Data Quality Reports for Session: 123803 User: dmfoper Completed: 10/19/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030117.21SGP/VCEIL/B5 - REPROCESS: CBH reported in feet but labeled meterssgpvceil25kB5.a1, sgpvceil25kB5.b1


DQRID : D030117.21
Start DateStart TimeEnd DateEnd Time
05/27/2001000012/13/20010013
Subject:
SGP/VCEIL/B5 - REPROCESS: CBH reported in feet but labeled meters
DataStreams:sgpvceil25kB5.a1, sgpvceil25kB5.b1
Description:
The cloud base heights reported in the file are in feet despite being labelled meters.  
Reprocessing of this data is highly recommended.

The first affected file is from 2001-05-27 when the ceilometer was exchanged with a 
repaired one.  The last affected file is on 2001-12-13 when the new vceil_ingest version 7.2 
was released which applies the proper units conversion from feet to meters.
Measurements:sgpvceil25kB5.b1:
  • Vertical visibility(vertical_visibility)
  • Lowest cloud base height detected.(first_cbh)
  • Dummy altitude for Zeb(alt)
  • Third cloud base height(third_cbh)
  • Second lowest cloud base height(second_cbh)
  • Altitude of highest signal(alt_highest_signal)
sgpvceil25kB5.a1:
  • Second lowest cloud base height(second_cbh)
  • Vertical visibility(vertical_visibility)
  • Altitude of highest signal(alt_highest_signal)
  • Dummy altitude for Zeb(alt)
  • Third cloud base height(third_cbh)
  • Lowest cloud base height detected.(first_cbh)
  • Lowest cloud base height detected.(lowest_cloud_base_ht)

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