Satellite Data-Researching Effect On Solar Radiation By Clouds

The present study deals with effect of clouds on solar radiation, which adopts several simple methods including budging satellite's data. Judge clouds' effect on solar radiation by satellite cloud map gray scale values, therefore establish and confirm the relationship between them. Roughly acquire optical depth of clear sky and clouds from radiation station data and routine meteorological data of land surface, and the study the relationship between clouds' physical character and radiation.Obtain the relationship between surface and near-ground atmosphere, and then according to this estimate surface albedo and surface net. By analyzing the relationship between satellite visible spectra, infrared spectra, and water vapor spectra values and radiation, by means of radiation transfer theory, analyze and deducethe relationship between clouds and radiation, and establish relationships between satellite value and global radiation and net. Take into respective consideration clear sky and clouds, and correspondingly select the best patterns, by which we can estimate surface global radiation and net.