Assessing the impact of climate variability and climate change on runoff in West Africa: the case of Senegal and Nakambe River basins

被引：46
|
作者：
Karambiri, H. [1 ]
Garcia Galiano, S. G. [2 ]
Giraldo, J. D. [2 ]
Yacouba, H. [1 ]
Ibrahim, B. [1 ]
Barbier, B. [1 ]
Polcher, J. [3 ]
机构：
[1] Int Inst Water & Environm Engn 2iE, Ouagadougou 01, Burkina Faso
[2] Tech Univ Cartagena, Dept Civil Engn, Cartagena, Spain
[3] Univ Paris 06, CNRS, IPSL, Meteorol Dynam Lab, Paris, France
来源：
ATMOSPHERIC SCIENCE LETTERS | 2011年 / 12卷 / 01期
关键词：
climate change and variability; regional climate model; impact studies; droughts; runoff; West Africa; CONVECTION;
D O I：
10.1002/asl.317
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
West Africa and its people are very vulnerable to climate variability and changes. Increasing the knowledge of plausible trends of rainfall dry spell lengths (DSL) in the rainy season, and of runoff, enables the assessment of vulnerability and adaptive capacity of the system. These predictions are crucial from a water management and policy perspective. The analyses based on regional climate models (RCMs) and observed datasets exhibit non-stationary behavior and an increase of DSL. Our results highlight the difficulty of selected RCMs to reproduce present climate and their divergence in predicting future climate. Impacts on water resources depend not only on climate forcing but also on land surface conditions. Copyright (C) 2011 Royal Meteorological Society
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收藏
页码：109 / 115
页数：7
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