气候变化领域集成服务门户(CCPortal): Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation

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DOI	10.1126/science.aar5629
	Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation
	Li Y.; Kalnay E.; Motesharrei S.; Rivas J.; Kucharski F.; Kirk-Davidoff D.; Bach E.; Zeng N.
发表日期	2018
ISSN	0036-8075
起始页码	1019
结束页码	1022
卷号	361 期号:6406
英文摘要	Wind and solar farms offer a major pathway to clean, renewable energies. However, these farms would significantly change land surface properties, and, if sufficiently large, the farms may lead to unintended climate consequences. In this study, we used a climate model with dynamic vegetation to show that large-scale installations of wind and solar farms covering the Sahara lead to a local temperature increase and more than a twofold precipitation increase, especially in the Sahel, through increased surface friction and reduced albedo. The resulting increase in vegetation further enhances precipitation, creating a positive albedo–precipitation–vegetation feedback that contributes ~80% of the precipitation increase for wind farms. This local enhancement is scale dependent and is particular to the Sahara, with small impacts in other deserts. © 2017 The Authors.
英文关键词	rain; albedo; climate modeling; desert; power plant; precipitation (climatology); rainfall; renewable resource; vegetation structure; wind farm; Africa south of the Sahara; albedo; Article; climate change; desert; feedback system; friction; high temperature; precipitation; priority journal; Sahel; solar energy; surface property; vegetation; wind; Africa; agricultural land; climate; plant; sunlight; theoretical model; Sahara; Africa, Northern; Climate; Climate Change; Farms; Models, Theoretical; Plants; Rain; Sunlight; Wind
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244534
作者单位	Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, United States; Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States; State Key Laboratory of Earth Surface Processes and Resources Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China; Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, United States; Department of Physics, University of Maryland, College Park, MD 20742, United States; Earth System Physics Section, Abdus Salam International Centre for Theoretical Physics, Trieste, I-34100, Italy; LASG, Institute of Atmospheric Physics, Chinese Academy of Science, Beijing, 100029, China
推荐引用方式 GB/T 7714	Li Y.,Kalnay E.,Motesharrei S.,et al. Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation[J],2018,361(6406).
APA	Li Y..,Kalnay E..,Motesharrei S..,Rivas J..,Kucharski F..,...&Zeng N..(2018).Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation.Science,361(6406).
MLA	Li Y.,et al."Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation".Science 361.6406(2018).