DQRs for Session: 140039 User:dykemaCompleted: 01-25-2012

Data Quality Reports for Session: 140039 User: dykema Completed: 01/25/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020909.1	SGP/SONDE/C1 - Bad Temperature Sensor	sgpqmemwrcolC1.c1, sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D020909.2	SGP/SONDE/C1 - Bad Temperature Sensor	sgpqmemwrcolC1.c1, sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021006.1	Bad temperature sensor	sgplssondeC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021117.1	SGP/SONDE/C1 - Questionable RH: CF sounding 11/13/2002:2044	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021121.1	SGP/SONDE/C1 - Contaminated by interference	sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021123.2	SGP/SONDE/C1 - Interference CF sounding 20021120:0225	sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D021201.1	SGP/SONDE/C1 - Questionable RH CF sounding 0211211:1130	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030114.1	SGP/SONDE/C1 - Bad RH Data	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030122.1	SGP/SONDE/C1 - Broken temperature sensor SGP/CF sounding	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030206.5	SGP/SONDE/C1 - Bad temperature/RH	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030330.1	SGP/Sonde/C1 - Bad temperature, RH	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030409.1	SGP/Sonde/C1 - Bad RH in sounding	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030411.1	SGP/Sonde/C1 - Sondes launched an hour early	sgpsondewnpnC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030411.2	SGP/Sonde/C1 - Incorrect surface temperature on CF sounding	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030411.3	SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problems	sgplssondeC1.c1, sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030419.2	SGP/SONDE/C1 - Broken Temperature Sensor	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030427.1	SGP/SONDE/C1 - Broken temperature sensor	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D030507.3	SGP/SONDE/C1 - Broken temperature sensors	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D060928.3	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry	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:	sgpqmemwrcolC1.c1, sgplssondeC1.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:	sgplssondeC1.c1: Humidity, relative(rh) Dry Bulb Temperature(tdry) sgpqmemwrcolC1.c1: Water vapor, total integrated from radiosonde(integ_vap_sonde) sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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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:	sgpqmemwrcolC1.c1, sgplssondeC1.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:	sgplssondeC1.c1: Humidity, relative(rh) Dry Bulb Temperature(tdry) sgpqmemwrcolC1.c1: Water vapor, total integrated from radiosonde(integ_vap_sonde) sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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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:	sgplssondeC1.c1: Humidity, relative(rh) Dry Bulb Temperature(tdry) alt sgpsondewnpnC1.b1: Dewpoint Temperature(dp) Dry Bulb Temperature(tdry) asc alt Humidity, relative(rh) sgpsondewnpnC1.a1: Dewpoint Temperature(dp) Humidity, relative(rh) asc Dry Bulb Temperature(tdry) alt

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DQRID : D021117.1

Start Date	Start Time	End Date	End Time
11/13/2002	2044	11/13/2002	2205

Subject:	SGP/SONDE/C1 - Questionable RH: CF sounding 11/13/2002:2044
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The RH data in this sounding is erratic between 2km and 10 km, oscillating between reasonable values (~40%RH) and zero. I certainly doubt that this is a real, heretofore unreported, atmospheric phenomenon so I have to conclude that something is probably wrong with the sensor. I have not seen this behavior before. One would have to look at the absolutely raw RH data to explore further.
Measurements:	sgpsondewnpnC1.b1: Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D021121.1

Start Date	Start Time	End Date	End Time
11/19/2002	1423	11/19/2002	1623
11/19/2002	1726	11/19/2002	1917
11/19/2002	2026	11/19/2002	2204

Subject:	SGP/SONDE/C1 - Contaminated by interference
DataStreams:	sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	These three soundings are contaminated by interference from another radiosonde. It is not clear why; this doesn't usually happen at the CF where the operators are very experienced and frequency separation is not usually a problem.
Measurements:	sgpsondeC1.00: Raw data stream - documentation not supported sgpsondewnpnC1.b1: Dewpoint Temperature(dp) asc Pressure, atmospheric, constant value of model level, RUC model output(pres) Eastward Wind Component(u_wind) Dry Bulb Temperature(tdry) lon Mean Wind Speed(wspd) base_time Wind Direction(deg) Northward Wind Component(v_wind) time_offset lat alt wstat Humidity, relative(rh) sgpsondewnpnC1.a1: lon Dewpoint Temperature(dp) Wind Direction(deg) wstat Humidity, relative(rh) Mean Wind Speed(wspd) asc Northward Wind Component(v_wind) alt lat Eastward Wind Component(u_wind) base_time time_offset Dry Bulb Temperature(tdry) Pressure, atmospheric, constant value of model level, RUC model output(pres)

