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- W2012609786 abstract "A good understanding of interactions of electromagnetic radiation with soil surface is important for a further improvement of remote sensing methods. In this paper, a radiosity-based analytical model for soil Directional Reflectance Factor's (DRF) distributions was developed and evaluated. The model was specifically dedicated to the study of radiation transfer for the soil surface under tillage practices. The soil was abstracted as two dimensional U-shaped or V-shaped geometric structures with periodic macroscopic variations. The roughness of the simulated surfaces was expressed as a ratio of the height to the width for the U and V-shaped structures. The assumption was made that the shadowing of soil surface, simulated by U or V-shaped grooves, has a greater influence on the soil reflectance distribution than the scattering properties of basic soil particles of silt and clay. Another assumption was that the soil is a perfectly diffuse reflector at a microscopic level, which is a prerequisite for the application of the radiosity method. This radiosity-based analytical model was evaluated by a forward Monte Carlo ray-tracing model under the same structural scenes and identical spectral parameters. The statistics of these two models' BRF fitting results for several soil structures under the same conditions showed the good agreements. By using the model, the physical mechanism of the soil bidirectional reflectance pattern was revealed." @default.
- W2012609786 created "2016-06-24" @default.
- W2012609786 creator A5039487617 @default.
- W2012609786 creator A5058658637 @default.
- W2012609786 date "2011-10-06" @default.
- W2012609786 modified "2023-09-23" @default.
- W2012609786 title "A radiosity-based model to compute the radiation transfer of soil surface" @default.
- W2012609786 doi "https://doi.org/10.1117/12.898131" @default.
- W2012609786 hasPublicationYear "2011" @default.
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