Exploitation of radiative transfer model for assessing solar radiation: the relative importance of atmospheric constituents

摘要: Solar radiation is modified in its way downwards by the content of atmosphere. Quantifying influences parameters describing optical state atmosphere necessary for development a method assessment solar surface irradiance (SSI). This paper performs an inventory variables (e.g., cloud) and their attributes depth) available operational mode then assesses to which degree uncertainty on attribute variable –including absence value –leads departure from perfect result, i.e., when assuming that all are known with accuracy. Clouds most important SSI. Aerosol loading type, water vapour amount atmospheric profile have great influence. Ground albedo has influence diffuse part spectral distribution The vertical position geometrical thickness clouds negligible. Thus, solution RTM cloudy equivalent product obtained under clear sky extinction coefficient due cloud. results combined data availability design new Heliosat-4 assessing