气候变化领域集成服务门户(CCPortal): Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei

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DOI	10.1029/2019JD031448
	Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei
	Takegawa N.; Seto T.; Moteki N.; Koike M.; Oshima N.; Adachi K.; Kita K.; Takami A.; Kondo Y.
发表日期	2020
ISSN	2169897X
卷号	125 期号:9
英文摘要	Aircraft measurements of aerosols were conducted over the Yellow Sea and the East China Sea from February 14 to March 10, 2013, during the Aerosol Radiative Forcing in East Asia 2013 Winter campaign. Ground-based measurements of aerosols were also conducted on Fukue Island (32.8°N, 128.7°E), located near the boundary of the Yellow Sea and the East China Sea. The aircraft measurements revealed large increases in particle number concentrations in the nucleation mode (2.5–10 nm and up to ~105 cm−3) at altitudes of ~0.5–3 km over the Yellow Sea. This was attributed to enhanced new particle formation (NPF) above the marine boundary layer over the Yellow Sea. The number ratios of Aitken-mode (10–90 nm) or accumulation-mode (>90 nm) particles to black carbon particles (tracer for primary emissions) were used to quantify the effects of NPF on particle number concentrations. We estimated that NPF increased median Aitken-mode particle number concentrations by an order of magnitude at altitudes of ~1–3 km over the Yellow Sea. Synchronized aircraft and ground-based data suggest that vertical transport of Aitken-mode particles formed over the Yellow Sea led to a large variability in the particle growth events observed on Fukue Island. A shift of sea surface temperature near Fukue Island and the resultant promotion of vertical mixing are probably the key mechanisms responsible for this complex feature. Evolution of accumulation-mode particles was observed farther downwind over the East China Sea, suggesting significant impacts of NPF on the regional distributions of cloud condensation nuclei. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Aerosol; East Asia; New particle formation
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186014
作者单位	Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo, Japan; Department of Chemical and Material Engineering, Kanazawa University, Kanazawa, Japan; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo, Japan; Meteorological Research Institute, Tsukuba, Ibaraki, Japan; Graduate School of Science and Engineering, Ibaraki University, Mito, Ibaraki, Japan; National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan; National Institute of Polar Research, Tachikawa, Tokyo, Japan
推荐引用方式 GB/T 7714	Takegawa N.,Seto T.,Moteki N.,et al. Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei[J],2020,125(9).
APA	Takegawa N..,Seto T..,Moteki N..,Koike M..,Oshima N..,...&Kondo Y..(2020).Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei.Journal of Geophysical Research: Atmospheres,125(9).
MLA	Takegawa N.,et al."Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei".Journal of Geophysical Research: Atmospheres 125.9(2020).