Data Quality Reports for Session: 132359 User: matthias1j Completed: 01/06/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D061114.4TWP/MWR/C3 - Sun in field of view of radiometertwpmwrlosC3.b1, twpmwrtipC3.a1
D070412.3TWP/MWR/C1/C2 - Sun in the field of viewtwpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1
D081216.1TWP/MWR/C2 - Incorrect ambient temperature during raintwpmwrlosC2.b1, twpmwrtipC2.a1
D090114.4TWP/MWR/C1 - Ambient temperature data missingtwpmwrlosC1.b1, twpmwrtipC1.a1
D090224.4TWP/SONDE/C2 - Suspect RH valuestwpsondewnpnC2.b1
D090417.3TWP/MWR/C2 - Intermittent datatwpmwrlosC2.b1, twpmwrtipC2.a1
D090629.3TWP/SONDE/C1 - Wind data missingtwpsondewnpnC1.b1
D090629.4TWP/SONDE/C2 - Wind data missingtwpsondewnpnC2.b1


DQRID : D061114.4
Start DateStart TimeEnd DateEnd Time
10/20/2006000011/09/20060400
10/15/2008000011/08/20080000
10/15/2009000011/10/20090000
02/01/2010000003/01/20100000
Subject:
TWP/MWR/C3 - Sun in field of view of radiometer
DataStreams:twpmwrlosC3.b1, twpmwrtipC3.a1
Description:
Each day  around local noon (2-3 AM UTC), there is an increase in the brightness 
temperature due to the sun being in the field of view of the radiometer.
Measurements:twpmwrlosC3.b1:
  • Total liquid water along LOS path(liq)
  • 31.4 GHz sky brightness temperature(tbsky31)
  • Total water vapor along LOS path(vap)
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
twpmwrtipC3.a1:
  • tbskytip23
  • tbskytip31
  • tipsky23
  • liqtip
  • vaptip
  • tipsky31

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DQRID : D070412.3
Start DateStart TimeEnd DateEnd Time
03/07/2007000004/02/20072359
03/01/2008000004/02/20082359
09/10/2008000010/12/20080000
03/01/2009000004/02/20092359
09/11/2009000010/10/20092359
03/01/2010000004/02/20102359
Subject:
TWP/MWR/C1/C2 - Sun in the field of view
DataStreams:twpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1
Description:
Every day between around noon local time (usually between 1 and 2 AM UTC time) there is an 
increase in the brightness temperatures due to the sun in the field of view of the 
radiometer.

The effect lasts less than an hour around local noon (usually between 1 and 2 AM UTC 
time).  The effect appears as a smooth increase and decrease in brightness temperature.
Measurements:twpmwrtipC2.a1:
  • tipsky23
  • tipsky31
twpmwrtipC1.a1:
  • vaptip
  • liqtip
  • tbskytip23
  • tbskytip31
twpmwrlosC1.b1:
  • Total liquid water along LOS path(liq)
  • sky23
  • 31.4 GHz sky brightness temperature(tbsky31)
  • sky31
  • Total water vapor along LOS path(vap)
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
twpmwrlosC2.b1:
  • 31.4 GHz sky brightness temperature(tbsky31)
  • sky31
  • sky23
  • Total liquid water along LOS path(liq)
  • Total water vapor along LOS path(vap)
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)

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DQRID : D081216.1
Start DateStart TimeEnd DateEnd Time
10/09/2008010001/09/20090300
Subject:
TWP/MWR/C2 - Incorrect ambient temperature during rain
DataStreams:twpmwrlosC2.b1, twpmwrtipC2.a1
Description:
The ambient temperature was approximately 15 degree higher than what it should be when it 
was raining and the heater came. On Jan 9 2009 the dewblower was replaced which solved 
the problem.

The increased ambient temperature (tkair) was happening during times of rain and users 
should always disregard MWR data during rain events.  Therefore this DQR is colored 
transparent.
Measurements:twpmwrtipC2.a1:
  • tkair
twpmwrlosC2.b1:
  • tkair

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DQRID : D090114.4
Start DateStart TimeEnd DateEnd Time
12/03/2008190002/06/20090530
Subject:
TWP/MWR/C1 - Ambient temperature data missing
DataStreams:twpmwrlosC1.b1, twpmwrtipC1.a1
Description:
The ambient temperature readings (tkair) suddenly failed. The sensor was replaced on Feb 
6.
Measurements:twpmwrtipC1.a1:
  • tkair
twpmwrlosC1.b1:
  • tkair

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DQRID : D090224.4
Start DateStart TimeEnd DateEnd Time
01/08/2009233101/08/20092331
Subject:
TWP/SONDE/C2 - Suspect RH values
DataStreams:twpsondewnpnC2.b1
Description:
RH values only are suspect for the duration of this radiosonde flight, exhibiting a 
"sawtooth" pattern.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)

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DQRID : D090417.3
Start DateStart TimeEnd DateEnd Time
03/06/2009160003/14/20092200
Subject:
TWP/MWR/C2 - Intermittent data
DataStreams:twpmwrlosC2.b1, twpmwrtipC2.a1
Description:
There are several short data gaps (usually 2 to 7 hours) in the data due to computer 
malfunction. The problem was solved by replacing the computer.
Measurements:twpmwrtipC2.a1:
  • tipsky23
  • tkair
  • base_time
  • tnd_nom31
  • tkxc
  • actaz
  • wet_window
  • r23
  • tnd23I
  • tc23
  • time_offset
  • tnd_nom23
  • tnd23
  • lat
  • r31
  • bb23
  • bbn31
  • tkbb
  • bbn23
  • tnd31
  • tc31
  • tknd
  • alt
  • bb31
  • actel
  • tnd31I
  • lon
  • tipsky31
twpmwrlosC2.b1:
  • tnd23
  • sky23
  • Total liquid water along LOS path(liq)
  • bbn23
  • tkbb
  • tc23
  • tkxc
  • tnd31
  • bbn31
  • base_time
  • tnd_nom23
  • Temperature, Sky Infra-Red(sky_ir_temp)
  • lat
  • lon
  • time_offset
  • bb31
  • Temperature, brightness, longwave(ir_temp)
  • actel
  • wet_window
  • Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
  • sky31
  • 31.4 GHz sky brightness temperature(tbsky31)
  • tnd_nom31
  • tkair
  • tknd
  • Total water vapor along LOS path(vap)
  • bb23
  • alt
  • tc31
  • actaz

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DQRID : D090629.3
Start DateStart TimeEnd DateEnd Time
06/21/2009110006/24/20091100
Subject:
TWP/SONDE/C1 - Wind data missing
DataStreams:twpsondewnpnC1.b1
Description:
A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and not data was collected.  A workaround 
was developed to allow sondes to be launched without collecting wind data.
Measurements:twpsondewnpnC1.b1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • wstat
  • Mean Wind Speed(wspd)

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DQRID : D090629.4
Start DateStart TimeEnd DateEnd Time
06/21/2009110006/26/20091100
06/27/2009120006/27/20091200
Subject:
TWP/SONDE/C2 - Wind data missing
DataStreams:twpsondewnpnC2.b1
Description:
A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and not data was collected.  A workaround 
was developed to allow sondes to be launched without collecting wind data.
Measurements:twpsondewnpnC2.b1:
  • wstat
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • Mean Wind Speed(wspd)

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