Ethiopian Space Science and Technology Institute

Assessment of Radioactivity Levels and Associated Radiological Hazards Index in Lake Water from Eastern Areas of Lake Hawassa, Sidama Region, Ethiopia

In this study, naturally occurring radionuclide concentrations and their respective radiological hazard indices in water samples collected from the eastern area of Lake Hawassa were measured. Analysis was conducted using HPGe gamma-ray spectrometry for the radionuclides 238U (214...

Land suitability assessment for irrigated lentil cultivation in Southwest Shewa Zone, Ethiopia using remote sensing, GIS, and the analytic hierarchy process

Sustainable expansion of irrigated agriculture requires accurate identification of suitable land areas based on biophysical conditions. This study evaluates land suitability for irrigated lentils cultivation in Southwest Shewa Zone, Ethiopia, using an integrated Remote Sensing (R...

Analyzing the impacts of land use and land cover (LULC) changes on wetland Dynamics in Aba Samuel reservoir and its surroundings, central Ethiopia

This study investigates the impacts of land use and land cover (LULC) changes on wetlands ecosystems in the Aba Samuel Reservoir area, Ethiopia, over 30 years from 1994 to 2024. Remote sensing (RS), geographic information systems (GIS), and cloud-based processing using Google Ear...

Seismic Constraints of the 23 November 2025 Hayli Gubbi Eruption Sequence in Afar, Ethiopia

Abstract On 23 November 2025, the Hayli Gubbi volcano in Afar (Ethiopia) erupted in a massive explosion. We present the first seismic characterization using data from 13 regional seismological stations. Seismograms reveal signals consisting of a minute‐long precursor, a main erup...