DQRID : D050721.2
Start DateStart TimeEnd DateEnd Time
01/10/2003172505/10/20041815
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Subject:
SGP/VCEIL/B4 - Detection optics degrading
DataStreams:sgpvceil25kB4.b1
Description:
Backscatter plots exhibited horizontal striping due to electronic ringing of either the 
detector or the associated amplification electronics.  The instrument was changed out on 
May 10.

The ceilometer continued to correctly detected clouds during this period, though users 
should be aware of the degraded performance.
Suggestions: 
Measurements:sgpvceil25kB4.b1:
  • Aerosol volume backscattering coefficient at 355 nm(backscatter)
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