Avaliação da Função de Fase de Henyey-Greenstein no Transporte Radiativo Unidimensional com Método ADO: Aplicações em Modelagem de Vegetações

Abstract

This study applies the Analytical Discrete Ordinates Method (ADO) to the solution of the one-dimensional radiative transfer equation in vegetation canopies. The comparison between the analytical form of the Henyey–Greenstein phase function and its Legendre polynomial expansion showed that the truncated expansion (L = 99) accurately reproduces the exact values and that convergence is achieved for N > 30. The adoption of Python in the development of the ADO routines enabled an integrated structure and automated computation of the relevant quantities. The results demonstrate the method’s efficiency and accuracy in the analysis of radiative transfer in optically thick and anisotropic vegetative media.