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|Title:||Rayspread: a Virtual Laboratory for Rapid BRF Simulations over 3-D Plant Canopies|
|Authors:||WIDLOWSKI JEAN-LUC; LAVERGNE Thomas; PINTY BERNARD; VERSTRAETE MICHEL; GOBRON NADINE|
|Citation:||Computational Methods in Transport vol. 48 p. 211-234|
|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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