DQRs for Session: 141695 User:daniel1perCompleted: 04-04-2012

Data Quality Reports for Session: 141695 User: daniel1per Completed: 04/04/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D110307.1	SBS/MWR3C/M1 - Radiometer unstable	sbsmwr3cM1.b1
D110308.1	SBS/MWR3C/M1 - Missing data	sbsmwr3cM1.b1
D110318.3	SBS/MWR3C/M1 - Incorrect elevation angles	sbsmwr3cM1.b1
D110421.1	SBS/MWR3C/M1 - Period of instability	sbsmwr3cM1.b1
D110421.2	SBS/MWR3C/M1 - Intermittent thermal instability	sbsmwr3cM1.b1
D110421.3	SBS/MWR3C/M1 - W-band receiver unstable	sbsmwr3cM1.b1

DQRID : D110307.1

Start Date	Start Time	End Date	End Time
01/11/2011	0000	04/22/2011	2359

Subject:	SBS/MWR3C/M1 - Radiometer unstable
DataStreams:	sbsmwr3cM1.b1
Description:	The noise diode was unstable and the instrument was unable to calibrate. In addition the instrument did not have a rain mitigation system during the SBS deployment, therefore snow and dew stayed on the lens affecting the measurements.
Measurements:	sbsmwr3cM1.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) 30.0 GHz sky brightness temperature(tbsky30) 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D110308.1

Start Date	Start Time	End Date	End Time
01/21/2011	1900	01/25/2011	0000

Subject:	SBS/MWR3C/M1 - Missing data
DataStreams:	sbsmwr3cM1.b1
Description:	Data are missing and unrecoverable.
Measurements:	sbsmwr3cM1.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) wind_speed_min qc_rain_peak_intensity qc_rain_accumulation qc_azimuth rain_duration qc_surface_pressure base_time qc_wind_direction_min infrared_temperature alt qc_wind_direction_max wind_speed_avg qc_rain_intensity surface_pressure qc_surface_temperature lon wind_direction_min qc_infrared_temperature wind_speed_max qc_hail_accumulation 30.0 GHz sky brightness temperature(tbsky30) hail_intensity elevation qc_surface_relative_humidity qc_wind_speed_max hail_accumulation rain_peak_intensity qc_wind_direction_avg qc_wind_speed_min rain_intensity qc_time qc_elevation qc_tbsky23 qc_hail_duration rain_accumulation surface_relative_humidity qc_wind_speed_avg qc_tbsky30 time_offset qc_rain_duration lat hail_duration time wind_direction_avg 89.0 GHz sky brightness temperature(tbsky89) surface_temperature qc_tbsky89 wind_direction_max azimuth qc_hail_intensity

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DQRID : D110318.3

Start Date	Start Time	End Date	End Time
02/02/2011	0000	02/04/2011	2359

Subject:	SBS/MWR3C/M1 - Incorrect elevation angles
DataStreams:	sbsmwr3cM1.b1
Description:	The radiometer positioner froze because of very cold temperatures and was unable to complete azimuth and elevation scanning. The nominal azimuth and elevation angles recorded in the file are incorrect.
Measurements:	sbsmwr3cM1.b1: azimuth Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) 30.0 GHz sky brightness temperature(tbsky30) elevation 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D110421.1

Start Date	Start Time	End Date	End Time
01/11/2011	0000	01/24/2011	2359

Subject:	SBS/MWR3C/M1 - Period of instability
DataStreams:	sbsmwr3cM1.b1
Description:	The DPI positioner that moves the two receivers was malfunctioning causing several software crashes and a general instability in the instrument.
Measurements:	sbsmwr3cM1.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) 30.0 GHz sky brightness temperature(tbsky30) 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D110421.2

Start Date	Start Time	End Date	End Time
01/11/2011	0000	01/27/2011	1920

Subject:	SBS/MWR3C/M1 - Intermittent thermal instability
DataStreams:	sbsmwr3cM1.b1
Description:	The radiometers reset the thermal control every time the software was started at 00:00 UTC. It took about an hour to reestablish the thermal control of the instrument after each reset. On Jan 27 a workaround was introduced to avoid this behavior. The software will be modified at the next release.
Measurements:	sbsmwr3cM1.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) 30.0 GHz sky brightness temperature(tbsky30) 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D110421.3

Start Date	Start Time	End Date	End Time
01/27/2011	0000	02/22/2011	2100

Subject:	SBS/MWR3C/M1 - W-band receiver unstable
DataStreams:	sbsmwr3cM1.b1
Description:	Starting on Jan 27 the W-band receiver experienced extended periods of thermal instability. The origin of the problem was identified as faulty power connectors to the receiver. On Feb 22 the the brackets and mini J-Box were replaced.
Measurements:	sbsmwr3cM1.b1: 89.0 GHz sky brightness temperature(tbsky89)

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