DQRs for Session: 131527 User:wljCompleted: 11-11-2010

Data Quality Reports for Session: 131527 User: wlj Completed: 11/11/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D070117.1	NSA/GVR/C1 - Missing data	nsagvrC1.a0, nsagvrC1.b1
D070515.2	NSA/GVR/C1 - Instrument calibration	nsagvrC1.a0, nsagvrC1.b1
D070710.3	NSA/GVR/C1 - Temperature sensor wire broken	nsagvrC1.a0, nsagvrC1.b1
D070713.1	NSA/GVR/C1 - Incorrect auxiliary measurements	nsagvrC1.a0, nsagvrC1.b1
D071214.1	NSA/GVR/C1 - Incorrect ambient temperature readings	nsagvrC1.a0, nsagvrC1.b1
D100809.2	NSA/GVR/C1 - Saturated brightness temperature	nsagvrC1.a0, nsagvrC1.b1, nsagvrrawC1.00
D100909.2	NSA/GVR/C1 - Saturated brightness temperatures	nsagvrC1.a0, nsagvrC1.b1

DQRID : D070117.1

Start Date	Start Time	End Date	End Time
01/11/2007	1500	01/15/2007	1600
04/13/2007	2122	04/18/2007	1325
04/30/2007	2020	05/02/2007	1256
06/09/2008	0500	06/20/2008	1852
11/10/2008	1903	11/14/2008	1616
08/03/2009	1700	10/26/2009	1800
05/08/2010	2200	05/11/2010	1800

Subject:	NSA/GVR/C1 - Missing data
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	nsagvrC1.b1: 183.3 +/- 14 GHz sky brightness temperature(tbsky14) temp_noise_diode temp_ext tbsky3u time time_offset lat lon temp_hot2 temp_hot1 base_time tbsky14u temp_antenna_feed_horn tbsky1u temp_warm alt 183.3 +/- 1 GHz sky brightness temperature(tbsky1) temp_thermoelectric_cooling_plate 183.3 +/- 3 GHz sky brightness temperature(tbsky3) 183.3 +/- 7 GHz sky brightness temperature(tbsky7) tbsky7u temp_component_plate nsagvrC1.a0: warm1 warm3 sky1 sky3 warm7 time_offset sky7 ml3 ml7 pos hot14 temp_component_plate temp_warm lon ns14 warm14 base_time sky14 alt time hot7 temp_ext hot1 hot3 ml14 temp_thermoelectric_cooling_plate temp_hot1 ns7 ns1 temp_hot2 ns3 lat temp_antenna_feed_horn type ml1 temp_noise_diode

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DQRID : D070515.2

Start Date	Start Time	End Date	End Time
05/11/2007	1741	05/17/2007	0000

Subject:	NSA/GVR/C1 - Instrument calibration
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	During the period of time specified, the instrument was undergoing calibration. The antenna pointed constantly to a hot load placed on the instrument window. All brightness temperatures during this time have temperatures > 300 K.
Measurements:	nsagvrC1.b1: 183.3 +/- 14 GHz sky brightness temperature(tbsky14) temp_noise_diode temp_ext tbsky3u time time_offset lat lon temp_hot2 temp_hot1 base_time tbsky14u temp_antenna_feed_horn tbsky1u temp_warm alt 183.3 +/- 1 GHz sky brightness temperature(tbsky1) temp_thermoelectric_cooling_plate 183.3 +/- 3 GHz sky brightness temperature(tbsky3) 183.3 +/- 7 GHz sky brightness temperature(tbsky7) tbsky7u temp_component_plate nsagvrC1.a0: warm1 warm3 sky1 sky3 warm7 time_offset sky7 ml3 ml7 pos hot14 temp_component_plate temp_warm lon ns14 warm14 base_time sky14 alt time hot7 temp_ext hot1 hot3 ml14 temp_thermoelectric_cooling_plate temp_hot1 ns7 ns1 temp_hot2 ns3 lat temp_antenna_feed_horn type ml1 temp_noise_diode

