/24/20041312
04/29/2004113704/29/20041312
04/30/2004233605/01/20040112
05/03/2004233105/04/20040105
05/05/2004113505/05/20041319
05/07/2004113205/07/20041315
05/11/2004114205/11/20041311
05/12/2004114505/12/20041206
05/18/2004113005/18/20041321
07/10/2004113007/11/20041255
07/13/2004113907/13/20041320
07/16/2004234607/17/20040107
07/22/2004235507/23/20040140
07/26/2004234107/27/20040115
08/14/2004233008/15/20040104
08/22/2004233508/23/20040105
09/05/2004234009/06/20040119
09/14/2004232809/14/20042329
09/17/2004233209/18/20040102
10/28/2004233610/29/20040057
11/28/2004235211/29/20040044
Subject:
TWP/SONDE/C1 - Broken temperature sensor
DataStreams:twpsondewnpnC1.b1
Description:
The temperature sensor on these radiosondes broke after launch
All the temperature-related data are incorrect.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)

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DQRID : D040228.3
Start DateStart TimeEnd DateEnd Time
02/06/2004234102/06/20040130
Subject:
TWP/SONDE/C1 - Bad RH sensors
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 12km).  The RH oscillates rapidly in a 20% range and the 
oscillation seems to stop when the temperature is below ~45 degC.  These are symptoms of 
failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D040606.1
Start DateStart TimeEnd DateEnd Time
06/03/2004113206/03/20041212
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~15 %RH) and 
not so low (~50 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D040627.1
Start DateStart TimeEnd DateEnd Time
06/04/2004001006/23/20042330
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~0 %RH) and 
not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D040627.2
Start DateStart TimeEnd DateEnd Time
06/21/2004001006/21/20040011
Subject:
TWP/SONDE/C1  - Bad RH in short interval aloft
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit on this sonde failed about 31 minutes into 
the flight.  The RH values look reasonable from the surface to approximately 8.25 km at 
which point they begin to oscillate between 0 and 40%.  This behavior stops when the sonde 
reaches approximately 11.0km when the air temperature drops below -40 degC.  The 
oscillation stops at that point, though the RH remains higher than might be expected even under 
supersaturated conditions.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D040711.1
Start DateStart TimeEnd DateEnd Time
06/30/2004113006/30/20041204
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~2 %RH) and 
not so low (~90 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D041011.3
Start DateStart TimeEnd DateEnd Time
10/08/2004113110/08/20041200
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~1 %RH) and 
high (~80 %RH).  According to Vaisala these are symptoms of failure in the ASIC 
(application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D050105.1
Start DateStart TimeEnd DateEnd Time
12/30/2004233012/31/20040108
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~5 %RH) and 
not so low (~70 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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