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Monitoring the magnitude of land-cover change around the southern limits of the Sahara

Foody, G.M. (2001) Monitoring the magnitude of land-cover change around the southern limits of the Sahara Photogrammetric Engineering and Remote Sensing, 67, (7), pp. 841-847.

Record type: Article


Studies of land-cover change using satellite remote sensing are often constrained to depict land-cover conversions only, with the equally important modifications undetected or misrepresented, resulting in significant error. Desert fluctuations within the Sahel were examined using an approach that indicated the magnitude of land-cover changes. This showed that the conventional post-classification comparison method of change detection appeared to underestimate the area of land-cover change and, where a change was detected, typically overestimate its magnitude. At the regional scale, the land-cover changes detected were strongly related to rainfall variability. This relationship did not, however, explain changes at a finer spatial scale and indicated that dryland degradation, and its causes, may remain far from understood.

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Published date: 2001


Local EPrints ID: 16133
ISSN: 0099-1112
PURE UUID: 3e10c1fb-17ed-42d6-a564-f9e908fa7fb1

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Date deposited: 21 Jun 2005
Last modified: 17 Jul 2017 16:44

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Author: G.M. Foody

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