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Differing Mechanisms of New Particle Formation at Two Arctic Sites
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Documents
- Geophysical Research Letters - 2021 - Beck - Differing Mechanisms of New Particle Formation at Two Arctic Sites
Final published version, 2.43 MB, PDF document
DOI
- https://doi.org/10.1029/2020GL091334
Final published version
- Lisa J. Beck, University of Helsinki ,
- Nina Sarnela, University of Helsinki ,
- Heikki Junninen, University of Helsinki, University of Tartu ,
- Clara J.M. Hoppe, Helmholtz Association of German Research Centres ,
- Olga Garmash, University of Helsinki ,
- Federico Bianchi, University of Helsinki ,
- Matthieu Riva, University of Helsinki, Universite Claude Bernard Lyon 1 ,
- Clemence Rose, Institute for Atmospheric and Earth System Research (INAR/Physics), University of Helsinki, Laboratoire de Météorologie Physique (LaMP) ,
- Otso Peräkylä, University of Helsinki ,
- Daniela Wimmer, University of Helsinki ,
- Oskari Kausiala, University of Helsinki ,
- Tuija Jokinen, University of Helsinki ,
- Lauri Ahonen, University of Helsinki ,
- Jyri Mikkilä, University of Helsinki ,
- Jani Hakala, University of Helsinki ,
- Xu Cheng He, University of Helsinki ,
- Jenni Kontkanen, University of Helsinki ,
- Klara K.E. Wolf, Helmholtz Association of German Research Centres ,
- David Cappelletti, University of Perugia ,
- Mauro Mazzola, National Research Council ,
- Rita Traversi, University of Florence ,
- Chiara Petroselli, University of Perugia ,
- Angelo P. Viola, National Research Council ,
- Vito Vitale, National Research Council ,
- Robert Lange ,
- Andreas Massling
- Jakob K. Nøjgaard ,
- Radovan Krejci, Stockholm University ,
- Linn Karlsson, Stockholm University ,
- Paul Zieger, Stockholm University ,
- Sehyun Jang, Pohang University of Science and Technology ,
- Kitack Lee, Pohang University of Science and Technology ,
- Ville Vakkari, Finnish Meteorological Institute, North West University ,
- Janne Lampilahti, University of Helsinki ,
- Roseline C. Thakur, University of Helsinki ,
- Katri Leino, University of Helsinki ,
- Juha Kangasluoma, University of Helsinki, Beijing University of Chemical Technology ,
- Ella Maria Duplissy, University of Helsinki ,
- Erkki Siivola, University of Helsinki ,
- Marjan Marbouti, University of Helsinki ,
- Yee Jun Tham, University of Helsinki ,
- Alfonso Saiz-Lopez, Consejo Superior de Investigaciones Científicas (CSIC) ,
- Tuukka Petäjä, University of Helsinki ,
- Mikael Ehn, Institute for Atmospheric and Earth System Research (INAR/Physics), University of Helsinki ,
- Douglas R. Worsnop, University of Helsinki, Aerodyne Research, Inc. ,
- Henrik Skov
- Markku Kulmala, University of Helsinki, Beijing University of Chemical Technology, Nanjing University ,
- Veli Matti Kerminen, University of Helsinki ,
- Mikko Sipilä, University of Helsinki
New particle formation in the Arctic atmosphere is an important source of aerosol particles. Understanding the processes of Arctic secondary aerosol formation is crucial due to their significant impact on cloud properties and therefore Arctic amplification. We observed the molecular formation of new particles from low-volatility vapors at two Arctic sites with differing surroundings. In Svalbard, sulfuric acid (SA) and methane sulfonic acid (MSA) contribute to the formation of secondary aerosol and to some extent to cloud condensation nuclei (CCN). This occurs via ion-induced nucleation of SA and NH3 and subsequent growth by mainly SA and MSA condensation during springtime and highly oxygenated organic molecules during summertime. By contrast, in an ice-covered region around Villum, we observed new particle formation driven by iodic acid but its concentration was insufficient to grow nucleated particles to CCN sizes. Our results provide new insight about sources and precursors of Arctic secondary aerosol particles.
| Original language | English |
|---|---|
| Article number | e2020GL091334 |
| Journal | Geophysical Research Letters |
| Volume | 48 |
| Issue | 4 |
| Number of pages | 11 |
| ISSN | 0094-8276 |
| DOIs | |
| Publication status | Published - Feb 2021 |
- Arctic atmosphere, low-volatility vapors, new particle formation
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