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DQRID : D021123.2

Start Date	Start Time	End Date	End Time
11/20/2002	0225	11/20/2002	0412

Subject:	SGP/SONDE/C1 - Interference CF sounding 20021120:0225
DataStreams:	sgpsondeC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	Like several soundings on 11/19, this sounding was affected by interference from another radiosonde.
Measurements:	sgpsondeC1.00: Raw data stream - documentation not supported sgpsondewnpnC1.b1: Dewpoint Temperature(dp) asc Pressure, atmospheric, constant value of model level, RUC model output(pres) Eastward Wind Component(u_wind) Dry Bulb Temperature(tdry) lon Mean Wind Speed(wspd) base_time Wind Direction(deg) Northward Wind Component(v_wind) time_offset lat alt wstat Humidity, relative(rh) sgpsondewnpnC1.a1: lon Dewpoint Temperature(dp) Wind Direction(deg) wstat Humidity, relative(rh) Mean Wind Speed(wspd) asc Northward Wind Component(v_wind) alt lat Eastward Wind Component(u_wind) base_time time_offset Dry Bulb Temperature(tdry) Pressure, atmospheric, constant value of model level, RUC model output(pres)

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DQRID : D021201.1

Start Date	Start Time	End Date	End Time
11/21/2002	1130	11/21/2002	1311

Subject:	SGP/SONDE/C1 - Questionable RH CF sounding 0211211:1130
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The RH samples in this sounding oscillate between reasonable values (60-80%) and zero. This may be a problem with the RH sensor or the software that alternates between the heated and non-heated RH elements. In either case, the reported values are questionable. More investigation of the raw binary data would be required to diagnose further.
Measurements:	sgpsondewnpnC1.b1: Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030114.1

Start Date	Start Time	End Date	End Time
01/11/2003	0536	01/11/2003	0551

Subject:	SGP/SONDE/C1 - Bad RH Data
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The RH values during the first 15 minutes of this sounding oscillate between reasonable values and near-zero values. The oscillation is irregular and seems to be related to failure of the RH sensor heating process. I have informed Vaisala of the problem and provided raw data files to them for analysis.
Measurements:	sgpsondewnpnC1.b1: Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030122.1

Start Date	Start Time	End Date	End Time
01/19/2003	1134	01/19/2003	1259

Subject:	SGP/SONDE/C1 - Broken temperature sensor SGP/CF sounding
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The radiosonde temperature sensor apparently broke during launch. This results in bad temperature, dew point, and rh data.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030206.5

Start Date	Start Time	End Date	End Time
02/02/2003	1732	02/02/2003	1832

Subject:	SGP/SONDE/C1 - Bad temperature/RH
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The temperature sensor broke shortly after launch. All temperature and RH-related data are incorrect.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030330.1

Start Date	Start Time	End Date	End Time
03/20/2003	1731	03/20/2003	1904
03/20/2003	1131	03/20/2003	1140
03/18/2003	1132	03/18/2003	1322

Subject:	SGP/Sonde/C1 - Bad temperature, RH
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	These three soundings all show the effects of a temperature sensor broken at launch. The temperature, RH, dew-point values all are incorrect.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030409.1

Start Date	Start Time	End Date	End Time
04/06/2003	1144	04/06/2003	1203

Subject:	SGP/Sonde/C1 - Bad RH in sounding
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The RH sensor heating circuit was out of synch from about 400 sec after launch until the circuit was turned off whent he sounding temperature reached approximately 233 degK (-40 degC) about 1500 sec after launch. During this time period the reported RH oscillates between reasonable values and near-zero values.
Measurements:	sgpsondewnpnC1.b1: Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030411.1

