Title :
CLAMP: accounting for leaf clumping in radiative transfer modelling
Author :
Rochdi, N. ; Baret, F. ; Chelle, M.
Author_Institution :
Inst. Nat. de le Recherche Agronomique, Unite Climat, Sol et Environnement, Avignon, France
Abstract :
The sensitivity analysis of the gap fraction of canopy characteristics is investigated. The gap fraction governs the radiative transfer within canopies and the leaf clumping has an important contribution in these processes. Therefore, the variation of the leaf clumping parameter λ with canopy structure and view direction was examined. Thanks to the 3D computer canopy modelling. A new parameterization of the λ parameter was proposed.
Keywords :
forestry; geophysical techniques; parameter estimation; radiative transfer; 3D modelling; CLAMP; canopy characteristics; canopy structure; computer canopy modelling; gap fraction; leaf clumping parameter; parameterization; radiative transfer modelling; sensitivity analysis; Area measurement; Azimuth; Clamps; Crops; Needles; Prototypes; Reflectivity; Sensitivity analysis; Soil; Vegetation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293986
