DQRID : D060403.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/20/2005193004/12/20062040Suspect
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Subject:
SGP/SIRS/E20 - Instrument noise problem
DataStreams:sgpsirsE20.b1, sgpsirs20sE20.a0, sgpsirsE20.00
Description:
Afer recovery from lightening strike the upwelling longwave SIRS Eppley PIR (UIR) has had 
noise on both dome and case thermistor measurements.  On 4/12/2006 techs replaced 
defective j-panel at base of tower.
Suggestions: 
Noise didn't appear have a bias but StDev went from 12-13W/m2 during noisy period 

back to .75-1.5W/m2 after noise problem was eliminated.  Noise is not removable. Use at 
your discretion.
Measurements:sgpsirs20sE20.a0:
  • inst_up_long_hemisp_tp
  • inst_up_long_dome_resist
  • inst_up_long_case_resist
more
sgpsirsE20.00:
  • Raw data stream - documentation not supported
more
sgpsirsE20.b1:
  • up_long_hemisp_min
  • inst_up_long_dome_temp
  • inst_up_long_case_temp
  • up_long_netir
  • up_long_hemisp_max
  • up_long_hemisp_std
  • up_long_hemisp
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