| Subject: | SGP/SIRS/E15 - Instrument problem |
| DataStreams: | sgpsirsE15.b1, sgpsirs20sE15.a0
|
| Description: | Short_direct_normal instrument not operating correctly during the affected time period. |
| Suggestions: | NIP data are not recoverable. Direct normal data can be reconstructed from global
hemispheric and global diffuse data using the following relationship:
global hemispheric = direct*cos(sza) + diffuse hemispheric |
| Measurements: | sgpsirs20sE15.a0: more
sgpsirsE15.b1: - short_direct_normal
- short_direct_normal_max
- short_direct_normal_min
- short_direct_normal_std
more
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