DQRs for Session: 138290 User:achaseCompleted: 10-25-2011

Data Quality Reports for Session: 138290 User: achase Completed: 10/25/2011

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
D081013.2	TWP/MWR/C1 - Short periods of wrong ambient temperature	twpmwrlosC1.b1, twpmwrtipC1.a1
D090114.4	TWP/MWR/C1 - Ambient temperature data missing	twpmwrlosC1.b1, twpmwrtipC1.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
03/01/2011	0000	04/02/2011	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: tipsky23 tipsky31 twpmwrtipC1.a1: vaptip liqtip tbskytip23 tbskytip31 twpmwrlosC1.b1: Total liquid water along LOS path(liq) sky23 31.4 GHz sky brightness temperature(tbsky31) sky31 Total water vapor along LOS path(vap) Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) twpmwrlosC2.b1: 31.4 GHz sky brightness temperature(tbsky31) sky31 sky23 Total liquid water along LOS path(liq) Total water vapor along LOS path(vap) Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)

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DQRID : D081013.2

Start Date	Start Time	End Date	End Time
09/01/2008	0000	09/30/2008	2359

Subject:	TWP/MWR/C1 - Short periods of wrong ambient temperature
DataStreams:	twpmwrlosC1.b1, twpmwrtipC1.a1
Description:	During this month there are a few intermittent instances of bad ambient temperature readings. I will summarize here these short time ranges: 20080909 between 02:00 and 03:00 UTC 20080909 between 09:00 and 14:00 UTC Additionally the ambient temperature has short but frequent data gaps. The data gaps are very short (less than one hour). Users could interpolate missing data or use alternative sensors such as the surface meteorological data available for the site.
Measurements:	twpmwrtipC1.a1: tkair twpmwrlosC1.b1: tkair

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DQRID : D090114.4

Start Date	Start Time	End Date	End Time
12/03/2008	1900	02/06/2009	0530

Subject:	TWP/MWR/C1 - Ambient temperature data missing
DataStreams:	twpmwrlosC1.b1, twpmwrtipC1.a1
Description:	The ambient temperature readings (tkair) suddenly failed. The sensor was replaced on Feb 6.
Measurements:	twpmwrtipC1.a1: tkair twpmwrlosC1.b1: tkair

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