Keywordssmall reservoir; delineation; image classification; naive Bayesian classification; polarimetry; remote sensing; SAR; semi arid; backscatter analysis; passive microwave remote sensing; data assimilation; numerical forecast; soil moisture; clouds; precipitation; evapotranspiration; FAO-56; NDVI; soil moisture; ERS/WSC; SPOT-VGT; remote sensing; crop water requirements; irrigation performance; semi-arid climate; biophysical variables; evapotranspiration; vegetation productivity; NDVI; land cover; climate; rainfall; trend analysis; Nile Basin; evaporative fraction; semi-arid rangeland; biomass estimation; Center-MORPHing (CMORPH); Gilgel Abbay; satellite rainfall; bias correction; runoff modeling; evapotranspiration; blue water; irrigation; classification; remote sensing; land surface model; GRACE satellite mission; regional water mass solutions; water resource management; NWSAS drought; African monsoon; evapotranspiration; MOD16; eddy covariance; flux tower; Penman-Monteith; satellite altimetry; Landsat; reservoir discharge; Lake Nasser; Roseires Reservoir; Nile Basin; soil moisture; SAR; Envisat ASAR; change detection; Africa; accuracy assessment; mapping aquatic vegetation; coarse resolution; Lake Victoria; water resource management; information systems; Earth observation; Africa; satellite altimetry; Congo Basin; regional hydrology; K-means; actual evapotranspiration; drought; irrigation; blue water; water resources management; Nile Basin; evapotranspiration; rainfall; remote sensing; water production; water consumption; water accounting; Synthetic Aperture Radar; Sentinel-1; water resources; semi-arid regions; reservoirs management; irrigation; scheduling; remote sensing; winter wheat; near real-time; evapotranspiration; semi-arid areas; Sentinel-2; SPOT4 (Take5); urbanization; rainfall; remote sensing; runoff; TOPMODEL; synthetic aperture radar; hydraulic roughness; relative surface roughness; vegetation mapping; hydraulic modeling; Inner Niger Delta; MODIS; TRMM; inundation