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DQRID : D070710.3

Start Date	Start Time	End Date	End Time
06/30/2007	1900	07/13/2007	2200

Subject:	NSA/GVR/C1 - Temperature sensor wire broken
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	The temp_ext temperatures were occasionally spiking to very large values. Comparisons with the co-located 2m METTWR suggest the GVR exterior temperatures were not reporting correctly. Site ops found the temperature sensor had a broken wire and repaired it 7/13.
Measurements:	nsagvrC1.b1: temp_ext nsagvrC1.a0: temp_ext

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DQRID : D070713.1

Start Date	Start Time	End Date	End Time
06/16/2007	1700	06/19/2007	1700

Subject:	NSA/GVR/C1 - Incorrect auxiliary measurements
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	Between 6/16 and 6/19 there was a software problem and the auxiliary measurements all were reading constant values. The brightness temperature measurements do not appear to be affected. One of the incorrect measurements that may affect the use of the data is the surface temperature. This measurement should be disregarded. Measurements from a different instrument (such as the MWR) can be used to replace the GVR readings.
Measurements:	nsagvrC1.b1: temp_thermoelectric_cooling_plate temp_hot2 temp_component_plate temp_hot1 temp_noise_diode temp_antenna_feed_horn temp_warm temp_ext nsagvrC1.a0: warm1 temp_hot1 temp_warm warm3 temp_hot2 warm7 hot7 temp_ext hot1 temp_antenna_feed_horn hot3 temp_noise_diode hot14 temp_component_plate temp_thermoelectric_cooling_plate warm14

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DQRID : D071214.1

Start Date	Start Time	End Date	End Time
09/03/2007	2000	05/22/2008	2200

Subject:	NSA/GVR/C1 - Incorrect ambient temperature readings
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	The ambient temperature readings are incorrect. The temperature sensor was replaced on 5/13, however the temperature readings were incorrect until 5/22 due to problems with corrosion in the cables
Measurements:	nsagvrC1.b1: temp_ext nsagvrC1.a0: temp_ext

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DQRID : D100809.2

Start Date	Start Time	End Date	End Time
07/16/2010	1200	07/22/2010	2000

Subject:	NSA/GVR/C1 - Saturated brightness temperature
DataStreams:	nsagvrC1.a0, nsagvrC1.b1, nsagvrrawC1.00
Description:	Beginning 7/16 all sky temperature data become nearly equal and abnormally constant. The sky temperature data returned to normal on 7/22 ~20:00 UTC. The saturated brightness temperatures were probably due to water or dew deposit on the window.
Measurements:	nsagvrC1.b1: 183.3 +/- 1 GHz sky brightness temperature(tbsky1) 183.3 +/- 14 GHz sky brightness temperature(tbsky14) 183.3 +/- 3 GHz sky brightness temperature(tbsky3) 183.3 +/- 7 GHz sky brightness temperature(tbsky7) tbsky14u tbsky7u tbsky1u tbsky3u nsagvrrawC1.00: C-Band Polarimetric Radar Data for Darwin, from BOM (RAW)(raw) nsagvrC1.a0: sky14 sky1 sky3 sky7

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DQRID : D100909.2

Start Date	Start Time	End Date	End Time
08/26/2010	1200	08/30/2010	1500

Subject:	NSA/GVR/C1 - Saturated brightness temperatures
DataStreams:	nsagvrC1.a0, nsagvrC1.b1
Description:	Brightness temperatures are saturated probably because of water on the radome. Water vapor retrievals are affected as well.
Measurements:	nsagvrC1.b1: 183.3 +/- 1 GHz sky brightness temperature(tbsky1) 183.3 +/- 14 GHz sky brightness temperature(tbsky14) 183.3 +/- 3 GHz sky brightness temperature(tbsky3) tbsky1u 183.3 +/- 7 GHz sky brightness temperature(tbsky7) tbsky14u tbsky3u tbsky7u nsagvrC1.a0: sky14 sky1 sky3 sky7

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