Tewabe Melkamu Fentahun

Debre Berhan University · Geology

The study area, Fogera-Dera Floodplain, has experienced frequent flooding events in the past several decades related to the topography of the region, mainly during the rainy season. In this study, Four Sentinel-1A Synthetic Aperture Radar (SAR) data was utilized to detect, map, and analyze flood water inundations in the 2020 extreme wet season. Bes...

Changes in lake surface area and fluctuations in water levels are common, especially in the Ethiopian Rift Valley region. The aim of this study was to present the space-time changes of lake Beseka from 1985 to 2020 using multitemporal Landsat images. Four spectral water indices, namely Normalized Differential Water Index (NDWI), Modified Normalized...

Seismic related natural hazard would be a major disaster as a result of the recent development and plan�ning of new reservoirs, road networks, and the establishment of new urban settlements in previously uninhabited areas. Producing seismic hazard sensitivity maps could provide very fundamental knowl�edge to understand the probable occurrence of di...

The complex nature of the Ethiopian aquifer requires detail, characterization, and analysis. Consequently, characterization of groundwater flow and major aquifer systems was conducted in the upper left bank of the Jemma River catchment in the Blue Nile Basin. The research area covered 1255 km2. The main objective of the research was to characterize...