Subject: | SGP/SIRS/E15 - PSP dome contamination |
DataStreams: | sgpsirsE15.b1, sgpsirs20sE15.a0
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Description: | PSP dome was dirty. Afternoon values of downwelling shortwave radiation were less than
derived values by about 50 W/m^2.
PSP values compare well to derived PSP values after precip event on 02/29/04 1300-1600
GMT. Maintenance on 03/02 1713 GMT revealed no unusual contamination. Precip on 02/29
likely effectively cleaned the PSP dome. |
Suggestions: | Disregard afternoon PSP data from 1900-2300 GMT for clear skies |
Measurements: | sgpsirs20sE15.a0: - Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
more
sgpsirsE15.b1: - Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
- Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
- Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
Deviation(down_short_hemisp_std) - Down-welling unshaded pyranometer voltage(down_short_hemisp)
more
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