Title: Rayspread: a Virtual Laboratory for Rapid BRF Simulations over 3-D Plant Canopies
Authors: WIDLOWSKI JEAN-LUCLAVERGNE ThomasPINTY BERNARDVERSTRAETE MICHELGOBRON NADINE
Citation: Computational Methods in Transport vol. 48 p. 211-234
Publisher: Springer Verlag
Publication Year: 2006
JRC N°: JRC31356
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC31356
Type: Articles in periodicals and books
Abstract: A concise overview of the impact of vegetation structure on the radiative transfer within plantcanopies is given. Furthermore, in the context of inverting 3-D RT models against satellite observations the need for speedy, yet accurate and reliable RT simulations over realistic 3-D canopy architectures are highlighted. To this effect, the Monte Carlo ray-tracing model RAYSPREAD makes use of a variance reduction technique, known as photon spreading, and the capability to operate in a multi-processor environment. Verification and benchmarking of the Rayspread model,as well as, a small study regarding the impact that 3-D woody structures may have with respect to the surface leaving BRF field are also provided.
JRC Directorate:Sustainable Resources

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