Data Quality Reports for Session: 143805 User: sbenson Completed: 07/19/2012


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040124.1NSA/MPL/C1 - Laser Q-Switch ProblemnsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplpsC1.a0, nsamplsmask1clothC1.c1


DQRID : D040124.1
Start DateStart TimeEnd DateEnd Time
01/19/2004225201/24/20040016
Subject:
NSA/MPL/C1 - Laser Q-Switch Problem
DataStreams:nsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplpsC1.a0, nsamplsmask1clothC1.c1
Description:
At about 22:52 UTC on 2004/01/19, the NSA MPL appears to have suffered a temporary failure 
of the laser Q-Switch.  This results in a complete loss of lidar data immediately 
thereafter.  The problem was resolved (at least for the time being) by disconnecting and 
reconnecting the Q-Switch cable on 2004/01/24 at about 00:16 UTC.  Data after this time appears 
good.
Measurements:nsamplC1.a1:
  • range_bin_time
  • range
  • max_altitude
  • filter_temp
  • property
  • laser_scalar_sync_offset
  • scalar_sync_offset
  • range_bin_width
  • lon
  • energy_monitor
  • Backscatter(backscatter)
  • trigger_freq
  • transceiver_azimuth_angle
  • laser_temp
  • time_offset
  • detector_temp
  • laser_sync_offset
  • deadtime_correction
  • transceiver_altitude_angle
  • base_time
  • instrument_temp
  • time
  • Preliminary cloud base height above ground level(preliminary_cbh)
  • alt
  • voltage_10
  • voltage_15
  • range_bins
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • range_offset
  • shots_sum
  • shots_summed
  • pulse_rep
  • total_counts
  • lat
  • background_signal
  • voltage_05

nsamplsmask1clothC1.c1:
  • Heights
  • time_offset
  • base_time
  • MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth)

nsamplpsC1.a0:
  • range_bin_time
  • background_signal
  • alt
  • voltage_15
  • instrument_temp
  • Preliminary cloud base height above ground level(preliminary_cbh)
  • max_altitude
  • range_bins
  • detector_counts
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • time
  • voltage_05
  • range
  • voltage_10
  • lon
  • pulse_rep
  • detector_temp
  • filter_temp
  • laser_temp
  • base_time
  • range_bin_width
  • shots_summed
  • time_offset
  • energy_monitor
  • lat
  • range_offset

nsamplcmask1clothC1.c1:
  • Heights
  • MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)
  • time_offset
  • base_time

nsamplC1.00:
  • Raw data stream - documentation not supported


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