An inverse analysis of the radiative transfer in a two-layer heterogeneous medium

作者：Knupp D C^*; Silva Neto A J

来源：Inverse Problems in Science and Engineering, 2012, 20(7): 917-939.

DOI：10.1080/17415977.2011.624617

• radiative transfer
• inverse problem
• sensitivity analysis
• heterogeneous media

The radiative transfer in multi-layer composite media has numerous applications, for example, in regional and global climate models, Solar System bodies research, Earth remote sensing, and multi-layer clouds studies, among others. In this study, we focus on the inverse analysis of the radiative transfer problem in a two-layer plane-parallel medium. For the direct problem solution, we use the well-known Chandrasekhar%26apos;s discrete ordinates method combined with the finite difference method. We are interested in the estimation of the scattering and absorbing coefficients using the measured data of the emerging radiation at both boundary surfaces of the medium and also at the interface between the two layers. The inverse problem is implicitly formulated and the minimization of the defined objective function is achieved with the Levenberg-Marquardt method. The solutions obtained are investigated in the face of the sensitivity analysis.

• 出版日期2012