Mapping changes in forest cover using multi-scale MODIS imagery
نویسندگان
چکیده
* Corresponding author. This study was carried out in the framework of the project “Using satellite images for automatic mapping of forest clear cuts and new plantations” (Project number 130) funded by Programa AGRO, Medida 8 Desenvolvimento Tecnológico e Demonstração, Acção 8.1 Desenvolvimento Experimental e Demonstração (DE&D). Abstract – A simple change detection methodology based on Vegetation Indices (VI) is applied to MODIS images with different spatial resolutions (250, 500 and 1000 m), in view of detecting changes in forest cover caused by forest fires, clear cuts and new plantations. The study also includes an analysis of the effect of the minimum mapping unit and of the different spatial resolutions on the technical characteristics of the final maps of forest-cover changes. The study is carried out with data from the central region of Portugal.
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تاریخ انتشار 2005