11th Conference on Atmospheric Radiation and the 11th Conference on Cloud Physics

Friday, 7 June 2002
New Radiative Transfer Code SHARM-3D for the Land/Aerosol
Alexei Lyapustin, JCET/Univ. of Maryland Baltimore County, Greenbelt, MD
A systematic intercomparison between several radiative transfer codes was performed in order to validate the newly developed 3-D spherical harmonics code SHARM-3D. This code is designed for plane-parallel radiance and flux simulations in clear-skies conditions, when the atmosphere is horizontally uniform but surface can be arbitrarily non-homogeneous and anisotropic. For 1-D case, we used widely recognized and well validated codes DISORT and SHDOM, as well as 6S code particularly popular within the land remote sensing community. In 3-D regime, SHARM-3D was compared with SHDOM. Extensive study show that codes SHARM-3D and SHDOM agree to an accuracy of 1-4 percent under the very general conditions.

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