Land Cover Map of Northern Madagascar
收藏DataCite Commons2026-05-05 更新2025-04-16 收录
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https://yareta.unige.ch/archives/33131172-7674-4750-9188-fd03486cf0c4
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资源简介:
This map focuses on northern Madagascar using Google Earth Engine & Sentinel-2 imagery for land cover classification. The main aims of this work are to produce a current land cover map of northern Madagascar with a high spatial resolution and, at the same time, to make the generation scripts freely accessible to all interested parties, enabling easy updates, and improvement. Four classes were defined: forest, soil, non-forest vegetation, water. Spectral indices & covariates enhance classification. Random Forest algorithm employed with sample-based evaluation. The 10 meters land cover classification achieved an overall accuracy of 96% and a precision of approximately 93%. While broadly aligning with field observations (1994-2023), the model lacks the precision to distinguish various forest types due to insufficient field data. Further improvements could involve statistical optimization, exploration of RADAR/LIDAR data, hyperspectral imaging, and unsupervised classification.
提供机构:
Université de Genève, Yareta
创建时间:
2024-12-16



