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Moschos, V.* ; Dzepina, K.* ; Bhattu, D.* ; Lamkaddam, H.* ; Casotto, R.* ; Daellenbach, K.R.* ; Canonaco, F.* ; Rai, P.* ; Aas, W.* ; Becagli, S.* ; Calzolai, G.* ; Eleftheriadis, K.* ; Moffett, C.E.* ; Schnelle-Kreis, J. ; Severi, M.* ; Sharma, S.* ; Skov, H.* ; Vestenius, M.* ; Zhang, W.* ; Hakola, H.* ; Hellen, H.* ; Huang, L.* ; Jaffrezo, J.L.* ; Massling, A.* ; Nøjgaard, J.K.* ; Petäjä, T.* ; Popovicheva, O.* ; Sheesley, R.J.* ; Traversi, R.* ; Yttri, K.E.* ; Schmale, J.* ; Prévôt, A.S.H.* ; Baltensperger, U.* ; El Haddad, I.*

Equal abundance of summertime natural and wintertime anthropogenic Arctic organic aerosols.

Nat. Geosc. 15, 196-202 (2022)
Verlagsversion Forschungsdaten DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Aerosols play an important yet uncertain role in modulating the radiation balance of the sensitive Arctic atmosphere. Organic aerosol is one of the most abundant, yet least understood, fractions of the Arctic aerosol mass. Here we use data from eight observatories that represent the entire Arctic to reveal the annual cycles in anthropogenic and biogenic sources of organic aerosol. We show that during winter, the organic aerosol in the Arctic is dominated by anthropogenic emissions, mainly from Eurasia, which consist of both direct combustion emissions and long-range transported, aged pollution. In summer, the decreasing anthropogenic pollution is replaced by natural emissions. These include marine secondary, biogenic secondary and primary biological emissions, which have the potential to be important to Arctic climate by modifying the cloud condensation nuclei properties and acting as ice-nucleating particles. Their source strength or atmospheric processing is sensitive to nutrient availability, solar radiation, temperature and snow cover. Our results provide a comprehensive understanding of the current pan-Arctic organic aerosol, which can be used to support modelling efforts that aim to quantify the climate impacts of emissions in this sensitive region.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Atmospheric Chemistry; Positive Matrix Factorization; Source Apportionment; Black Carbon; Atmospheric Aerosol; Multilinear Engine; Isoprene Emissions; Air-pollution; Snow Cover; Marine; Ocean
Sprache englisch
Veröffentlichungsjahr 2022
HGF-Berichtsjahr 2022
ISSN (print) / ISBN 1752-0894
e-ISSN 1752-0894
Zeitschrift Nature Geoscience
Quellenangaben Band: 15, Heft: 3, Seiten: 196-202 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Verlagsort London
Begutachtungsstatus Peer reviewed
Institut(e) Cooperation Group Comprehensive Molecular Analytics (CMA)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504500-001
Förderungen LABEX OSUG@2020
Russian Government
RFBR-DFG
RFBR
Environment & Climate Change Canada
Sino-Swiss Science and Technology Cooperation (SSSTC) within the project HAZECHINA
SNSF Scientific Exchanges grant SAFICA
SNSF Scientific Exchanges grant 'Source apportionment of Russian Arctic aerosol' (SARAA)
Swiss State Secretariat for Education, Research and Innovation
US Department of Energy
NOAA
Norwegian Environment Agency
Graduate School of Science and Technology, Aarhus University
iGOSP project
Danish Energy Agency
Danish EPA
Villum Foundation
C. Gus Glasscock, Jr, Endowed Fund for Excellence in Environmental Sciences
Ukpeagvik Inupiat Corporation
European Union's Horizon 2020 Framework Programme via the ERA-PLANET (The European Network for observing our changing Planet) project iCUPE (Integrative and Comprehensive Understanding on Polar Environments)
DOI 10.1038/s41561-021-00891-1
WOS ID WOS:000762340000002
Scopus ID 85125322731
PubMed ID 35341076
Erfassungsdatum 2022-05-02
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