Data Quality Reports for Session: 108355 User: gaun Completed: 10/14/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D000625.1SGP/SONDE/C1 - Operator used wrong calibration tapesgpsondeC1.00, sgpsondeC1.a0, sgpsondeC1.a1, sgpsondewndcalcC1.c1, sgpsondewrpnC1.00,
sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D000801.2SGP/SONDE/C1 - Incorrect absolute pressuresgpsondewndcalcC1.c1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1


DQRID : D000625.1
Start DateStart TimeEnd DateEnd Time
06/23/2000233006/24/20000100
Subject:
SGP/SONDE/C1 - Operator used wrong calibration tape
DataStreams:sgpsondeC1.00, sgpsondeC1.a0, sgpsondeC1.a1, sgpsondewndcalcC1.c1, sgpsondewrpnC1.00,
sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
It appears as if the operators had a problem with the original sounding
and launched a second radiosonde.  Apparently they used the calibration
tape that came with the first radiosonde (serial number 943156405) in
place of the one that was correct for the second radiosonde (sn 943156406)
and all the data are bad after the first sample (surface values).
Measurements:sgpsondewrpnC1.a0:
  • Retrieved pressure profile(pres)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • Ascent Rate(asc)
  • Dry bulb temperature(tdry)
  • lon(lon)
  • Wind Status(wstat)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dummy altitude for Zeb(alt)
  • Wind Direction(deg)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
sgpsondeC1.a0:
  • Dummy altitude for Zeb(alt)
  • Surface dew point temperature(dp)
  • Ascent Rate(asc)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lat(lat)
  • base time(base_time)
  • lon(lon)
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • Wind Direction(deg)
sgpsondewrpnC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpsondewndcalcC1.c1:
  • W-to-E Component of wind, calculated(u_wind_calc)
  • lon(lon)
  • lat(lat)
  • Flags for input v_wind values(v_wind_flags)
  • Flags for input u_wind values(u_wind_flags)
  • base time(base_time)
  • S-to-N Component of Wind, calculated(v_wind_calc)
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • Dummy altitude for Zeb(alt)
sgpsondeC1.a1:
  • Dummy altitude for Zeb(alt)
  • Relative humidity inside the instrument enclosure(rh)
  • Ascent Rate(asc)
  • base time(base_time)
  • Mean Wind Speed(wspd)
  • U-component(u_wind)
  • Wind Status(wstat)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • Retrieved pressure profile(pres)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • V-component(v_wind)
sgpsondeC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Ascent Rate(asc)
  • Relative humidity inside the instrument enclosure(rh)
  • Dummy altitude for Zeb(alt)
  • Wind Direction(deg)
  • lat(lat)
  • lon(lon)
  • V-component(v_wind)
  • Time offset of tweaks from base_time(time_offset)
  • Wind Status(wstat)
  • Retrieved pressure profile(pres)
  • U-component(u_wind)
  • Dry bulb temperature(tdry)
  • base time(base_time)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)

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DQRID : D000801.2
Start DateStart TimeEnd DateEnd Time
07/25/2000053307/25/20000724
Subject:
SGP/SONDE/C1 - Incorrect absolute pressure
DataStreams:sgpsondewndcalcC1.c1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
The surface pressure (983.5 hPa) reported by this radiosonde (sn 94315713)
is substantially higher than that reported by the THWAPS (~977) or by the
sondes used in the previous and following soundings (976.6, 977.3).  This
may be a calibration problem or a mechanic problem on launch.  The pressure
values reported in the remainder of the sounding are consistent with the
reported surface pressure, so the altitudes should be correct.  The
absolute pressure values may be high by about 5 hPa.
Measurements:sgpsondewrpnC1.a0:
  • Retrieved pressure profile(pres)
sgpsondewrpnC1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpsondewndcalcC1.c1:
  • Retrieved pressure profile(pres)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)

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