Application of integral parametrization “SAIL” for climatology incoming shortwave radiation fluxes

Abstract Along with field and satellite data, the calculation of fluxes using integral parameterizations can become a source of information about incoming shortwave radiation fluxes on the sea surface. In this work, we used the results of applying the SAIL parametrization created at the IO RAS, based on measurements of incoming shortwave radiation fluxes to the surface of the Atlantic Ocean and the corresponding meteorological parameters. The main task of such parameterizations is to construct climatology of shortwave radiation fluxes according to VOS data. In the course of the work, the new cloud climatology CLAAS ed.2 was used as input to calculate the average daily fields of the incoming shortwave radiation fluxes to the surface of the Atlantic Ocean. As reference data, we used a satellite database of shortwave radiation fluxes for the Atlantic Ocean - SARAH ed. 2. In conclusion, it can be noted that the SAIL parameterization works very well for a total cloud score of up to 4 octa. Further development of the SAIL parameterization is possible by separately taking into account the direct and diffuse flux of incoming shortwave radiation, since as part of the growth of possible cloud regimes, it is very important to know when the flux prevails over the diffuse and when vice versa.