Future intensification of extreme Aleutian low events and their climate impacts

Abstract Extreme Aleutian Low (AL) events have been associated with major ecosystem reorganisations and unusual weather patterns in the Pacific region, with serious socio-economic consequences. Yet, their future evolution and impacts on atmosphere–ocean interactions remain uncertain. Here, a large e...

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Autores principales:	K. Giamalaki, C. Beaulieu, S. A. Henson, A. P. Martin, H. Kassem, D. Faranda
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f8f4d790c50b4a32b042ede92c8d44e8
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spelling	oai:doaj.org-article:f8f4d790c50b4a32b042ede92c8d44e82021-12-02T15:15:59ZFuture intensification of extreme Aleutian low events and their climate impacts10.1038/s41598-021-97615-72045-2322https://doaj.org/article/f8f4d790c50b4a32b042ede92c8d44e82021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97615-7https://doaj.org/toc/2045-2322Abstract Extreme Aleutian Low (AL) events have been associated with major ecosystem reorganisations and unusual weather patterns in the Pacific region, with serious socio-economic consequences. Yet, their future evolution and impacts on atmosphere–ocean interactions remain uncertain. Here, a large ensemble of historical and future runs from the Community Earth System Model is used to investigate the evolution of AL extremes. The frequency and persistence of AL extremes are quantified and their connection with climatic variables is examined. AL extremes become more frequent and persistent under the RCP8.5 scenario, associated with changes in precipitation and air temperature patterns over North America. Future changes in AL extremes also increase the variability of the sea surface temperature and net heat fluxes in the Kuroshio Extension, the most significant heat and energy flux region of the basin. The increased frequency and persistence of future AL extremes may potentially cause substantial changes in fisheries and ecosystems of the entire Pacific region as a knock-on effect.K. GiamalakiC. BeaulieuS. A. HensonA. P. MartinH. KassemD. FarandaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q K. Giamalaki C. Beaulieu S. A. Henson A. P. Martin H. Kassem D. Faranda Future intensification of extreme Aleutian low events and their climate impacts
description	Abstract Extreme Aleutian Low (AL) events have been associated with major ecosystem reorganisations and unusual weather patterns in the Pacific region, with serious socio-economic consequences. Yet, their future evolution and impacts on atmosphere–ocean interactions remain uncertain. Here, a large ensemble of historical and future runs from the Community Earth System Model is used to investigate the evolution of AL extremes. The frequency and persistence of AL extremes are quantified and their connection with climatic variables is examined. AL extremes become more frequent and persistent under the RCP8.5 scenario, associated with changes in precipitation and air temperature patterns over North America. Future changes in AL extremes also increase the variability of the sea surface temperature and net heat fluxes in the Kuroshio Extension, the most significant heat and energy flux region of the basin. The increased frequency and persistence of future AL extremes may potentially cause substantial changes in fisheries and ecosystems of the entire Pacific region as a knock-on effect.
format	article
author	K. Giamalaki C. Beaulieu S. A. Henson A. P. Martin H. Kassem D. Faranda
author_facet	K. Giamalaki C. Beaulieu S. A. Henson A. P. Martin H. Kassem D. Faranda
author_sort	K. Giamalaki
title	Future intensification of extreme Aleutian low events and their climate impacts
title_short	Future intensification of extreme Aleutian low events and their climate impacts
title_full	Future intensification of extreme Aleutian low events and their climate impacts
title_fullStr	Future intensification of extreme Aleutian low events and their climate impacts
title_full_unstemmed	Future intensification of extreme Aleutian low events and their climate impacts
title_sort	future intensification of extreme aleutian low events and their climate impacts
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f8f4d790c50b4a32b042ede92c8d44e8
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Future intensification of extreme Aleutian low events and their climate impacts

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