Multiple spectral filtering of cloud-modified solar radiation

摘要

A multiple spectral filter pyranometer system (MSFP) was developed at Western Illinois University (WIU) for studying diffuse cloud-modified and clear-sky global solar irradiation. In the MSFP system, four passbands are positioned spectrally for analyzing cloud optical properties, centre dot Cloud water droplet absorption and albedo centre dot Cloud top maximum albedo at 660 nm centre dot Cloud and atmospheric water vapor absorption and albedo centre dot Cloud UV irradiation enhancement A correlation is also made with cloudy and clear-sky model spectral data from Cape Canaveral, FL (FSEC) and measured spectral data from Golden, CO (NREL.).