DQRID : D070206.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/31/2007022302/10/20070055Incorrect
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Subject:
TWP/SKYRAD/C2 - Short direct normal
DataStreams:twpskyrad60sC2.b1, twpskyrad20sC2.a0
Description:
The short_direct_normal (NIP) data are missing or incorrect due to instrument cable 
failure.  The cable was replaced.

The short_direct_normal can be calculated using the following relationship for shortwave 
radiometers:
global hemispheric = diffuse hemispheric + direct normal *cos (zenith angle)
Suggestions: 
Measurements:twpskyrad60sC2.b1:
  • short_direct_normal_min
  • short_direct_normal
  • short_direct_normal_std
  • short_direct_normal_max
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twpskyrad20sC2.a0:
  • inst_direct_normal
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