Data Quality Reports for Session: 152706 User: hs32 Completed: 08/31/2013

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050614.1SGP/VCEIL/C1 - poor signalsgpvceil25kC1.b1
D100215.1SGP/VCEIL/C1/B4/B5/B6 - Reprocess: Incorrect serial_number and sum_backscatter fieldssgpvceil25kB4.b1, sgpvceil25kB5.b1, sgpvceil25kB6.b1, sgpvceil25kC1.b1


DQRID : D050614.1
Start DateStart TimeEnd DateEnd Time
05/05/2005184204/19/20061713
Subject:
SGP/VCEIL/C1 - poor signal
DataStreams:sgpvceil25kC1.b1
Description:
When parameters were changed (set noise_h2_compensation to "ON" and units to "METERS") to 
correct a low amplitude problem, the backscatter plots began displaying horizontal 
stripes indicating detector "ringing". However, the cloud base heights are not affected. The 
problem was corrected when the instrument was replaced.
Measurements:sgpvceil25kC1.b1:
  • detection_status
  • Normalized corrected relative backscatter(backscatter)

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DQRID : D100215.1
Start DateStart TimeEnd DateEnd Time
04/01/2001000010/31/20092359
Subject:
SGP/VCEIL/C1/B4/B5/B6 - Reprocess: Incorrect serial_number and sum_backscatter fields
DataStreams:sgpvceil25kB4.b1, sgpvceil25kB5.b1, sgpvceil25kB6.b1, sgpvceil25kC1.b1
Description:
Attribute serial_number: In most cases, this field is not representative of the actual 
serial number of the instrument because the value did not change when an instrument changed 
locations or was replaced with a spare.

Variable sum_backscatter: An out-of-range condition for the "sum of detected and 
normalized backscatter" was reported as 0 instead of missing (-9999). The valid range is 0 - 
0.0999 /srad.

This DQR also applies to a1 level data collected prior to b1 level.
Measurements:sgpvceil25kC1.b1:
  • sum_backscatter
sgpvceil25kB4.b1:
  • sum_backscatter
sgpvceil25kB6.b1:
  • sum_backscatter
sgpvceil25kB5.b1:
  • sum_backscatter

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