Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s10584-018-2308-x |
Projected increased risk of water deficit over major West African river basins under future climates | |
Sylla, Mouhamadou Bamba1; Faye, Aissatou1,2,3; Klutse, Nana Ama Browne4; Dimobe, Kangbeni1 | |
2018-11-01 | |
发表期刊 | CLIMATIC CHANGE
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ISSN | 0165-0009 |
EISSN | 1573-1480 |
出版年 | 2018 |
卷号 | 151期号:2页码:247-258 |
文章类型 | Article |
语种 | 英语 |
国家 | Burkina Faso; Nigeria; Italy; Ghana |
英文摘要 | Estimating climate change impacts on water resources in West Africa has been challenged by hydrological data scarcity and inconsistencies in the available climate projections. In this study, multi-model ensembles of the most recent global and regional climate models output are used to simulate the hydrologic impacts of climate change in five major river basins (i.e. Senegal, Gambia, Volta, Niger and Chad) that comprise most of West Africa. Under Representative Concentration Pathways 4.5 and 8.5, the results consistently project substantial decreases (10 to 40%) in potential water availability across the five major river basins. The largest changes are projected to occur in the Senegal basin, Gambia basin and the Sahelian part of the other river basins. The negative trends are steepest after 2050 and in the higher greenhouse gas forcing scenario. Therefore, in a business-as-usual world, reduced water availability combined with the region's rapidly growing population will have West Africa facing an unprecedented water deficit during the second half of the twenty-first century. However, greenhouse gas mitigation can help reduce this deficit. In the Volta basin, although potential water availability declines considerably, precipitation exceeds potential evapotranspiration during the monsoon season in both forcing scenarios, suggesting opportunities for adaptation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000451021600011 |
WOS关键词 | MULTIPLE GLOBAL CLIMATE ; CHANGE IMPACTS ; RESOURCES ; SENEGAL ; CMIP5 ; SIMULATIONS ; UNCERTAINTY ; TEMPERATURE ; VARIABILITY ; RUNOFF |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30136 |
专题 | 气候变化 |
作者单位 | 1.West African Sci Serv Ctr Climate Change & Adapte, Competence Ctr, Ouagadougou, Burkina Faso; 2.FUTA, West African Sci Serv Ctr Climate Change & Adapte, Grad Res Program West African Climate Syst, Akure, Nigeria; 3.Abdus Salaam Int Ctr Theoret Phys, Earth Syst Phys Sect, Trieste, Italy; 4.Ghana Atom Energy Commiss, Ghana Space Sci & Technol Inst, Accra, Ghana |
推荐引用方式 GB/T 7714 | Sylla, Mouhamadou Bamba,Faye, Aissatou,Klutse, Nana Ama Browne,et al. Projected increased risk of water deficit over major West African river basins under future climates[J]. CLIMATIC CHANGE,2018,151(2):247-258. |
APA | Sylla, Mouhamadou Bamba,Faye, Aissatou,Klutse, Nana Ama Browne,&Dimobe, Kangbeni.(2018).Projected increased risk of water deficit over major West African river basins under future climates.CLIMATIC CHANGE,151(2),247-258. |
MLA | Sylla, Mouhamadou Bamba,et al."Projected increased risk of water deficit over major West African river basins under future climates".CLIMATIC CHANGE 151.2(2018):247-258. |
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