| Title: | Equal abundance of summertime natural and wintertime anthropogenic Arctic organic aerosols |
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| Authors: | ID Moschos, Vaios, Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Dzepina, Katja, University of Nova Gorica, Ajdovscina, Slovenia; Max Planck Institute for Chemistry, Mainz, Germany; Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Bhattu, Deepika, Paul Scherrer Institute, Villigen, Switzerland; Indian Institute of Technology Jodhpur, India (Author)
ID Lamkaddam, Houssni, Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Casotto, Roberto, Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Daellenbach, Kaspar R., Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Canonaco, Francesco, Paul Scherrer Institute; Datalystica Ltd.; Villigen, Switzerland (Author)
ID Rai, Pragati, Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Aas, Wenche, Norwegian Institute for Air Research, Kjeller, Norway (Author)
ID Becagli, Silvia, University of Florence, Florence; Institute of Polar Sciences, ISP-CNR, Venice-Mestre, Italy (Author)
ID Calzolai, Giulia, National Institute for Nuclear Physics (INFN), Florence, Italy (Author)
ID Eleftheriadis, Konstantinos, NCSR Demokritos, Athens, Greece (Author)
ID Moffett, Claire E., Baylor University, Waco, Texas, USA (Author)
ID Schnelle-Kreis, Jürgen, Helmholtz Zentrum München, München, Germany (Author)
ID Severi, Mirko, University of Florence, Florence; Institute of Polar Sciences, ISP-CNR, Venice-Mestre, Italy (Author)
ID Sharma, Sangeeta, Environment and Climate Change Canada, Toronto, Canada (Author)
ID Skov, Henrik, Aarhus University, Roskilde, Denmark (Author)
ID Vestenius, Mika, Finnish Meteorological Institute, Helsinki, Finland (Author)
ID Zhang, Wendy, Environment and Climate Change Canada, Toronto, Canada (Author)
ID Hakola, Hannele, Finnish Meteorological Institute, Helsinki, Finland (Author)
ID Hellén, Heidi, Finnish Meteorological Institute, Helsinki, Finland (Author)
ID Huang, Lin, Environment and Climate Change Canada, Toronto, Canada (Author)
ID Jaffrezo, Jean-Luc, University of Grenoble Alpes, Grenoble, France (Author)
ID Massling, Andreas, Aarhus University, Roskilde, Denmark (Author)
ID Nøjgaard, Jakob K., The National Research Centre for the Working Environment, Copenhagen, Denmark (Author)
ID Petäjä, Tuuka, University of Helsinki, Helsinki, Finland (Author)
ID Popovicheva, Olga, Lomonosov Moscow State University, Moscow, Russia (Author)
ID Sheesley, Rebecca J., Baylor University, Waco, Texas, USA (Author)
ID Traversi, Rita, University of Florence, Florence; Institute of Polar Sciences, ISP-CNR, Venice-Mestre, Italy (Author)
ID Yttri, Karl Espen, Norwegian Institute for Air Research, Kjeller, Norway (Author)
ID Schmale, Julia, Paul Scherrer Institute, Villigen; École Polytechnique Fédérale de Lausanne, Lausanne; Switzerland (Author)
ID Prévôt, André S. H., Paul Scherrer Institute, Villigen, Switzerland (Author)
ID Baltensperger, Urs, Paul Scherrer Institute, Villigen, Switzerland (Author)
ID El Haddad, Imad, Paul Scherrer Institute, Villigen, Switzerland (Author) |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | 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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| Keywords: | Arctic, Organic aerosols, Emission sources, Climate change |
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| Publication version: | Version of Record |
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| Year of publishing: | 2022 |
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| Number of pages: | 10 |
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| Numbering: | February 2022 |
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| PID: | 20.500.12556/RUNG-7212 |
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| COBISS.SI-ID: | 99270915 |
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| DOI: | https://doi.org/10.1038/s41561-021-00891-1 |
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| NUK URN: | URN:SI:UNG:REP:AYYGPUGR |
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| Publication date in RUNG: | 01.03.2022 |
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| Views: | 2562 |
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| Downloads: | 0 |
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