气候变化领域集成服务门户(CCPortal): Impact of climate change on water resource potential and sediment yield of the Gibe III watershed, Omo-Gibe Basin, Ethiopia

CCPortal

DOI	10.2166/wcc.2024.292
	Impact of climate change on water resource potential and sediment yield of the Gibe III watershed, Omo-Gibe Basin, Ethiopia
	Gebremichael, Abiy; Kebede, Asfaw; Woyessa, Yali E.
发表日期	2024
ISSN	2040-2244
EISSN	2408-9354
起始页码	15
结束页码	3
卷号	15 期号:3
英文摘要	The impact of climate change on the water resource potential of the Gibe III watershed, Omo-Gibe Basin, Ethiopia, was investigated using the Soil and Water Assessment Tool (SWAT) model and selected climate models of Coupled Model Intercomparison Project Phase 5 (CMIP5) for future projection. Because the Omo-Gibe Basin in general and the Gibe III watershed in particular was the source of hydropower generation, more work toward updating knowledge of climate change impact on it is required so as to manage the sustained use of the water resource and prevent sedimentation of the reservoir. High-resolution (0.25(degrees) x 0.25(degrees)) datasets of some general circulation models (GCMs) such as GFDL-ESM2M, MPI-ESM-MR, CSIRO-MK3-6-0, NorESM1-M, and MIROC5 were downloaded for six stations. After calibrating and validating the Soil and WaterAassessment Tool (SWAT) model, the impact of climate change was simulated. Accordingly, the annual precipitation was expected to increase by 8.4 and 21.1% during 2050 and 2080, respectively; mean temperature was projected to increase by 1.85 and 2.8 C-degrees in 2050 and 2080, respectively; the stream flow was expected to increase by 55.5 and 81% by 2050 and 2080, respectively, from the base period (1990-2017). The scenario of mean annual sediment yield would increase by 64.5 and 138% by 2050 and 2080, respectively. Therefore, actions toward reducing excess runoff production in the catchment and timely removal of sediment from the reservoir are required.
英文关键词	climate change; Gibe III watershed; NEX-GDDP; sediment yield; stream flow; SWAT model
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001162371500001
来源期刊	JOURNAL OF WATER AND CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307488
作者单位	Haramaya University; Central University of Technology
推荐引用方式 GB/T 7714	Gebremichael, Abiy,Kebede, Asfaw,Woyessa, Yali E.. Impact of climate change on water resource potential and sediment yield of the Gibe III watershed, Omo-Gibe Basin, Ethiopia[J],2024,15(3).
APA	Gebremichael, Abiy,Kebede, Asfaw,&Woyessa, Yali E..(2024).Impact of climate change on water resource potential and sediment yield of the Gibe III watershed, Omo-Gibe Basin, Ethiopia.JOURNAL OF WATER AND CLIMATE CHANGE,15(3).
MLA	Gebremichael, Abiy,et al."Impact of climate change on water resource potential and sediment yield of the Gibe III watershed, Omo-Gibe Basin, Ethiopia".JOURNAL OF WATER AND CLIMATE CHANGE 15.3(2024).