Subject: | SGP/SIRS/E5 - Reprocess: Incorrect shortwave calibration coefficients |
DataStreams: | sgpsirsE5.b1, sgpsirs20sE5.a0
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Description: | Following a 13 day outage, data collection resumed with incorrect calibration coefficients
for the shortwave instruments. The correct calibrations were applied beginning 20070531
at 1752GMT. Longwave data were unaffected.
To back out data with incorrect shortwave cal coefficients perform the following
conversions on each 1 minute data element:
Downwelling Diffuse Shortwave (8-48): DD(cor) = DD*(113.61/113.56)
Upwelling Shortwave : US(cor) = US*(115.72/112.78)
Direct Normal : DN(cor) = DN * (121.56/120.14)
Downwelling Shortwave : DS(cor) = DS * (121.73/120.87) |
Suggestions: | Avoid all SW data during specified time period until reprocessed data are available. |
Measurements: | sgpsirsE5.b1: - down_short_diffuse_hemisp_max
- down_short_diffuse_hemisp
- up_short_hemisp
- down_short_diffuse_hemisp_std
- up_short_hemisp_std
- short_direct_normal_std
- down_short_hemisp_min
- short_direct_normal_max
- down_short_hemisp_max
- down_short_hemisp_std
- up_short_hemisp_max
- short_direct_normal
- down_short_diffuse_hemisp_min
- short_direct_normal_min
- up_short_hemisp_min
- down_short_hemisp
more
sgpsirs20sE5.a0: - inst_global
- inst_diffuse
- inst_up_short_hemisp
- inst_direct_normal
more
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