Mapping and anticipating risk is a major issue in the fight against malaria, a disease causing
an estimated one million deaths each year. Approximately half the world's population is at …

Advanced Very High Resolution Radiometer (AVHRR), Normalized Difference Vegetation
Index data (NDVI, 1km2, 1985–2003) and modeled net primary production (NPP, 8km2 …

Scarcity of in situ vegetation data inhibits research and natural resource management in the
Sudano-Sahelian zone (SSZ). Satellite and aerial remote sensing (RS) constitute key …

Ever-more-pressing demands on the land from economic development, burgeoning cities,
and growing rural populations are driving unprecedented land-use change. In turn …

Abstract Analysis of change vectors in the multitemporal space, applied to multitemporal
local area coverage imagery obtained by the Advanced Very-High Resolution Radiometer …

Desertification is regarded as one of the major global environmental problems of the 20th
century and the African Sahel is often quoted as the most seriously affected region. Previous …

Rain-use efficiency (RUE; the ratio of vegetation productivity to annual precipitation) has
been suggested as a measure for assessing land degradation in arid/semi-arid areas. In the …

Aims Clarifying the spatiotemporal variations in precipitation‐use efficiency (PUE), the ratio
of vegetation above‐ground productivity to annual precipitation, will advance our …

Change-vector analysis in multi-temporal space is a powerful tool to analyse the nature and
magnitude of land-cover change. The change vector compares the difference in the time …

Drylands cover about 41% of E arth's land surface, and 65% of their area supports domestic
livestock that depends on the above‐ground net primary productivity (ANPP) of natural …