气候变化领域集成服务门户(CCPortal): The fast response of Sahel precipitation to climate change allows effective mitigation action

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DOI	10.1038/s41612-021-00179-6
	The fast response of Sahel precipitation to climate change allows effective mitigation action
	Monerie P.-A.; Pohl B.; Gaetani M.
发表日期	2021
ISSN	23973722
卷号	4 期号:1
英文摘要	Climate change will drive major perturbations of the West African summer monsoon. A zonal contrast in precipitation will develop at the end of the century, with an increase in precipitation over the central Sahel and a decrease in precipitation over the western Sahel. Such a zonal contrast results from the antagonist effects of the fast (due to enhanced radiative warming over land, and over the North Hemisphere, relative to the South Hemisphere) and slow (associated with long-term changes in oceanic circulation) responses of precipitation to increasing greenhouse gases. While such changes have already been assessed, less attention has been given to their temporality, an issue of major importance to promote efficient mitigation and adaptation measures. Here, we analyse the future evolution of precipitation changes decomposed into a fast and a slow response, showing that the fast response dominates the slow one. From this evidence, we highlight that mitigation strategies may be successful at reducing the effect of climate change on Sahel precipitation within a few decades, by muting the fast response. This decomposition also allows for a better understanding of the uncertainty of climate model predictions in Africa. © 2021, The Author(s).
语种	英语
scopus关键词	climate change; climate modeling; greenhouse gas; monsoon; precipitation (climatology); temporal distribution; Sahel [Sub-Saharan Africa]
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177989
作者单位	National Centre for Atmospheric Science (NCAS), Department of Meteorology, University of Reading, Reading, United Kingdom; Centre de Recherches de Climatologie, UMR 6282 Biogéosciences, CNRS/Université de Bourgogne Franche-Comté, Dijon, France; Scuola Universitaria Superiore IUSS, Pavia, Italy
推荐引用方式 GB/T 7714	Monerie P.-A.,Pohl B.,Gaetani M.. The fast response of Sahel precipitation to climate change allows effective mitigation action[J],2021,4(1).
APA	Monerie P.-A.,Pohl B.,&Gaetani M..(2021).The fast response of Sahel precipitation to climate change allows effective mitigation action.npj Climate and Atmospheric Science,4(1).
MLA	Monerie P.-A.,et al."The fast response of Sahel precipitation to climate change allows effective mitigation action".npj Climate and Atmospheric Science 4.1(2021).