Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027702 |
Hygroscopicity- and Size-Resolved Measurements of Submicron Aerosol on the East Coast of the United States | |
Phillips, B. N.1; Royalty, T. M.1; Dawson, K. W.1; Reed, R.2; Petters, M. D.1; Meskhidze, N.1 | |
2018-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:3页码:1826-1839 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Atmospheric measurements of aerosol size-resolved hygroscopicity at submicron sizes are carried out at the United States Army Corps of Engineers Field Research Facility in Duck, North Carolina. The scientific aim of the field deployment is to gain improved understanding of the springtime advection of aerosols from the East Coast of the United States over the Atlantic and help to constrain assessments of anthropogenic particle contributions to the marine boundary layer aerosol budget. Air mass back trajectories show that the aerosol sampled at the coast is largely of continental origin that either gets transported directly from the land or spends some time over the Atlantic Ocean. Aerosol size-resolved hygroscopicity measurements are consistent with air masses of both continental and marine background that are heavily influenced by the continental outflow. Aitken and accumulation mode mean diameters range from 49.11.7nm to 66.90.8nm and 142.81.1nm to 155.02.8nm, respectively. Hygroscopicity distributions for 96nm, 188nm, and 284nm dry-sized particles show the mode hygroscopicity parameter range from 0.20 +/- 0.01 to 0.54 +/- 0.03, suggesting the presence of anthropogenic aerosols. We have used the method described by Royalty et al. (2017) to decompose the hygroscopicity distributions into three distinct classes based on the ambient aerosol hygroscopic properties relative to the hygroscopic properties of a reference compound. The method shows that continental outflow heavily influences aerosol chemical and physical properties at the East Coast, with hygroscopicities of submicron aerosols consistent with sulfate-containing species (62% to 83%), with small contributions from sodium- and carbon-containing particles (up to 9% and 37%, respectively). |
英文关键词 | aerosol hygroscopicity submicron aerosol coastal boundary layer hygroscopicity tandem differential mobility analyzer |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426074000022 |
WOS关键词 | SEA SPRAY AEROSOL ; ATMOSPHERIC BOUNDARY-LAYER ; SOUTH CHINA SEA ; MARINE AEROSOL ; CONTINENTAL OUTFLOW ; AIR-QUALITY ; PART 1 ; PARTICLES ; OCEAN ; ENVIRONMENTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32981 |
专题 | 气候变化 |
作者单位 | 1.North Carolina State Univ, Dept Marine Earth & Atmospher Sci, Box 8208, Raleigh, NC 27695 USA; 2.North Carolina State Univ, Dept Appl Ecol, Raleigh, NC USA |
推荐引用方式 GB/T 7714 | Phillips, B. N.,Royalty, T. M.,Dawson, K. W.,et al. Hygroscopicity- and Size-Resolved Measurements of Submicron Aerosol on the East Coast of the United States[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(3):1826-1839. |
APA | Phillips, B. N.,Royalty, T. M.,Dawson, K. W.,Reed, R.,Petters, M. D.,&Meskhidze, N..(2018).Hygroscopicity- and Size-Resolved Measurements of Submicron Aerosol on the East Coast of the United States.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(3),1826-1839. |
MLA | Phillips, B. N.,et al."Hygroscopicity- and Size-Resolved Measurements of Submicron Aerosol on the East Coast of the United States".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.3(2018):1826-1839. |
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