气候变化领域集成服务门户(CCPortal): Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet

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DOI	10.5194/acp-21-15351-2021
	Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet
	Guy H.; Brooks I.M.; Carslaw K.S.; Murray B.J.; Walden V.P.; Shupe M.D.; Pettersen C.; Turner D.D.; Cox C.J.; Neff W.D.; Bennartz R.; Neely Iii R.R.
发表日期	2021
ISSN	1680-7316
起始页码	15351
结束页码	15374
卷号	21 期号:19
英文摘要	This study presents the first full annual cycle (2019-2020) of ambient surface aerosol particle number concentration measurements (condensation nuclei >g20gnm, N20) collected at Summit Station (Summit), in the centre of the Greenland Ice Sheet (72.58g gN, -38.45g gE; 3250gma.s.l.). The mean surface concentration in 2019 was 129gcm-3, with the 6gh mean ranging between 1 and 1441gcm-3. The highest monthly mean concentrations occurred during the late spring and summer, with the minimum concentrations occurring in February (mean: 18gcm-3). High-N20 events are linked to anomalous anticyclonic circulation over Greenland and the descent of free-tropospheric aerosol down to the surface, whereas low-N20 events are linked to anomalous cyclonic circulation over south-east Greenland that drives upslope flow and enhances precipitation en route to Summit. Fog strongly affects particle number concentrations, on average reducing N20 by 20g% during the first 3gh of fog formation. Extremely-low-N20 events (
语种	英语
scopus关键词	aerosol; cloud; concentration (composition); fog; particle size; seasonal variation; troposphere; Arctic; Greenland; Greenland Ice Sheet
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246503
作者单位	National Centre for Atmospheric Science, Leeds, United Kingdom; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Department of Civil and Environmental Engineering, Laboratory for Atmospheric Research, Washington State University, Pullman, WA, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Physical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, United States; Earth and Environmental Sciences, Vanderbilt University, Nashville, TN, United States; Global Systems Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States
推荐引用方式 GB/T 7714	Guy H.,Brooks I.M.,Carslaw K.S.,et al. Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet[J],2021,21(19).
APA	Guy H..,Brooks I.M..,Carslaw K.S..,Murray B.J..,Walden V.P..,...&Neely Iii R.R..(2021).Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	Guy H.,et al."Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).