Data Quality Reports for Session: 103507 User: lesliemoy Completed: 01/04/2007


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D020909.1SGP/SONDE/C1 - Bad Temperature SensorsgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D020909.2SGP/SONDE/C1 - Bad Temperature SensorsgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021006.1Bad temperature sensorsgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030411.3SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problemssgpsondeC1.00, sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D050912.2SGP/SONDE/C1 - Temperature/RH incorrectsgplssondeC1.c1, sgpsondewnpnC1.b1


DQRID : D020909.1
Start DateStart TimeEnd DateEnd Time
09/06/2002172709/06/20021854
Subject:
SGP/SONDE/C1 - Bad Temperature Sensor
DataStreams:sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:
It appears that the temperature sensor broke upon launch and therefore the reported 
temperature is approximately 40 degC too low.
Measurements:sgpsondewnpnC1.a1:
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

sgpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)

sgpqmemwrcolC1.c1:
  • Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)

sgplssondeC1.c1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)


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DQRID : D020909.2
Start DateStart TimeEnd DateEnd Time
09/06/2002052709/06/20020718
Subject:
SGP/SONDE/C1 - Bad Temperature Sensor
DataStreams:sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:
It appears that the temperature sensor broke shortly after launch. Temperatures are offset 
by approxmiately (but not constantly) 40 degC.
Measurements:sgpsondewnpnC1.a1:
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Surface dew point temperature(dp)

sgpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)

sgpqmemwrcolC1.c1:
  • Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)

sgplssondeC1.c1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)


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DQRID : D021006.1
Start DateStart TimeEnd DateEnd Time
10/03/2002112010/03/20021320
Subject:
Bad temperature sensor
DataStreams:sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:
It appears that the temperture sensor broke a few seconds into flight.  This results in an 
unreasonably low temperature for the rest of the flight.  For some reason, the rh values 
also go missing shortly after launch.  Only the wind and pressure data are reliable.
Measurements:sgpsondewnpnC1.a1:
  • altitude above sea levelaltunits(alt)
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Ascent Rate(asc)

sgpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Ascent Rate(asc)
  • Dry-Bulb Temperature(tdry)
  • altitude above sea levelaltunits(alt)

sgplssondeC1.c1:
  • altitude above sea levelaltunits(alt)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)


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DQRID : D030411.3
Start DateStart TimeEnd DateEnd Time
04/01/2003173004/01/20031930
04/02/2003053004/02/20030730
04/02/2003113004/02/20031330
Subject:
SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problems
DataStreams:sgpsondeC1.00, sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:
These sonde launches where unsuccessful due to problems
with the antenna configuration resulting in signal loss
before the launch.
Measurements:sgpsondewnpnC1.a1:
  • surface wind speed(wspd)
  • model meridional wind velocity(v_wind)
  • altitude above sea levelaltunits(alt)
  • Time offset from base_time(base_time)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Ascent Rate(asc)
  • model zonal wind velocity(u_wind)
  • Wind Status(wstat)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
  • Time offset of tweaks from base_time(time_offset)
  • north latitude for all the input platforms.(lat)
  • east longitude for all the input platforms.(lon)
  • pressure at constant pressure surface(pres)

sgpsondewnpnC1.b1:
  • model zonal wind velocity(u_wind)
  • surface wind speed(wspd)
  • north latitude for all the input platforms.(lat)
  • Ascent Rate(asc)
  • east longitude for all the input platforms.(lon)
  • Time offset of tweaks from base_time(time_offset)
  • model meridional wind velocity(v_wind)
  • altitude above sea levelaltunits(alt)
  • Surface dew point temperature(dp)
  • Time offset from base_time(base_time)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • pressure at constant pressure surface(pres)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • Dry-Bulb Temperature(tdry)

sgpsondeC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

sgplssondeC1.c1:
  • east longitude for all the input platforms.(lon)
  • altitude above sea levelaltunits(alt)
  • Time offset from base_time(base_time)
  • pressure at constant pressure surface(pres)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)
  • north latitude for all the input platforms.(lat)
  • Time offset of tweaks from base_time(time_offset)


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DQRID : D050912.2
Start DateStart TimeEnd DateEnd Time
09/09/2005113209/09/20051332
Subject:
SGP/SONDE/C1 - Temperature/RH incorrect
DataStreams:sgplssondeC1.c1, sgpsondewnpnC1.b1
Description:
The temperature throughout this sounding is too high and as a result the RH values will be 
incorrect as well.  I'm not sure what is wrong here but the operators noted reasonable 
values (18.1 degC, 87%) in the log before launch.  Review of the raw data, however, shows 
the sonde reporting temperatures nearly 20 degC higher.  I suppose it is possible that 
the operator entered into the log the reference temperature from the GC25 ground check set 
rather than the temperature reported by the sonde - I can't think of any other 
explanation - there is no doubt that the temperature sensor on this sonde was bad.
Measurements:sgpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Dry-Bulb Temperature(tdry)
  • Relative humidity scaled, by total column amount from MWR(rh)

sgplssondeC1.c1:
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)


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