DQRID : D040124.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/19/2004225201/24/20040016Incorrect
more
Subject:
NSA/MPL/C1 - Laser Q-Switch Problem
DataStreams:nsamplC1.a1, nsamplC1.00, nsamplpsC1.a0, nsamplsmask1clothC1.c1, nsamplcmask1clothC1.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.
Suggestions: 
Do not use this data.  It is totally useless, constituting electronic noise only.
Measurements:nsamplcmask1clothC1.c1:
  • CloudMaskMplCloth
  • Heights
  • base_time
  • time_offset
more
nsamplpsC1.a0:
  • lon
  • base_time
  • range_bin_time
  • preliminary_cbh
  • alt
  • time
  • range_bin_width
  • height
  • lat
  • shots_summed
  • laser_temp
  • detector_counts
  • background_signal
  • filter_temp
  • instrument_temp
  • range
  • pulse_rep
  • range_offset
  • voltage_05
  • range_bins
  • voltage_10
  • max_altitude
  • time_offset
  • energy_monitor
  • detector_temp
  • voltage_15
more
nsamplsmask1clothC1.c1:
  • base_time
  • time_offset
  • Heights
  • SigniMaskMplCloth
more
nsamplC1.a1:
  • pulse_rep
  • laser_sync_offset
  • instrument_temp
  • energy_monitor
  • backscatter
  • time
  • lon
  • range_bin_width
  • time_offset
  • range_bins
  • preliminary_cbh
  • scalar_sync_offset
  • property
  • transceiver_altitude_angle
  • background_signal
  • height
  • filter_temp
  • base_time
  • range
  • voltage_10
  • shots_sum
  • total_counts
  • voltage_15
  • transceiver_azimuth_angle
  • max_altitude
  • range_offset
  • range_bin_time
  • deadtime_correction
  • lat
  • voltage_05
  • shots_summed
  • laser_scalar_sync_offset
  • laser_temp
  • trigger_freq
  • detector_temp
  • alt
more
nsamplC1.00:
  • Raw data stream - documentation not supported
more

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