DQRs for Session: 107582 User:sivaramanCompleted: 09-06-2007

Data Quality Reports for Session: 107582 User: sivaraman Completed: 09/06/2007

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020909.1	SGP/SONDE/C1 - Bad Temperature Sensor	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D020909.2	SGP/SONDE/C1 - Bad Temperature Sensor	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021006.1	Bad temperature sensor	sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030411.3	SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problems	sgplssondeC1.c1, sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D050912.2	SGP/SONDE/C1 - Temperature/RH incorrect	sgplssondeC1.c1, sgpsondewnpnC1.b1

DQRID : D020909.1

Start Date	Start Time	End Date	End Time
09/06/2002	1727	09/06/2002	1854

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 inside the instrument enclosure(rh) Surface dew point temperature(dp) sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) sgpqmemwrcolC1.c1: Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde) sgplssondeC1.c1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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DQRID : D020909.2

Start Date	Start Time	End Date	End Time
09/06/2002	0527	09/06/2002	0718

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 inside the instrument enclosure(rh) Surface dew point temperature(dp) sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) sgpqmemwrcolC1.c1: Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde) sgplssondeC1.c1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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DQRID : D021006.1

Start Date	Start Time	End Date	End Time
10/03/2002	1120	10/03/2002	1320

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: Dummy altitude for Zeb(alt) Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) Ascent Rate(asc) sgpsondewnpnC1.b1: Surface dew point temperature(dp) Relative humidity inside the instrument enclosure(rh) Ascent Rate(asc) Dry bulb temperature(tdry) Dummy altitude for Zeb(alt) sgplssondeC1.c1: Dummy altitude for Zeb(alt) Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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DQRID : D030411.3

Start Date	Start Time	End Date	End Time
04/01/2003	1730	04/01/2003	1930
04/02/2003	0530	04/02/2003	0730
04/02/2003	1130	04/02/2003	1330

Subject:	SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problems
DataStreams:	sgplssondeC1.c1, sgpsondeC1.00, 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: Mean Wind Speed(wspd) V-component(v_wind) Dummy altitude for Zeb(alt) base time(base_time) Relative humidity inside the instrument enclosure(rh) Ascent Rate(asc) U-component(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) lat(lat) lon(lon) Retrieved pressure profile(pres) sgpsondewnpnC1.b1: U-component(u_wind) Mean Wind Speed(wspd) lat(lat) Ascent Rate(asc) lon(lon) Time offset of tweaks from base_time(time_offset) V-component(v_wind) Dummy altitude for Zeb(alt) Surface dew point temperature(dp) base time(base_time) Relative humidity inside the instrument enclosure(rh) Retrieved pressure profile(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: lon(lon) Dummy altitude for Zeb(alt) base time(base_time) Retrieved pressure profile(pres) Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry) lat(lat) Time offset of tweaks from base_time(time_offset)

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DQRID : D050912.2

Start Date	Start Time	End Date	End Time
09/09/2005	1132	09/09/2005	1332

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 inside the instrument enclosure(rh) sgplssondeC1.c1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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