TRACKING SOIL MOISTURE IN SOUTHERN AFRICA
The monitoring of soil moisture in Africa has been deficient due to the high cost of in situ measurement networks and the limitations of point-based measurements to provide a complete overview of large areas suitable for modeling. Now the European Space Agency (ESA) has made available online soil-moisture maps for the southern African subcontinent. The maps, created using data from ESA's Envisat satellite, are the first of their kind to have a spatial resolution of 1 kilometer with a temporal resolution of less than 1 week. The maps should help forecast periods of both limited moisture, which can destroy crops, and excessive moisture, which …
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