Impact of climate change on future precipitation amounts, seasonal distribution, and streamflow in the Omo-Gibe basin, Ethiopia

Envisaging the actual evapotranspiration and elucidating its effects under climate change scenarios on agrarian lands of bilate river basin in Ethiopia

“…The minimum average temperature in the northwest highlands, specifically in the Hossana province, was projected, with a predicted value of 14.71 C during the baseline periods. There may be an increase in the maximum average temperature at the end of the century based on future projections (Feyissa, 2018, Fita andAbate, 2022;Orkodjo et al, 2022). In spite of the rainfall patterns, the average temperature will practically increase throughout the basin and in all seasons (Figure 13a-e).…”

“…RCP8.5 has a higher seasonal temperature increment than RCP4.5. The average annual and seasonal temperature projections indicate rise over the basin, however summer seasons show less growth than the other seasons (Teshome and Zhang., 2019;Orkodjo et al, 2022;Ukumo et al, 2022). The pace of increase is most likely comparable to the global rate per decade (IPCC, 2007).…”

Watershed Hydrological Response in Developing Climate Change Resilience and Adaptation Strategies, case of Gilgal Gibe Watershed, Ethiopia

“…Trend analysis and verification of current and future changes in any long-term hydroclimatic variable are essential to estimate the future behavior of climate change due to increasing greenhouse gas concentrations in the earth's atmosphere. Presently, there are numerous most effective tools for hydro-climate dataset trend analysis among which Mann-Kendall test is widely applicable (Orkodjo et al 2022). Mann-Kendall (KM) test was applied by numerous scholars who intend to study the hydro-climate dataset behavior at present and over the coming future period.…”

“…Precipitation and temperature-based climate projection have been done by numerous scholars and researchers across the globe and in Ethiopia as well. For instance, Orkodjo et al(2022) on Omo Gibe river basin (Ethiopia), Hosseinzadehtalaei & Tabari(2020) over the whole European continent, Doulabian et al(2021) across different watershed in Iran. Uneven rainfall distribution and its considerable effects on climate sensitive sectors are perceived all over the globe, particularly in developing countries like Ethiopia(Zakaria et al 2022).…”

Impacts of LULC and climate changes on hydropower generation and development: A systematic review

“…Under the RCP8.5 scenario, the monthly streamflow ranged from −24 % to 24 %. [ 66 ] Impact of climate change on future precipitation amounts, seasonal distribution, and streamflow in the Omo-Gibe basin, Ethiopia SWAT Projected climate data from two GCMs under RCP4.5 and RCP8.5 1. An increase in temperature, but a notable drop in both the amount of precipitation and the streamflow.…”