Hypertropik project for HYPXIM mission. Mapping tropical biodiversity using spectroscopic imagery : characterization of structural and chemical diversity using 3-D radiative transfer modeling

Abstract : In tropical forests, ecological processes heavily depend on the structure of the canopy (size, shape, dominance of trees) and also the ability of each species to capture light and nutrients in the soil. Airborne HR imaging spectroscopy has demonstrated its potential in tropical environments: Confirmation that trees structure combined with leaf biochemical properties influence the radiometric signal reflected by vegetation and contribute to the estimation of biodiversity; Identification of tree species; Mapping at fine scales as well local species diversity and changes in forest species communities. But what performance and limits for spaceborne system ? This presentation highlight the consolidation work made to prepare the HYPXIM Satellite Mission that aims to provide information about the characteristics of the vegetation from local scale (crowns) to regional scale (species communities across landscapes). HYPXIM will provide estimates of vegetation properties with sufficient precision to force the model variables or data assimilation procedures....
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http://hal.ird.fr/ird-01143899
Contributeur : Christophe Proisy <>
Soumis le : lundi 20 avril 2015 - 15:37:40
Dernière modification le : mardi 29 mai 2018 - 12:50:24

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  • HAL Id : ird-01143899, version 1

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Jean-Baptiste Feret, Jean-Philippe Gastellu-Etchegorry, Marie-Jose Lefèvre-Fonollosa, Christophe Proisy, Gregory P. Asner. Hypertropik project for HYPXIM mission. Mapping tropical biodiversity using spectroscopic imagery : characterization of structural and chemical diversity using 3-D radiative transfer modeling. 9th EARSeL SIG Imaging Spectroscopy workshop, Apr 2015, Luxembourg, Luxembourg. 2015. 〈ird-01143899〉

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