DQRs for Session: 131909 User:troyanCompleted: 11-30-2010

Data Quality Reports for Session: 131909 User: troyan Completed: 11/30/2010

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
D080428.4	TWP/SMET/C2 - Reprocess: ORG Data has very small rainrate values	twpsmet60sC2.b1
D100303.3	TWP/SMET/C2 - Barometer failure	twpsmet60sC2.b1

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: 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 : D080428.4

Start Date	Start Time	End Date	End Time
07/01/2004	0000	06/30/2010	2359

Subject:	TWP/SMET/C2 - Reprocess: ORG Data has very small rainrate values
DataStreams:	twpsmet60sC2.b1
Description:	The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We will reprocess the data to remove these small values.
Measurements:	twpsmet60sC2.b1: Precipitation mean(precip_mean) Precipitation minimum(precip_min) Precipitation maximum(precip_max) precip_sd

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DQRID : D100303.3

Start Date	Start Time	End Date	End Time
02/04/2010	0600	02/23/2010	2315

Subject:	TWP/SMET/C2 - Barometer failure
DataStreams:	twpsmet60sC2.b1
Description:	The atmos_pressure values were spiking high (up to 110 kPa) from 06:00 UTC on 02/04 until the data went missing at 10:44 UTC on 02/06 when the barometer failed completely. Barometer replaced 2/23.
Measurements:	twpsmet60sC2.b1: Atmospheric pressure(atmos_pressure)

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