Data Quality Reports for Session: 119183 User: jcomstock Completed: 04/28/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
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
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 : 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 : 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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