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Shipborne observations reveal contrasting Arctic marine, Arctic terrestrial and Pacific marine aerosol properties

Cited 15 time in wos
Cited 15 time in scopus
Title
Shipborne observations reveal contrasting Arctic marine, Arctic terrestrial and Pacific marine aerosol properties
Other Titles
아라온 대기 관측 중 북극해, 북극 육상, 태평양에서 기원한 에어로졸의 특성 파악
Authors
Park, Jiyeon
Dall'Osto, Manuel
Park, Kihong
Gim, Yeontae
Kang, Hyo Jin
Jang, Eunho
Park, Ki-Tae
Park, Minsu
Yum, Seong Soo
Jung, Jinyoung
Lee, Bang Yong
Yoon, Young Jun
Subject
Environmental Sciences & EcologyMeteorology & Atmospheric Sciences
Keywords
CLOUD CONDENSATION NUCLEIPARTICLE FORMATION EVENTSCHEMICAL-COMPOSITION MEASUREMENTSORGANIC-COMPOUND EMISSIONSNUCLEATION MODE PARTICLESKING SEJONG STATIONSIZE-DISTRIBUTIONATMOSPHERIC PARTICLESANTARCTIC PENINSULAZEPPELIN STATION
Issue Date
2020-05-13
Citation
Park, Jiyeon, et al. 2020. "Shipborne observations reveal contrasting Arctic marine, Arctic terrestrial and Pacific marine aerosol properties". ATMOSPHERIC CHEMISTRY AND PHYSICS, 20(9): 5573-5590.
Abstract
There are few shipborne observations addressing the factors influencing the relationships of the formation and growth of aerosol particles with cloud condensation nuclei (CCN) in remote marine environments. In this study, the physical properties of aerosol particles throughout the Arctic Ocean and Pacific Ocean were measured aboard the Korean icebreaker R/V Araon during the summer of 2017 for 25 d. A number of new particle formation (NPF) events and growth were frequently observed in both Arctic terrestrial and Arctic marine air masses. By striking contrast, NPF events were not detected in Pacific marine air masses. Three major aerosol categories are therefore discussed: (1) Arctic marine (aerosol number concentration CN2.5: 413 +/- 442 cm(-3)), (2) Arctic terrestrial (CN2.5: 1622 +/- 1450 cm(-3)) and (3) Pacific marine (CN2.5: 397 +/- 185 cm(-3)), following air mass back-trajectory analysis. A major conclusion of this study is not only that the Arctic Ocean is a major source of secondary aerosol formation relative to the Pacific Ocean but also that open-ocean sympagic and terrestrially influenced coastal ecosystems both contribute to shaping aerosol size distributions. We suggest that terrestrial ecosystems - including river outflows and tundra - strongly affect aerosol emissions in the Arctic coastal areas, possibly more than anthropogenic Arctic emissions. The increased river discharge, tundra emissions and melting sea ice should be considered in future Arctic atmospheric composition and climate simulations. The average CCN concentrations at a supersaturation ratios of 0.4 % were 35 +/- 40 cm(-3), 71 +/- 47 cm(-3) and 204 +/- 87 cm(-3) for Arctic marine, Arctic terrestrial and Pacific marine aerosol categories, respectively. Our results aim to help evaluate how anthropogenic and natural atmospheric sources and processes affect the aerosol composition and cloud properties.
URI
https://repository.kopri.re.kr/handle/201206/13044
DOI
http://dx.doi.org/10.5194/acp-20-5573-2020
Type
Article
Station
Araon
Indexed
SCI
Appears in Collections  
2017-2018, A study on physical properties of nanoparticles throughArctic shipping route of ARAON (17-18) / Park, Jiyeon (PE17390)
2020-2020, Arctic permafrost environment change monitoring and prediction method developments (20-20) / Lee, Bang Yong (PN20081)
2020-2020, Investigation on formation and growth of aerosols and its climate feedback roles in Antarctic atmosphere (20-20) / Park, Ki-Tae (PE20060)
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