Sea-spray regulates sulfate cloud droplet activation over oceans

doi:10.1038/s41612-020-0116-2

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Sea-spray regulates sulfate cloud droplet activation over oceans
	Fossum, Kirsten N.2,3; Ovadnevaite, Jurgita 2,3; Ceburnis, Darius 2,3; Preissler, Jana 2,3; Snider, Jefferson R.1; Huang, Ru-Jin 2,3,4,6,7; Zuend, Andreas 5; O'Dowd, Colin 2,3
刊名	NPJ CLIMATE AND ATMOSPHERIC SCIENCE
	2020-04-08
卷号	3 期号:1 页码:6
ISSN号	2397-3722
DOI	10.1038/s41612-020-0116-2
通讯作者	O'Dowd, Colin(colin.odowd@nuigalway.ie)
英文摘要	Sulfate aerosols are typically the dominant source of cloud condensation nuclei (CCN) over remote oceans and their abundance is thought to be the dominating factor in determining oceanic cloud brightness. Their activation into cloud droplets depends on dynamics (i.e. vertical updrafts) and competition with other potential CCN sources for the condensing water. We present new experimental results from the remote Southern Ocean illustrating that, for a given updraft, the peak supersaturation reached in cloud, and consequently the number of droplets activated on sulfate nuclei, is strongly but inversely proportional to the concentration of sea-salt activated despite a 10-fold lower abundance. Greater sea-spray nuclei availability mostly suppresses sulfate aerosol activation leading to an overall decrease in cloud droplet concentrations; however, for high vertical updrafts and low sulfate aerosol availability, increased sea-spray can augment cloud droplet concentrations. This newly identified effect where sea-salt nuclei indirectly controls sulfate nuclei activation into cloud droplets could potentially lead to changes in the albedo of marine boundary layer clouds by as much as 30%.
资助项目	SFI under MaREI ; European Union's Seventh Framework Programme (FP7/2007-2013) project BACCHUS[603445] ; Spanish Ministry of Economy and Competitiveness (MINECO) as part of the PEGASO project[CTM2012-37615] ; Spanish Ministry of Economy and Competitiveness (MINECO) as part of the BIONUC project[CGL2013-49020-R]
WOS关键词	CONDENSATION NUCLEI ; THERMODYNAMIC MODEL ; AEROSOL ; SIZE ; PARAMETERIZATION ; ALBEDO ; SALT ; PARTICLE ; SULFUR ; GROWTH
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000524878900001
资助机构	SFI under MaREI ; European Union's Seventh Framework Programme (FP7/2007-2013) project BACCHUS ; Spanish Ministry of Economy and Competitiveness (MINECO) as part of the PEGASO project ; Spanish Ministry of Economy and Competitiveness (MINECO) as part of the BIONUC project
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12579]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	O'Dowd, Colin
作者单位	1.Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USA 2.Natl Univ Ireland Galway, Sch Phys, Ryan Inst, Ctr Climate & Air Pollut Studies, Univ Rd, Galway, Ireland 3.Natl Univ Ireland Galway, MaREI Galway, Univ Rd, Galway, Ireland 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 5.McGill Univ, Dept Atmospher & Ocean Sci, Montreal, PQ, Canada 6.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 7.Chinese Acad Sci, Inst Earth Environm, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Fossum, Kirsten N.,Ovadnevaite, Jurgita,Ceburnis, Darius,et al. Sea-spray regulates sulfate cloud droplet activation over oceans[J]. NPJ CLIMATE AND ATMOSPHERIC SCIENCE,2020,3(1):6.
APA	Fossum, Kirsten N..,Ovadnevaite, Jurgita.,Ceburnis, Darius.,Preissler, Jana.,Snider, Jefferson R..,...&O'Dowd, Colin.(2020).Sea-spray regulates sulfate cloud droplet activation over oceans.NPJ CLIMATE AND ATMOSPHERIC SCIENCE,3(1),6.
MLA	Fossum, Kirsten N.,et al."Sea-spray regulates sulfate cloud droplet activation over oceans".NPJ CLIMATE AND ATMOSPHERIC SCIENCE 3.1(2020):6.