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pdf Understanding the Nile Basin Hydrology #

Evapotranspiration (ET) is one of the major components of the water balance over the Nile Basin and its sub-basins. It accounts for about 87% of the basin’s rainfall but this value varies from a sub-basin to another Based on land use/cover and prevailing climatic conditions. It is difficult to measure evapotranspiration but recent advances in satellite observations have enabled its estimation over large areas such as the Nile basin. The Nile Basin Initiative (NBI) has utilized such advances and generated adataset of ET estimates over the Nile Basin spanning the period 2000 to date. Analyzing this dataset revealed some interesting insights for water management.