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European Geosciences Union, Atmospheric Chemistry and Physics, 22(16), p. 14421-14461, 2016

DOI: 10.5194/acp-16-14421-2016

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Pan-Eurasian Experiment (PEEX): Towards a holistic understanding of the feedbacks and interactions in the land-Atmosphere-ocean-society continuum in the northern Eurasian region

Journal article published in 2016 by Hanna K. Lappalainen, Veli-Matti Kerminen ORCID, Tuukka Petäjä ORCID, Theo Kurten, Aleksander Baklanov ORCID, Anatoly Shvidenko, Jaana Bäck ORCID, Timo Vihma ORCID, Pavel Alekseychik, Meinrat O. Andreae ORCID, Stephen R. Arnold, Mikhail Arshinov ORCID, Eija Asmi ORCID, Boris Belan ORCID, Gerrit de Leeuw ORCID and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Abstract. The northern Eurasian regions and Arctic Ocean will very likely undergo substantial changes during the next decades. The Arctic–boreal natural environments play a crucial role in the global climate via albedo change, carbon sources and sinks as well as atmospheric aerosol production from biogenic volatile organic compounds. Furthermore, it is expected that global trade activities, demographic movement, and use of natural resources will be increasing in the Arctic regions. There is a need for a novel research approach, which not only identifies and tackles the relevant multi-disciplinary research questions, but also is able to make a holistic system analysis of the expected feedbacks. In this paper, we introduce the research agenda of the Pan-Eurasian Experiment (PEEX), a multi-scale, multi-disciplinary and international program started in 2012 (https://www.atm.helsinki.fi/peex/). PEEX sets a research approach by which large-scale research topics are investigated from a system perspective and which aims to fill the key gaps in our understanding of the feedbacks and interactions between the land–atmosphere–aquatic–society continuum in the northern Eurasian region. We introduce here the state of the art for the key topics in the PEEX research agenda and present the future prospects of the research, which we see relevant in this context.