Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia
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...
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ftslunivuppsala:oai:pub.epsilon.slu.se:14257 2023-05-15T17:30:24+02:00 Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia Drobyshev, Igor Bergeron, Yves de Vernal, Anne Moberg, Anders Ali, Adam A. Niklasson, Mats 2016 application/pdf https://pub.epsilon.slu.se/14257/ https://pub.epsilon.slu.se/14257/1/drobyshev_i_et_al_170426.pdf en eng eng https://pub.epsilon.slu.se/14257/1/drobyshev_i_et_al_170426.pdf Drobyshev, Igor and Bergeron, Yves and de Vernal, Anne and Moberg, Anders and Ali, Adam A. and Niklasson, Mats (2016). Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia. Scientific Reports. 6 , 1-13 [Research article] cc_by_4 CC-BY Ecology Climate Research Meteorology and Atmospheric Sciences Research article PeerReviewed info:eu-repo/semantics/article 2016 ftslunivuppsala 2022-01-09T19:14:14Z 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. Article in Journal/Newspaper North Atlantic Sea ice Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Ecology Climate Research Meteorology and Atmospheric Sciences |
spellingShingle |
Ecology Climate Research Meteorology and Atmospheric Sciences Drobyshev, Igor Bergeron, Yves de Vernal, Anne Moberg, Anders Ali, Adam A. Niklasson, Mats Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
topic_facet |
Ecology Climate Research Meteorology and Atmospheric Sciences |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Drobyshev, Igor Bergeron, Yves de Vernal, Anne Moberg, Anders Ali, Adam A. Niklasson, Mats |
author_facet |
Drobyshev, Igor Bergeron, Yves de Vernal, Anne Moberg, Anders Ali, Adam A. Niklasson, Mats |
author_sort |
Drobyshev, Igor |
title |
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
title_short |
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
title_full |
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
title_fullStr |
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
title_full_unstemmed |
Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia |
title_sort |
atlantic ssts control regime shifts in forest fire activity of northern scandinavia |
publishDate |
2016 |
url |
https://pub.epsilon.slu.se/14257/ https://pub.epsilon.slu.se/14257/1/drobyshev_i_et_al_170426.pdf |
genre |
North Atlantic Sea ice |
genre_facet |
North Atlantic Sea ice |
op_relation |
https://pub.epsilon.slu.se/14257/1/drobyshev_i_et_al_170426.pdf Drobyshev, Igor and Bergeron, Yves and de Vernal, Anne and Moberg, Anders and Ali, Adam A. and Niklasson, Mats (2016). Atlantic SSTs control regime shifts in forest fire activity of Northern Scandinavia. Scientific Reports. 6 , 1-13 [Research article] |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
_version_ |
1766126772303167488 |