气候变化领域集成服务门户(CCPortal): Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds

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DOI	10.1126/science.aav0566
	Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds
	Rosenfeld D.; Zhu Y.; Wang M.; Zheng Y.; Goren T.; Yu S.
发表日期	2019
ISSN	0036-8075
卷号	363 期号:6427
英文摘要	A lack of reliable estimates of cloud condensation nuclei (CCN) aerosols over oceans has severely limited our ability to quantify their effects on cloud properties and extent of cooling by reflecting solar radiation—a key uncertainty in anthropogenic climate forcing. We introduce a methodology for ascribing cloud properties to CCN and isolating the aerosol effects from meteorological effects. Its application showed that for a given meteorology, CCN explains three-fourths of the variability in the radiative cooling effect of clouds, mainly through affecting shallow cloud cover and water path. This reveals a much greater sensitivity of cloud radiative forcing to CCN than previously reported, which means too much cooling if incorporated into present climate models. This suggests the existence of compensating aerosol warming effects yet to be discovered, possibly through deep clouds. 2017 © The Authors.
英文关键词	sea water; aerosol; climate forcing; climate modeling; cloud condensation nucleus; cloud cover; cloud radiative forcing; concentration (composition); cooling; solar radiation; aerosol; Article; climate; cloud; cloud condensation nuclei; cooling; geographic distribution; geometry; greenhouse effect; meteorological phenomena; priority journal; radiative forcing; sea
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/245288
作者单位	Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, 91904, Israel; School of Atmospheric Sciences, Nanjing University, China; Meteorological Institute of Shaanxi Province, Xi’an, China; Joint International Research Laboratory of Atmospheric and Earth System Sciences, Institute for Climate and Global Change Research, Nanjing University, China; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; University of Leipzig, Leipzig, Germany; Research Center for Air Pollution and Health, Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, China; Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91123, United States; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
推荐引用方式 GB/T 7714	Rosenfeld D.,Zhu Y.,Wang M.,et al. Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds[J],2019,363(6427).
APA	Rosenfeld D.,Zhu Y.,Wang M.,Zheng Y.,Goren T.,&Yu S..(2019).Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds.Science,363(6427).
MLA	Rosenfeld D.,et al."Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds".Science 363.6427(2019).