BRDF-corrected vegetation indices confirm seasonal pattern in greening of French Guiana's forests.

Abstract : As a toolset for monitoring changes in forest ecosystems, remote sensing is well suited to study the remote and otherwise inaccessible tropical forest tracts of French Guiana. In order to revisit hypotheses made in earlier studies regarding the ability of satellite sensors to observe phenological dynamics in the territory, vegetation index data was extracted from 12-year archives from 2 satellite sensors: the VEGETATION instrument on SPOT-4, and the MOderate Imaging Spectroradiometer (MODIS). Data were analyzed for seasonal trends, and at the scale of both all of French Guiana and at 4 smaller sites dispersed across the territory, the data indicate that the territory’s forests display a distinct seasonality in leaf flushing, with green-up peaks occurring each year in the September to October timeframe.
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https://hal.umontpellier.fr/hal-02274037
Contributeur : Yannick Brohard <>
Soumis le : jeudi 29 août 2019 - 14:22:32
Dernière modification le : jeudi 5 septembre 2019 - 16:25:05

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  • HAL Id : hal-02274037, version 1

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Emile Cherrington, Grégoire Vincent, Daniel Sabatier, Nicolas Barbier, Uta Berger, et al.. BRDF-corrected vegetation indices confirm seasonal pattern in greening of French Guiana's forests.. Revue Française de Photogrammétrie et de Télédétection, Société Française de Photogrammétrie et de Télédétection, 2015, pp.3-9. ⟨hal-02274037⟩

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