Abstract
In this paper, we apply a modification to the directional part of the sea surface height spectrum of Elfouhaily model. More particularly, we substitute the Elfouhaily direc- tional function f(K, ψ) by that suggested by McDaniel. With this modified spectrum, we study the anisotropic sea surface scattering problem by using the first order of the Small Slope Ap- proximation (SSA) model. Calculations of the normalized radar cross sections (NRCS) are made with the modified spectrum and compared with those of the Elfouhaily's one. The comparison with published experimental data shows an improvement about 3 dB for backscattering results in the crosswind direction. This spectrum modification is more important at moderate wind speeds than at higher ones. In bistatic configuration, the NRCS results is less sensitive to this spectrum modification.
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