Data Quality Reports for Session: 111426 User: sloehrer Completed: 04/04/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050105.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050201.2TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050913.3TWP/SONDE/C2 - Bad RH sensortwpsondewnpnC2.b1
D051122.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D051219.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060308.1TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060403.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060418.1TWP/SONDE/C2 - Bad RH in lower 8kmtwpsondewnpnC2.b1
D070308.3TWP/SONDE/C2 - Surface Temperature IncorrecttwpsondewnpnC2.b1
D070308.4TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1
D070313.2TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1
D070313.3TWP/SONDE/C1 - Surface RH value incorrecttwpsondewnpnC1.b1
D070329.2TWP/SONDE/C2 - Surface RH Value incorrecttwpsondewnpnC2.b1
D070404.1TWP/SONDE/C2 - Surface RH too hightwpsondewnpnC2.b1
D070428.1TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1
D070501.2TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1


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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DQRID : D050201.2
Start DateStart TimeEnd DateEnd Time
01/07/2005233001/08/20050102
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 12km).  The RH oscillates rapidly between low (~2 %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 : D050913.3
Start DateStart TimeEnd DateEnd Time
07/03/2005235007/04/20050024
07/10/2005234007/11/20050021
07/19/2005233207/20/20050016
Subject:
TWP/SONDE/C2 - Bad RH sensor
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below -50 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D051122.2
Start DateStart TimeEnd DateEnd Time
11/19/2005233411/20/20050153
11/21/2005233211/22/20050140
Subject:
TWP/SONDE/C2 - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)

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DQRID : D051219.2
Start DateStart TimeEnd DateEnd Time
12/07/2005115312/07/20051323
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)

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DQRID : D060308.1
Start DateStart TimeEnd DateEnd Time
01/15/2006114401/15/20061328
01/19/2006131801/19/20061320
01/22/2006114901/22/20061315
02/14/2006005502/14/20060207
02/21/2006023202/21/20060359
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)

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DQRID : D060403.2
Start DateStart TimeEnd DateEnd Time
03/27/2006004303/27/20060208
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)

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DQRID : D060418.1
Start DateStart TimeEnd DateEnd Time
04/10/2006024704/10/20060314
Subject:
TWP/SONDE/C2  - Bad RH in lower 8km
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D070308.3
Start DateStart TimeEnd DateEnd Time
01/02/2007112801/02/20071129
Subject:
TWP/SONDE/C2 - Surface Temperature Incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The first two temperature values in the datafile are incorrect.  It appears that the 
observer mis-typed the surface temperature as -27 instead of +27.  The next value was 8 which 
is also incorrect and was caused by the system interpolating from the incorrect surface 
value and what the sonde temperature sensor was reading.
Measurements:twpsondewnpnC2.b1:
  • Dry bulb temperature(tdry)

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DQRID : D070308.4
Start DateStart TimeEnd DateEnd Time
01/23/2007113001/23/20071131
Subject:
TWP/SONDE/C2 - Surface RH value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface RH value was incorrect.  It appears the observer mis-typed 70 instead of 80.  
This error also caused the dew point temperature to be incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D070313.2
Start DateStart TimeEnd DateEnd Time
03/08/2007235003/08/20072353
Subject:
TWP/SONDE/C2 - Surface RH value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface RH was reproted as 78%.  The value should have been in the low 50's.  It 
appears the observer did not allow the sonde to equilibrate to ambient conditions before 
taking the reading.  This error also caused an incorrect dew point.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D070313.3
Start DateStart TimeEnd DateEnd Time
03/08/2007000003/08/20070001
Subject:
TWP/SONDE/C1 - Surface RH value incorrect
DataStreams:twpsondewnpnC1.b1
Description:
The surface RH value of 77% when the value should have been in the low 60's.  It appears 
the observers did not allow the sonde to equilibrate to ambient conditions before 
collecting the surface data.  This error also caused the dew point to be incorrect.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D070329.2
Start DateStart TimeEnd DateEnd Time
03/28/2007231903/28/20072320
Subject:
TWP/SONDE/C2 - Surface RH Value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface value entered by the observers for RH (96%) is incorrect.  At the ascent time 
listed in the .ptu file the readings by the Sonde were around 65%.  This low RH value is 
supported by the nearby SMET tower RH reading of 71.8%.  This also caused the surface dew 
point to be incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D070404.1
Start DateStart TimeEnd DateEnd Time
04/03/2007233004/03/20072331
Subject:
TWP/SONDE/C2 - Surface RH too high
DataStreams:twpsondewnpnC2.b1
Description:
The surface Rh was entered as 94%.  The ascent time has 72% and this value is supported by 
RH values from the nearby SMET system.  This error also will affect the dew point.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)

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DQRID : D070428.1
Start DateStart TimeEnd DateEnd Time
04/27/2007114004/27/20071420
Subject:
TWP/SONDE/C2 - Broken temperature sensor at launch
DataStreams:twpsondewnpnC2.b1
Description:
Temperature sensor broken at launch.  All thermodynamic values are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
  • Wind Direction(deg)

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DQRID : D070501.2
Start DateStart TimeEnd DateEnd Time
04/30/2007235905/01/20070200
Subject:
TWP/SONDE/C2 - Broken temperature sensor at launch
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)

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END OF DATA