DQRID : D091111.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/03/2009003005/05/20091300Suspect
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Subject:
GRW/SKYRAD/M1 - IRT grounding
DataStreams:grwskyrad60sM1.b1, grwskyrad20sM1.a0
Description:
The IRT analog output line appears to have adversely affected the
SKYRAD datalogger grounding.  This resulted in intermittent anomalous readings across all 
SKYRAD datalogger channels including logger voltage.

The problem was corrected by regrounding the analog cable.
Suggestions: 
SKYRAD data may be good during stable logger battery voltage periods. Bad data is not 

recoverable and generally all SKYRAD data during this time is suspect.
Measurements:grwskyrad20sM1.a0:
  • inst_down_long_hemisp1_tp
  • inst_down_long_hemisp2_case_resist
  • inst_diffuse
  • inst_down_long_hemisp1_case_resist
  • inst_direct_normal
  • inst_sky_ir_signal
  • inst_global
  • inst_down_long_hemisp2_dome_resist
  • inst_down_long_hemisp1_dome_resist
  • inst_down_long_hemisp2_tp
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grwskyrad60sM1.b1:
  • inst_down_long_hemisp2_dome_temp
  • inst_down_long_hemisp2_case_temp
  • down_short_hemisp
  • down_long_hemisp2
  • sky_ir_temp_max
  • down_long_hemisp1
  • sky_ir_temp_std
  • down_short_diffuse_hemisp
  • short_direct_normal_std
  • short_direct_normal_max
  • inst_down_long_hemisp1_tp
  • logger_temp
  • sky_ir_temp_min
  • vBatt
  • down_short_diffuse_hemisp_std
  • down_long_hemisp2_max
  • down_long_hemisp1_min
  • down_long_hemisp2_std
  • short_direct_normal_min
  • down_short_hemisp_min
  • down_short_diffuse_hemisp_max
  • inst_down_long_hemisp1_case_temp
  • short_direct_normal
  • inst_down_long_hemisp1_dome_temp
  • down_long_hemisp2_min
  • down_short_diffuse_hemisp_min
  • down_long_hemisp1_max
  • down_long_hemisp1_std
  • inst_down_long_hemisp2_tp
  • down_short_hemisp_max
  • down_short_hemisp_std
  • sky_ir_temp
more

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