DQRs for Session: 128806 User:theo1steenCompleted: 07-07-2010

Data Quality Reports for Session: 128806 User: theo1steen Completed: 07/07/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D070412.3	TWP/MWR/C1/C2 - Sun in the field of view	twpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1
D080925.1	TWP/SONDE/C2 - Bad RH values throughout sounding	twpsondewnpnC2.b1
D081114.1	TWP/SONDE/C2 - Defective Temperature Sensor	twpsondewnpnC2.b1
D081216.1	TWP/MWR/C2 - Incorrect ambient temperature during rain	twpmwrlosC2.b1, twpmwrtipC2.a1

DQRID : D070412.3

Start Date	Start Time	End Date	End Time
03/07/2007	0000	04/02/2007	2359
03/01/2008	0000	04/02/2008	2359
09/10/2008	0000	10/12/2008	0000
03/01/2009	0000	04/02/2009	2359
09/11/2009	0000	10/10/2009	2359
03/01/2010	0000	04/02/2010	2359

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: 23.8 GHz sky signal(tipsky23) 31.4 GHz sky signal(tipsky31) twpmwrtipC1.a1: Total water vapor along zenith path using tip-derived brightness temperatures(vaptip) Total liquid water along zenith path using tip-derived brightness temperatures(liqtip) 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23) 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31) twpmwrlosC1.b1: Averaged total liquid water along LOS path(liq) 23.8 GHz sky signal(sky23) Sky brightness temperature at 31.4 GHz(tbsky31) 31.4 GHz sky signal(sky31) MWR column precipitable water vapor(vap) Sky brightness temperature at 23.8 GHz(tbsky23) twpmwrlosC2.b1: Sky brightness temperature at 31.4 GHz(tbsky31) 31.4 GHz sky signal(sky31) 23.8 GHz sky signal(sky23) Averaged total liquid water along LOS path(liq) MWR column precipitable water vapor(vap) Sky brightness temperature at 23.8 GHz(tbsky23)

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DQRID : D080925.1

Start Date	Start Time	End Date	End Time
09/08/2008	1145	09/08/2008	1145

Subject:	TWP/SONDE/C2 - Bad RH values throughout sounding
DataStreams:	twpsondewnpnC2.b1
Description:	RH values fluctuate largely in a stepping function throughout the sounding. Suspect bad RH sensors.
Measurements:	twpsondewnpnC2.b1: Relative humidity inside the instrument enclosure(rh)

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DQRID : D081114.1

Start Date	Start Time	End Date	End Time
11/04/2008	1145	11/04/2008	1145

Subject:	TWP/SONDE/C2 - Defective Temperature Sensor
DataStreams:	twpsondewnpnC2.b1
Description:	Temperature sensor shows a +30C offset for duration of flight.
Measurements:	twpsondewnpnC2.b1: Dry bulb temperature(tdry)

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DQRID : D081216.1

Start Date	Start Time	End Date	End Time
10/09/2008	0100	01/09/2009	0300

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: Ambient temperature(tkair) twpmwrlosC2.b1: Ambient temperature(tkair)

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