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


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110307.1SBS/MWR3C/M1 - Radiometer unstablesbsmwr3cM1.b1
D110308.1SBS/MWR3C/M1 - Missing datasbsmwr3cM1.b1
D110318.3SBS/MWR3C/M1 - Incorrect elevation anglessbsmwr3cM1.b1
D110421.1SBS/MWR3C/M1 - Period of instabilitysbsmwr3cM1.b1
D110421.2SBS/MWR3C/M1 - Intermittent thermal instabilitysbsmwr3cM1.b1
D110421.3SBS/MWR3C/M1 - W-band receiver unstablesbsmwr3cM1.b1


DQRID : D110307.1
Start DateStart TimeEnd DateEnd Time
01/11/2011000004/22/20112359
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)


Back To Table of Contents

DQRID : D110308.1
Start DateStart TimeEnd DateEnd Time
01/21/2011190001/25/20110000
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


Back To Table of Contents

DQRID : D110318.3
Start DateStart TimeEnd DateEnd Time
02/02/2011000002/04/20112359
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)


Back To Table of Contents

DQRID : D110421.1
Start DateStart TimeEnd DateEnd Time
01/11/2011000001/24/20112359
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)


Back To Table of Contents

DQRID : D110421.2
Start DateStart TimeEnd DateEnd Time
01/11/2011000001/27/20111920
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)


Back To Table of Contents

DQRID : D110421.3
Start DateStart TimeEnd DateEnd Time
01/27/2011000002/22/20112100
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)


Back To Table of Contents



END OF DATA