DQRs for Session: 149053 User:shermanCompleted: 03-25-2013

Data Quality Reports for Session: 149053 User: sherman Completed: 03/25/2013

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
D111207.1	GAN/MWR3C/M1 - Intermittent data	ganmwr3cM1.b1
D120124.5	TWP/MWR3C/C3 - Incorrect calibration	twpmwr3cC3.b1
D120124.6	GAN/MWR3C/M1 - 30-Ghz channel unstable	ganmwr3cM1.b1
D120220.1	GAN/MWR3C/M1 - Radiometer instability	ganmwr3cM1.b1
D120326.1	SGP/MWR3C/C1 - Incorrect or missing data	sgpmwr3cC1.b1
D120717.1	SGP/MWR3C/C1 - Spikes in wind speed and direction	sgpmwr3cC1.b1
D120831.1	SGP/MWR3C/C1 - Possible bias in 89 GHz brightness temperatures	sgpmwr3cC1.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(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(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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DQRID : D111207.1

Start Date	Start Time	End Date	End Time
10/14/2011	1200	11/01/2011	1800

Subject:	GAN/MWR3C/M1 - Intermittent data
DataStreams:	ganmwr3cM1.b1
Description:	The data stops every day at 12 pm because of an error in the schedules tasks. The problem was fixed on 11/1/2011.
Measurements:	ganmwr3cM1.b1: wind_speed_max qc_wind_speed_avg hail_accumulation azimuth qc_wind_direction_max qc_wind_direction_min wind_direction_avg qc_rain_intensity wind_direction_max rain_accumulation qc_hail_intensity qc_time Rain Intensity(rain_intensity) qc_rain_accumulation qc_wind_direction_avg qc_surface_pressure qc_infrared_temperature Rain Duration(rain_duration) qc_hail_accumulation 30.0 GHz sky brightness temperature(tbsky30) elevation hail_intensity qc_tbsky23 surface_temperature infrared_temperature lon qc_surface_relative_humidity alt 89.0 GHz sky brightness temperature(tbsky89) time_offset qc_azimuth surface_pressure rain_peak_intensity qc_rain_duration qc_tbsky30 hail_duration Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) qc_tbsky89 qc_elevation time wind_speed_min base_time qc_hail_duration qc_rain_peak_intensity qc_wind_speed_min qc_surface_temperature qc_wind_speed_max wind_speed_avg lat surface_relative_humidity wind_direction_min

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DQRID : D120124.5

Start Date	Start Time	End Date	End Time
12/01/2011	0000	12/10/2011	0000

Subject:	TWP/MWR3C/C3 - Incorrect calibration
DataStreams:	twpmwr3cC3.b1
Description:	When the radiometer was relocated to the TWP site the 89-GHz detector non-linearity coefficient got somehow erased from the radiometer memory. The radiometer was therefore unable to calibrate properly.
Measurements:	twpmwr3cC3.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) 89.0 GHz sky brightness temperature(tbsky89) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) Liquid water path best-estimate value, hourly mean(lwp) 30.0 GHz sky brightness temperature(tbsky30)

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DQRID : D120124.6

Start Date	Start Time	End Date	End Time
12/01/2011	0000	12/08/2011	0000

Subject:	GAN/MWR3C/M1 - 30-Ghz channel unstable
DataStreams:	ganmwr3cM1.b1
Description:	The 30-GHz channel was unstable between Dec 1 and Dec 5. Calibration was restored on Dec 9.
Measurements:	ganmwr3cM1.b1: Liquid water path best-estimate value, hourly mean(lwp) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) 30.0 GHz sky brightness temperature(tbsky30)

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DQRID : D120220.1

Start Date	Start Time	End Date	End Time
01/04/2012	0000	01/08/2012	2359
01/12/2012	0000	01/20/2012	0000
01/31/2012	0000	02/01/2012	2359
02/07/2012	2100	02/08/2012	0500

Subject:	GAN/MWR3C/M1 - Radiometer instability
DataStreams:	ganmwr3cM1.b1
Description:	The radiometer showed intermittent instability in the 30 GHz and 89 GHz channel. There was a calibration shift between Jan 4 and Jan 8 and a calibration instability between Jan 12 and Jan 20. It may be possible to recalibrate the data when a recalibration algorithm is developed.
Measurements:	ganmwr3cM1.b1: Liquid water path best-estimate value, hourly mean(lwp) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) 30.0 GHz sky brightness temperature(tbsky30) 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D120326.1

Start Date	Start Time	End Date	End Time
01/09/2012	0000	02/22/2012	0000

Subject:	SGP/MWR3C/C1 - Incorrect or missing data
DataStreams:	sgpmwr3cC1.b1
Description:	The 89-GHz receiver started to reset itself continuously. The problem was initially identified with a wrong cable connection, but it was later found that one pin in the power connector of the receiver was broken. The pin was pulled out to temporarily start the radiometer. After the receiver was replaced it was discovered that there was an additional problem with water infiltration in the mini j-box. The mini-jbox was removed and sent for repair.
Measurements:	sgpmwr3cC1.b1: lat hail_duration wind_speed_avg base_time Rain Intensity(rain_intensity) Liquid water path best-estimate value, hourly mean(lwp) pwverr lon 89.0 GHz sky brightness temperature(tbsky89) wind_direction_min elevation wind_speed_max Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) azimuth rain_accumulation surface_relative_humidity surface_temperature time_offset Rain Duration(rain_duration) hail_accumulation surface_pressure infrared_temperature Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) rain_peak_intensity hail_intensity time wind_speed_min wind_direction_max wind_direction_avg 30.0 GHz sky brightness temperature(tbsky30) alt lwperr

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DQRID : D120717.1

Start Date	Start Time	End Date	End Time
05/03/2012	1509	07/09/2012	1925

Subject:	SGP/MWR3C/C1 - Spikes in wind speed and direction
DataStreams:	sgpmwr3cC1.b1
Description:	The surface wind speed and wind direction wre occasionally spiking to large values during daylight hours. The spikes did not match well with co-located MET values. On 7/9 the wind sensor was replaced with a spare.
Measurements:	sgpmwr3cC1.b1: wind_direction_min wind_speed_min wind_speed_avg wind_direction_max wind_direction_avg wind_speed_max

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DQRID : D120831.1

Start Date	Start Time	End Date	End Time
10/01/2011	0000	07/22/2012	0000

Subject:	SGP/MWR3C/C1 - Possible bias in 89 GHz brightness temperatures
DataStreams:	sgpmwr3cC1.b1
Description:	The 89 GHz brightness temperatures appear slightly warm when compared to model computations. The bias appear to be about 1.5 K. This could affect the liquid water retrievals that may display a slight positive bias.
Measurements:	sgpmwr3cC1.b1: 89.0 GHz sky brightness temperature(tbsky89) Liquid water path best-estimate value, hourly mean(lwp) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv)

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END OF DATA