Change search
ReferencesLink to record
Permanent link

Direct link
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia
Stockholm University, Faculty of Science, Department of Physical Geography.ORCID iD: 0000-0002-5177-9347
Show others and affiliations
2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 22532Article in journal (Refereed) Published
Abstract [en]

Understanding the drivers of the boreal forest fire activity is challenging due to the complexity of the interactions driving fire regimes. We analyzed drivers of forest fire activity in Northern Scandinavia (above 60 N) by combining modern and proxy data over the Holocene. The results suggest that the cold climate in northern Scandinavia was generally characterized by dry conditions favourable to periods of regionally increased fire activity. We propose that the cold conditions over the northern North Atlantic, associated with low SSTs, expansion of sea ice cover, and the southward shift in the position of the subpolar gyre, redirect southward the precipitation over Scandinavia, associated with the westerlies. This dynamics strengthens high pressure systems over Scandinavia and results in increased regional fire activity. Our study reveals a previously undocumented teleconnection between large scale climate and ocean dynamics over the North Atlantic and regional boreal forest fire activity in Northern Scandinavia. Consistency of the pattern observed annually through millennium scales suggests that a strong link between Atlantic SST and fire activity on multiple temporal scales over the entire Holocene is relevant for understanding future fire activity across the European boreal zone.

Place, publisher, year, edition, pages
2016. Vol. 6, 22532
National Category
Climate Research
Research subject
Physical Geography
Identifiers
URN: urn:nbn:se:su:diva-127853DOI: 10.1038/srep22532ISI: 000371292000001OAI: oai:DiVA.org:su-127853DiVA: diva2:911626
Funder
Swedish Research Council Formas, 239-2014-1866
Available from: 2016-03-14 Created: 2016-03-14 Last updated: 2016-03-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textFree full text

Search in DiVA

By author/editor
Moberg, Anders
By organisation
Department of Physical Geography
In the same journal
Scientific Reports
Climate Research

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 15 hits
ReferencesLink to record
Permanent link

Direct link