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Cartographie harmonisée des mangroves de l'Outre-mer français

Abstract : Based on a standardized typology, this thesis aims to propose a method for mapping the French Overseas mangroves. Several sets of satellite data are used to (i) determine mangrove extent, (ii) quantify canopy closure, (iii) quantify canopy height, and (iv) identify main species. Determination of mangrove extent was possible by using spectral characteristics of mangroves in the short wave infrared wavelength observed on the Landsat and Sentinel-2 images. Quantification of canopy closure is based on a fully constrained algorithm (FCLSU) of linear spectral mixture analysis of pixels of a very high resolution Pléiades images. Quantification of canopy height was performed using photogrammetric analysis of WorldView-3 stereoscopic panchromatic images (0.3 meters resolution). Finally, discrimination of main mangrove species was permitted through the use of spectral surveys and calibration of spectral properties of the different species observed on the satellite images.
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Contributor : Florent Taureau <>
Submitted on : Wednesday, January 31, 2018 - 7:28:13 PM
Last modification on : Friday, September 25, 2020 - 3:35:53 AM
Long-term archiving on: : Friday, May 25, 2018 - 6:13:11 PM


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  • HAL Id : tel-01698117, version 1


Florent Taureau. Cartographie harmonisée des mangroves de l'Outre-mer français. Sciences de l'environnement. Université de Nantes (UNAM), 2017. Français. ⟨tel-01698117⟩



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