Data Quality Reports for Session: 118209 User: eebmg Completed: 03/16/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D080829.3SGP/RL/C1 - Degraded sensitivity in WFOV channelssgprlC1.a0, sgprlprofmerge1turnC1.c0
D080909.1SGP/RL/C1 - No liquid water data in RLPROFmergesgprlprofmerge1turnC1.c0


DQRID : D080829.3
Start DateStart TimeEnd DateEnd Time
03/07/2008000003/10/20081500
03/25/2008050004/04/20081600
04/09/2008180004/10/20081500
Subject:
SGP/RL/C1 - Degraded sensitivity in WFOV channels
DataStreams:sgprlC1.a0, sgprlprofmerge1turnC1.c0
Description:
The sensitivity of all the wide field-of-view (WFOV) channels was abnormally low due a 
malfunction of the filter wheel. The filter wheel for the WFOV channels did not rotate into 
position properly and thus partially obscured the return light.
Measurements:sgprlprofmerge1turnC1.c0:
  • Glue coefficient (offset) for low water vapor channel(water_counts_low_glue_coef_offset)
  • Count rate in the low elastic channel(elastic_counts_low)
  • Fit parameters for the low nitrogen channel(parameters_nitrogen_low)
  • Solar background in the low channel water channel(solar_background_water_low)
  • Glue coefficient (slope) for low nitrogen channel(nitrogen_counts_low_glue_coef_slope)
  • Fit parameters for the low elastic channel(parameters_elastic_low)
  • Solar background in the low channel nitrogen channel(solar_background_nitrogen_low)
  • Count rate in the low nitrogen channel(nitrogen_counts_low)
  • Fit parameters for the low water vapor channel(parameters_water_low)
  • Glue coefficient (slope) for low elastic channel(elastic_counts_low_glue_coef_slope)
  • Glue coefficient (slope) for low water vapor channel(water_counts_low_glue_coef_slope)
  • Count rate in the low water vapor channel(water_counts_low)
  • Solar background in the low channel elastic channel(solar_background_elastic_low)
  • Glue coefficient (offset) for low nitrogen channel(nitrogen_counts_low_glue_coef_offset)
  • Glue coefficient (offset) for low elastic channel(elastic_counts_low_glue_coef_offset)
sgprlC1.a0:
  • Summed analog signal in the low nitrogen channel(nitrogen_analog_low)
  • Summed analog signal in the low elastic channel(elastic_analog_low)
  • Summed analog signal in the low water vapor channel(water_analog_low)
  • Count rate in the low elastic channel(elastic_counts_low)
  • Count rate in the low nitrogen channel(nitrogen_counts_low)
  • Count rate in the low water vapor channel(water_counts_low)

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DQRID : D080909.1
Start DateStart TimeEnd DateEnd Time
09/06/2006000003/04/20082359
Subject:
SGP/RL/C1 - No liquid water data in RLPROFmerge
DataStreams:sgprlprofmerge1turnC1.c0
Description:
From 20060906 to 20080304 the liquid water channel (LWC) was disabled due to the removal 
of its photomultiplier tube (PMT).  During this period the signals recorded in the 
sgprlC1.a0 files for the LWC contain invalid data, and so the decision was made not have the 
rlprof_merge vap process the LWC data. As a result, the sgprlprofmerge1turnC1.c0.*.cdf files 
contain NO LWC fields (variables or attributes) during this period.
   
Do not attempt to read any fields (variables or attributes) associated with the liquid 
water channel in the sgprlprofmerge1turnC1.c0.*.cdf files between the dates of 20060906 
through 20080304.
Measurements:sgprlprofmerge1turnC1.c0:
  • Fit parameters for the high liquid channel(parameters_liquid_high)
  • Adjustment to ensure solar background from AD and PC data are identical for the
    high liquid channel(solar_offset_nudge_lw)
  • Glue coefficient (offset) for high liquid channel(liquid_counts_high_glue_coef_offset)
  • Count rate in the high liquid channel(liquid_counts_high)
  • Glue coefficient (slope) for high liquid channel(liquid_counts_high_glue_coef_slope)

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