气候变化领域集成服务门户(CCPortal): Deposition of ionic species and black carbon to the Arctic snowpack: Combining snow pit observations with modeling

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DOI	10.5194/acp-19-10361-2019
	Deposition of ionic species and black carbon to the Arctic snowpack: Combining snow pit observations with modeling
	Jacobi H.-W.; Obleitner F.; Da Costa S.; Ginot P.; Eleftheriadis K.; Aas W.; Zanatta M.
发表日期	2019
ISSN	16807316
起始页码	10361
结束页码	10377
卷号	19 期号:15
英文摘要	Although aerosols in the Arctic have multiple and complex impacts on the regional climate, their removal due to deposition is still not well quantified. We combined meteorological, aerosol, precipitation, and snowpack observations with simulations to derive information about the deposition of sea salt components and black carbon (BC) from November 2011 to April 2012 to the Arctic snowpack at two locations close to Ny-Ålesund, Svalbard. The dominating role of sea salt and the contribution of dust for the composition of atmospheric aerosols were reflected in the seasonal composition of the snowpack. The strong alignment of the concentrations of the major sea salt components in the aerosols, the precipitation, and the snowpack is linked to the importance of wet deposition for transfer from the atmosphere to the snowpack. This agreement was less strong for monthly snow budgets and deposition, indicating important relocation of the impurities inside the snowpack after deposition. Wet deposition was less important for the transfer of nitrate, non-sea-salt sulfate, and BC to the snow during the winter period. The average BC concentration in the snowpack remains small, with a limited impact on snow albedo and melting. Nevertheless, the observations also indicate an important redistribution of BC in the snowpack, leading to layers with enhanced concentrations. The complex behavior of bromide due to modifications during sea salt aerosol formation and remobilization in the atmosphere and in the snow were not resolved because of the lack of bromide measurements in aerosols and precipitation. © 2019 BMJ Publishing Group. All rights reserved.
语种	英语
scopus关键词	aerosol composition; aerosol formation; black carbon; bromide; concentration (composition); ionic composition; sea salt; snowpack; wet deposition
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144211
作者单位	Institute for Geosciences and Environmental Research (IGE), Univ. Grenoble Alpes/CNRS/Grenoble INP/IRD, Grenoble, France; Institute of Atmospheric and Cryospheric Sciences, University of Innsbruck, Austria; Observatoire des Sciences de l'Univers de Grenoble (OSUG), Univ. Grenoble Alpes/IRD/CNRS/Irstea/Météo France, Grenoble, France; ERL, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR Demokritos, Athens, Greece; Norwegian Institute for Air Research, Kjeller, Norway; Alfred Wegener Institute (AWI), Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
推荐引用方式 GB/T 7714	Jacobi H.-W.,Obleitner F.,Da Costa S.,et al. Deposition of ionic species and black carbon to the Arctic snowpack: Combining snow pit observations with modeling[J],2019,19(15).
APA	Jacobi H.-W..,Obleitner F..,Da Costa S..,Ginot P..,Eleftheriadis K..,...&Zanatta M..(2019).Deposition of ionic species and black carbon to the Arctic snowpack: Combining snow pit observations with modeling.Atmospheric Chemistry and Physics,19(15).
MLA	Jacobi H.-W.,et al."Deposition of ionic species and black carbon to the Arctic snowpack: Combining snow pit observations with modeling".Atmospheric Chemistry and Physics 19.15(2019).