Data Quality Reports for Session: 140265 User: ql_data Completed: 02/03/2012


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110617.2SGP/MPL/C1 - Water intrusionsgpmplpolfsC1.b1


DQRID : D110617.2
Start DateStart TimeEnd DateEnd Time
02/01/2011000002/03/20111759
Subject:
SGP/MPL/C1 - Water intrusion
DataStreams:sgpmplpolfsC1.b1
Description:
Instrument temperatures were incorrect.  On 02/01 and 02/03 they essentially flat lined at 
0 C, while on 02/02 the temps were lower than normal (although given the external temp 
they may be accurate), with several data spikes throughout the day.

Background signal values were excessively low throughout the entire period. Co- and 
cross-pol plotted values appear to have had a 3-5 km artificial elevation, resulting in plotted 
cloud bases appearing much higher than they actually were.

System was not operating correctly due to water intrusion.
Measurements:sgpmplpolfsC1.b1:
  • num_channels
  • background_signal_co_pol
  • num_bins
  • range
  • dead_time_corrected
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • pulse_rep
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • background_signal_std_cross_pol
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • overlap_correction
  • detector_temp
  • range_bin_width
  • max_altitude
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • deadtime_correction_counts
  • deadtime_correction
  • background_signal_std_co_pol
  • range_bin_time
  • range_bins
  • range_offset
  • energy_monitor
  • Preliminary cloud base height above ground level(preliminary_cbh)
  • scope_temp
  • HLN(VN)


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