DQRID : D061208.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/31/2006060012/12/20062105Suspect
more
Subject:
SGP/SIRS/E7 - Instrument noise
DataStreams:sgpsirsE7.b1, sgpsirs20sE7.a0
Description:
Beginning around 10/31, the E7 UIR experienced an increasingly noisy signal.  The 
thermopile signal was noisy, but case and dome thermistors are well behaved.  Maintenance 
reseated the UIR cable connections on 12/12/2006 which effectively eliminated the UIR noise.

The thermopile data from the upwelling pyrgeometer is noisy with resulting irradiance 
variations of up to 5 W/m2, but doesn't appear to have a bias.
Suggestions: 
Use data during this time range at users discretion.
Measurements:sgpsirs20sE7.a0:
  • inst_up_long_dome_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
more
sgpsirsE7.b1:
  • inst_up_long_case_temp
  • inst_up_long_dome_temp
  • up_long_netir
  • up_long_hemisp
  • up_long_hemisp_min
  • up_long_hemisp_std
  • up_long_hemisp_max
more

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