A
Aleksi Räsänen
Researcher at University of Helsinki
Publications - 53
Citations - 914
Aleksi Räsänen is an academic researcher from University of Helsinki. The author has contributed to research in topics: Peat & Tundra. The author has an hindex of 13, co-authored 41 publications receiving 541 citations. Previous affiliations of Aleksi Räsänen include University of Jyväskylä & Norwegian University of Science and Technology.
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A systematic review of dynamics in climate risk and vulnerability assessments
TL;DR: In this article, the authors present a systematic review of 42 sub-national climate risk and vulnerability assessments using an analytical framework with which they evaluated the conceptual approaches to vulnerability and exposure used, if current or future risks were assessed, and if and how changes over time (i.e. dynamics) were considered.
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Climate change, multiple stressors and human vulnerability : a systematic review
Aleksi Räsänen,Sirkku Juhola,Sirkku Juhola,Anja Nygren,Mira Käkönen,Maarit Kallio,Adrián Monge Monge,Markku Kanninen +7 more
TL;DR: In this paper, the authors systematically reviewed current climate change literature in order to examine how multiple processes that affect human vulnerability have been studied and concluded that there are multiple interacting stressors, whose interlinkages need to be carefully analyzed and targeted by policies.
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Data and resolution requirements in mapping vegetation in spatially heterogeneous landscapes
TL;DR: It is concluded that multiple different optical, topographical, and vegetation height datasets should be used when mapping vegetation in spatially heterogeneous landscapes, and that sub-meter resolution data (e.g. UAV or aerial) are necessary for the most accurate maps.
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Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic
Claire C. Treat,Maija E. Marushchak,Carolina Voigt,Yu Zhang,Zeli Tan,Zeli Tan,Qianlai Zhuang,Tarmo Virtanen,Aleksi Räsänen,Aleksi Räsänen,Christina Biasi,Gustaf Hugelius,Dmitry Kaverin,Paul A. Miller,Martin Stendel,Vladimir E. Romanovsky,Felix Rivkin,Pertti J. Martikainen,Narasinha J. Shurpali +18 more
TL;DR: The relative fraction of uplands versus wetlands was key to determining the net regional C balance at this and other Arctic tundra sites because wetlands were hot spots for C cycling in Arctic tondra ecosystems.
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What makes segmentation good? A case study in boreal forest habitat mapping
TL;DR: This study tested different supervised segmentation evaluation measures and visual interpretation in the case of boreal forest habitat mapping in Southern Finland and found out that there is no straightforward answer to the argument, since the definition of good segmentation is inconsistent.