![]() This paper assessed droughts over the whole basin by evaluating meteorological, agricultural, and hydrological drought indices. Drought assessment over a large-scale basin (e.g., the Blue Nile) is a challenging objective that has not been deeply tackled before except for small portions of the basin. Since drought results from interconnected phenomena, designing a composite drought index that includes several drought indices can accurately capture drought events. ![]() These indices provide a short message to stakeholders to adapt water resource management strategies. ![]() Drought indices represent a single value resulting from processing a considerable amount of data. Population growth and associated water demand add further stress on water resources, especially in periods of drought. Drought affects people more than any other natural disaster due to its widespread and significant negative impacts. Drought is a slow-onset phenomenon that evolves over a season or even years.
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