A dearth of effective, practical tools for assessing and monitoring drought has constrained the fight against desertification. Oasis is fostering the use of quantitative and analytical methods for direct measurements of ecological processes such as evapo-
transpiration from inexpensive, frequently-sampled satellite data (Rosema 1993). These remote sensing analyses are combined with on-the-ground participatory assessments of community perceptions and valuations of drought and degradation. Combined with an understanding of ocean-atmosphere interactions, these tools will significantly strengthen the capacities of communities, nations and regions to develop drought and desertification predicting and coping strategies and tools.
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