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DOI | 10.1021/acs.est.9b00245 |
Size Distribution and Depolarization Properties of Aerosol Particles over the Northwest Pacific and Arctic Ocean from Shipborne Measurements during an R/V Xuelong Cruise | |
Tian, Yu1,2; Pan, Xiaole1; Yan, Jinpei3; Lin, Qi3; Sun, Yele1,2; Li, Mei4; Xie, Conghui1; Uno, Itsushi5; Liu, Hang1,2; Wang, Zhe1,5; Fu, Pingqing6; Wang, Zifa1,2,7 | |
发表日期 | 2019 |
ISSN | 0013-936X |
EISSN | 1520-5851 |
卷号 | 53期号:14页码:7984-7995 |
英文摘要 | Atmospheric aerosols over polar regions have attracted considerable attention for their pivotal effects on climate change. In this study, temporospatial variations in single-particle-based depolarization ratios (delta: s-polarized component divided by the total backward scattering intensity) were studied over the Northwest Pacific and the Arctic Ocean using an optical particle counter with a depolarization module. The delta value of aerosols was 0.06 +/- 0.01 for the entire observation period, 61 +/- 10% lower than the observations for coastal Japan (0.12 +/- 0.02) (Pan et al. Atmos. Chem. Phys. 2016, 16, 9863-9873) and inland China (0.19 +/- 0.02) (Tian et al. Atmos. Chem. Phys. 2018, 18, 18203-18217) in summer. The volume concentration showed two dominant size modes at 0.9 and 2 mu m. The supermicrometer particles were mostly related to sea-salt aerosols with a delta value of 0.09 over marine polar areas, similar to 22% larger than in the low-latitude region because of differences in chemical composition and dry air conditions. The delta values for fine particles (<1 mu m) were 0.05 +/- 0.1, 50% lower than inland anthropogenic pollutants, mainly because of the complex mixtures of submicrometer sea salts. High particle concentrations in the Arctic Ocean could mostly be attributed to the strong marine emission of sea salt associated with deep oceanic cyclones, whereas long-range transport pollutants from the continent were among the primary causes of high particle concentrations in the Northwest Pacific region. |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
来源期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/100564 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China; 3.Minist Nat Resources, Inst Oceanog 3, Xiamen 361005, Fujian, Peoples R China; 4.Jinan Univ, Inst Mass Spectrometer & Atmospher Environm, Guangzhou 510632, Guangdong, Peoples R China; 5.Kyushu Univ, Res Inst Appl Mech, Kasuga, Fukuoka 8168580, Japan; 6.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 7.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Fujian, Peoples R China |
推荐引用方式 GB/T 7714 | Tian, Yu,Pan, Xiaole,Yan, Jinpei,et al. Size Distribution and Depolarization Properties of Aerosol Particles over the Northwest Pacific and Arctic Ocean from Shipborne Measurements during an R/V Xuelong Cruise[J],2019,53(14):7984-7995. |
APA | Tian, Yu.,Pan, Xiaole.,Yan, Jinpei.,Lin, Qi.,Sun, Yele.,...&Wang, Zifa.(2019).Size Distribution and Depolarization Properties of Aerosol Particles over the Northwest Pacific and Arctic Ocean from Shipborne Measurements during an R/V Xuelong Cruise.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(14),7984-7995. |
MLA | Tian, Yu,et al."Size Distribution and Depolarization Properties of Aerosol Particles over the Northwest Pacific and Arctic Ocean from Shipborne Measurements during an R/V Xuelong Cruise".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.14(2019):7984-7995. |
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