气候变化领域集成服务门户(CCPortal): Aeolian transport and deposition of carbonaceous aerosols over the Northwest Pacific Ocean in spring

CCPortal

DOI	10.1016/j.atmosenv.2019.117209
	Aeolian transport and deposition of carbonaceous aerosols over the Northwest Pacific Ocean in spring
	Wu Z.; Hu L.; Guo T.; Lin T.; Guo Z.
发表日期	2020
ISSN	1352-2310
卷号	223
英文摘要	The present study provides insight into the long-range transport of carbonaceous aerosols over the Northwest Pacific Ocean (NWP) based on marine aerosol samples collected onboard a research vessel in the spring of 2015. Organic carbon (OC) and elemental carbon (EC) concentrations showed maxima in proximity to land, with high levels also observed in advective air masses. The decoupled spatial variations in OC and EC levels in relatively pristine air masses from the Pacific, in which aerosol n-alkanes of marine origin were relatively high in abundance, revealed the influence of heterogeneity in air masses and suggested the release of n-alkanes from local marine environments. This was confirmed by the enhanced particle-bound fraction of marine organic matter-sourced n-alkanes, resulting in non-significant relationships between the gas–particle partition coefficient of n-alkanes and the corresponding sub-cooled liquid vapor pressure in some marine air masses. High OC/EC ratios over the NWP indicated secondary organic aerosol formation, possibly as a result of marine emissions followed by gas-to-particle conversion and/or aerosol aging during long-range transport from East Asia. Similar molecular profiles of n-alkanes were found in air and seawater particles in regions dominated by either marine or continental influence, reflecting the strengths of continental and/or marine input and more importantly, suggesting the occurrence of air–sea exchange through wind-induced marine emissions or atmospheric deposition. Relative to the East China Sea, dry particle deposition after long-range transport acted as a more important source for terrestrial lipids in the open NWP. © 2019 Elsevier Ltd
关键词	Carbonaceous aerosols East Asia n-Alkanes Northwest Pacific Ocean
语种	英语
scopus关键词	Aerosols; Deposition; Gas emissions; Meteorological problems; Oceanography; Organic carbon; Paraffins; Ships; Atmospheric depositions; Carbonaceous aerosol; Dry particle deposition; East Asia; Liquid vapor pressure; n-Alkanes; Pacific ocean; Secondary organic aerosols; Atmospheric movements; alkane; carbon; elemental carbon; organic carbon; aerosol composition; air mass; alkane; atmospheric deposition; elemental carbon; eolian process; partition coefficient; research vessel; vapor pressure; aerosol; marine environment; Pacific Ocean; priority journal; spring; vapor pressure; East China Sea; Pacific Ocean; Pacific Ocean (Northwest)
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249401
作者单位	College of Resources and Environment, Shanxi University of Finance and Economics, Taiyuan, 030006, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, China; Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Institute of Atmospheric Sciences, Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
推荐引用方式 GB/T 7714	Wu Z.,Hu L.,Guo T.,et al. Aeolian transport and deposition of carbonaceous aerosols over the Northwest Pacific Ocean in spring[J],2020,223.
APA	Wu Z.,Hu L.,Guo T.,Lin T.,&Guo Z..(2020).Aeolian transport and deposition of carbonaceous aerosols over the Northwest Pacific Ocean in spring.ATMOSPHERIC ENVIRONMENT,223.
MLA	Wu Z.,et al."Aeolian transport and deposition of carbonaceous aerosols over the Northwest Pacific Ocean in spring".ATMOSPHERIC ENVIRONMENT 223(2020).