A simple solar radiation model applicable in numerical hydrodinamical modeling on seasonal time-scale

Abstract

       A solar radiation climatological data set is used to define a simple radiation model suitable for application in numerical hydrodynamical modeling. The model is based on the ÅNGSTRÖM empirical relation for albedo of the atmosphere and on a simplified function of sun height during the year. The model error is generally smaller than 20%. The results of the model are discussed in comparison with long time data series for clear sky conditions and actual measurements from the station at the Institute of Oceanography and Fisheries in Split.