Start Date	Start Time	End Date	End Time
04/06/2003	2200	04/07/2003	0700

Subject:	SGP/Sonde/C1 - Sondes launched an hour early
DataStreams:	sgpsondewnpnC1.00, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	It looks like someone forgot to set his/her clock ahead. The sounding that should have been done at 23:30 UTC on 4/6 was done at 22:38 and the following sounding, which should have been done at 0530 on 4/7 was done at 04:31. The subsequent soundings all are done at the correct times.
Measurements:	sgpsondewnpnC1.00: Raw data stream - documentation not supported sgpsondewnpnC1.b1: Dewpoint Temperature(dp) asc Pressure, atmospheric, constant value of model level, RUC model output(pres) Eastward Wind Component(u_wind) Dry Bulb Temperature(tdry) lon Mean Wind Speed(wspd) base_time Wind Direction(deg) Northward Wind Component(v_wind) time_offset lat alt wstat Humidity, relative(rh) sgpsondewnpnC1.a1: lon Dewpoint Temperature(dp) Wind Direction(deg) wstat Humidity, relative(rh) Mean Wind Speed(wspd) asc Northward Wind Component(v_wind) alt lat Eastward Wind Component(u_wind) base_time time_offset Dry Bulb Temperature(tdry) Pressure, atmospheric, constant value of model level, RUC model output(pres)

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DQRID : D030411.2

Start Date	Start Time	End Date	End Time
04/06/2003	2238	04/06/2003	2238

Subject:	SGP/Sonde/C1 - Incorrect surface temperature on CF sounding
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	It appears that the operator entered an incorrect value for surface temperature. Rather than 43.2 degC in the file, the value is most likely 19. degC (thwaps reading 19.4, first sonde reading aloft 18.6).
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) sgpsondewnpnC1.a1: 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:	sgplssondeC1.c1: Humidity, relative(rh) lat Pressure, atmospheric, constant value of model level, RUC model output(pres) Dry Bulb Temperature(tdry) alt time_offset lon base_time sgpsondeC1.00: Raw data stream - documentation not supported sgpsondewnpnC1.b1: Dewpoint Temperature(dp) asc Pressure, atmospheric, constant value of model level, RUC model output(pres) Eastward Wind Component(u_wind) Dry Bulb Temperature(tdry) lon Mean Wind Speed(wspd) base_time Wind Direction(deg) Northward Wind Component(v_wind) time_offset lat alt wstat Humidity, relative(rh) sgpsondewnpnC1.a1: lon Wind Direction(deg) Dewpoint Temperature(dp) wstat Humidity, relative(rh) Mean Wind Speed(wspd) asc Northward Wind Component(v_wind) alt lat base_time Eastward Wind Component(u_wind) time_offset Dry Bulb Temperature(tdry) Pressure, atmospheric, constant value of model level, RUC model output(pres)

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DQRID : D030419.2

Start Date	Start Time	End Date	End Time
04/15/2003	2332	04/16/2003	0124

Subject:	SGP/SONDE/C1 - Broken Temperature Sensor
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The temperature sensor broke shortly after launch as a result all variables that are affected by temperature are incorrect.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030427.1

Start Date	Start Time	End Date	End Time
04/18/2003	1130	04/18/2003	1310

Subject:	SGP/SONDE/C1 - Broken temperature sensor
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The temperature sensor on this radiosonde broke after launch. All temperature-related variables (dp, tdry, rh) are incorrect.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D030507.3

Start Date	Start Time	End Date	End Time
05/04/2003	1130	05/04/2003	1145
05/04/2003	2330	05/05/2003	0116

Subject:	SGP/SONDE/C1 - Broken temperature sensors
DataStreams:	sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	The temperature sensors broke at launch on both of these soundings. All of the temperature-related data (tdry, rh, dp) are incorrect.
Measurements:	sgpsondewnpnC1.b1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) sgpsondewnpnC1.a1: Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh)

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DQRID : D060928.3

Start Date	Start Time	End Date	End Time
09/28/2006	1728	12/31/9999	2359

Subject:	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry
DataStreams:	sgpsondewnpnC1.b1
Description:	The output precision of the following variables was increased 20060928 alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data.
Measurements:	sgpsondewnpnC1.b1: alt Dry Bulb Temperature(tdry) Dewpoint Temperature(dp) Humidity, relative(rh) Pressure, atmospheric, constant value of model level, RUC model output(pres)

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