Data Quality Reports for Session: 123889 User: sbenson Completed: 10/22/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040424.3TWP/MPL/C1 - SunShade timing problemtwpmplC1.00, twpmplC1.a1, twpmplcmask1clothC1.c1, twpmplsmask1clothC1.c1
D040424.4TWP/MPL/C1 - SP laser diode supply failedtwpmplC1.00, twpmplC1.a1, twpmplcmask1clothC1.c1, twpmplsmask1clothC1.c1


DQRID : D040424.3
Start DateStart TimeEnd DateEnd Time
12/14/2003000002/17/20042359
Subject:
TWP/MPL/C1 - SunShade timing problem
DataStreams:twpmplC1.00, twpmplC1.a1, twpmplcmask1clothC1.c1, twpmplsmask1clothC1.c1
Description:
For an unknown reason, the sun shade was dropping for less then 10 minutes during the 
night at about 19:00 UTC between Dec 14, 2003 and Feb 17, 2004.  Data taken during that ten 
minute interval is not looking at the sky and should be considered as though it were 
missing.

This is a fairly small effect.  Data users can simply average across the interval or block 
the records as "missing".
Measurements:twpmplC1.a1:
  • Laser Temperature(laser_temp)
  • Aerosol backscatter coefficient at 355 nm(backscatter)
  • Filter Temperature(filter_temp)
  • Background Signal(background_signal)
  • Detector Temperature(detector_temp)
  • Dummy altitude for Zeb(alt)
  • GPS raw data filename(filename)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)
  • Voltage level which operates the A_D card and the detector(voltage_5)
  • Voltage level which operates the thermistor(voltage_10)
  • Preliminary cloud base height above ground level(cbh)
  • Number of laser shots recorded(shots_summed)
  • Instrument Temperature(instrument_temp)
  • Repetition Rate, or Trigger Frequency of the laser(pulse_rep)
  • base time(base_time)
  • Laser output energy per pulse(energy_monitor)
  • Voltage level which operates the energy monitor(voltage_15)
  • lat(lat)
twpmplC1.00:
  • null(Raw data stream - documentation not supported)
twpmplsmask1clothC1.c1:
  • Height of Center of Each Range Bin(Heights)
  • MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
twpmplcmask1clothC1.c1:
  • base time(base_time)
  • Time offset of tweaks from base_time(time_offset)
  • Height of Center of Each Range Bin(Heights)
  • MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)

Back To Table of Contents

DQRID : D040424.4
Start DateStart TimeEnd DateEnd Time
03/02/2004000004/18/20042359
Subject:
TWP/MPL/C1 - SP laser diode supply failed
DataStreams:twpmplC1.00, twpmplC1.a1, twpmplcmask1clothC1.c1, twpmplsmask1clothC1.c1
Description:
The Spectra Physics laser diode supply failed on March 2, 2004.  A replacement was 
installed April 18. 

Any data between these dates is worthless.
Measurements:twpmplC1.a1:
  • Laser Temperature(laser_temp)
  • Aerosol backscatter coefficient at 355 nm(backscatter)
  • Filter Temperature(filter_temp)
  • Background Signal(background_signal)
  • Detector Temperature(detector_temp)
  • Dummy altitude for Zeb(alt)
  • GPS raw data filename(filename)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)
  • Voltage level which operates the A_D card and the detector(voltage_5)
  • Voltage level which operates the thermistor(voltage_10)
  • Preliminary cloud base height above ground level(cbh)
  • Number of laser shots recorded(shots_summed)
  • Instrument Temperature(instrument_temp)
  • Repetition Rate, or Trigger Frequency of the laser(pulse_rep)
  • base time(base_time)
  • Laser output energy per pulse(energy_monitor)
  • Voltage level which operates the energy monitor(voltage_15)
  • lat(lat)
twpmplC1.00:
  • null(Raw data stream - documentation not supported)
twpmplsmask1clothC1.c1:
  • Height of Center of Each Range Bin(Heights)
  • MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
twpmplcmask1clothC1.c1:
  • base time(base_time)
  • Time offset of tweaks from base_time(time_offset)
  • Height of Center of Each Range Bin(Heights)
  • MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)

Back To Table of Contents


END OF DATA