DQRID : D140115.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/18/2013011501/13/20141755Incorrect
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Subject:
SGP/SIRS/E31 - Intake fan failure
DataStreams:sgpsirs20sE31.a0, sgpsirsE31.b1
Description:
Beginning on 12/18/2013 approx. 01:30GMT the down_short_hemisp (PSP instrument) ventilator 
fan failed.  It was replaced on 1/13/2014 approx. 18GMT returning the down_short_hemisp 
measurement to normal operation.

During the specified time the downwelling shortwave data (down_short_hemisp) are suspect 
and not correctable.  Users are advised to use the derived down_short_hemisp available 
from the QCRAD VAP (BestEstimate_down_short_hemisp).  This is the usual recommended source 
for downwelling shortwave broadband irradiance.
Suggestions: 
Use QCRAD data
Measurements:sgpsirsE31.b1:
  • down_short_hemisp_std
  • down_short_hemisp_min
  • down_short_hemisp
  • down_short_hemisp_max
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sgpsirs20sE31.a0:
  • inst_global
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