Data Quality Reports for Session: 179152 User: dturner Completed: 08/22/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D060308.1TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1Incorrect
D060403.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1Incorrect
D060418.1TWP/SONDE/C2 - Bad RH in lower 8kmtwpsondewnpnC2.b1Suspect
D070308.3TWP/SONDE/C2 - Surface Temperature IncorrecttwpsondewnpnC2.b1Incorrect
D070308.4TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1Incorrect
D070313.2TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1Incorrect
D070329.2TWP/SONDE/C2 - Surface RH Value incorrecttwpsondewnpnC2.b1Incorrect
D070404.1TWP/SONDE/C2 - Surface RH too hightwpsondewnpnC2.b1Incorrect
D070428.1TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1Incorrect
D070501.2TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1Incorrect
D080925.1TWP/SONDE/C2 - Bad RH values throughout soundingtwpsondewnpnC2.b1Incorrect
D081114.1TWP/SONDE/C2 - Defective Temperature SensortwpsondewnpnC2.b1Incorrect


DQRID : D060308.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/19/2006131801/19/20061320Incorrect
01/15/2006114401/15/20061328Incorrect
02/14/2006005502/14/20060207Incorrect
02/21/2006023202/21/20060359Incorrect
01/22/2006114901/22/20061315Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)
  • Dry bulb temperature(tdry)

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DQRID : D060403.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/27/2006004303/27/20060208Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)
  • Dry bulb temperature(tdry)

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DQRID : D060418.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/10/2006024704/10/20060314Suspect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070308.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/02/2007112801/02/20071129Incorrect
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 Data Quality Metric
01/23/2007113001/23/20071131Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070313.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/08/2007235003/08/20072353Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070329.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/28/2007231903/28/20072320Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070404.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/03/2007233004/03/20072331Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070428.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/27/2007114004/27/20071420Incorrect
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:
  • Wind Direction(deg)
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)

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DQRID : D070501.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/30/2007235905/01/20070200Incorrect
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:
  • Humidity, relative, at 21-m height, 30-min avg(rh)
  • Dewpoint Temperature(dp)
  • Dry bulb temperature(tdry)

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DQRID : D080925.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/08/2008114509/08/20081145Incorrect
Subject:
TWP/SONDE/C2 - Bad RH values throughout sounding
DataStreams:twpsondewnpnC2.b1
Description:
RH values fluctuate largely in a stepping function throughout the sounding.  Suspect bad 
RH sensors.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative, at 21-m height, 30-min avg(rh)

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DQRID : D081114.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/04/2008114511/04/20081145Incorrect
Subject:
TWP/SONDE/C2 - Defective Temperature Sensor
DataStreams:twpsondewnpnC2.b1
Description:
Temperature sensor shows a +30C offset for duration of flight.
Measurements:twpsondewnpnC2.b1:
  • Dry bulb temperature(tdry)

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