Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic

Abstract The Northwest Atlantic, which has exhibited evidence of accelerated warming compared to the global ocean, also experienced several notable marine heatwaves (MHWs) over the last decade. We analyze spatiotemporal patterns of surface and subsurface temperature structure across the Northwest At...

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Autores principales:	E. Perez, S. Ryan, M. Andres, G. Gawarkiewicz, C. C. Ummenhofer, J. Bane, S. Haines
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d91be5033a474dacbd3aada115e4e92b
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spelling	oai:doaj.org-article:d91be5033a474dacbd3aada115e4e92b2021-12-02T17:51:16ZUnderstanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic10.1038/s41598-021-97012-02045-2322https://doaj.org/article/d91be5033a474dacbd3aada115e4e92b2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97012-0https://doaj.org/toc/2045-2322Abstract The Northwest Atlantic, which has exhibited evidence of accelerated warming compared to the global ocean, also experienced several notable marine heatwaves (MHWs) over the last decade. We analyze spatiotemporal patterns of surface and subsurface temperature structure across the Northwest Atlantic continental shelf and slope to assess the influences of atmospheric and oceanic processes on ocean temperatures. Here we focus on MHWs from 2015/16 and examine their physical drivers using observational and reanalysis products. We find that a combination of jet stream latitudinal position and ocean advection, mainly due to warm core rings shed by the Gulf Stream, plays a role in MHW development. While both atmospheric and oceanic drivers can lead to MHWs they have different temperature signatures with each affecting the vertical structure differently and horizontal spatial patterns of a MHW. Northwest Atlantic MHWs have significant socio-economic impacts and affect commercially important species such as squid and lobster.E. PerezS. RyanM. AndresG. GawarkiewiczC. C. UmmenhoferJ. BaneS. HainesNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q E. Perez S. Ryan M. Andres G. Gawarkiewicz C. C. Ummenhofer J. Bane S. Haines Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
description	Abstract The Northwest Atlantic, which has exhibited evidence of accelerated warming compared to the global ocean, also experienced several notable marine heatwaves (MHWs) over the last decade. We analyze spatiotemporal patterns of surface and subsurface temperature structure across the Northwest Atlantic continental shelf and slope to assess the influences of atmospheric and oceanic processes on ocean temperatures. Here we focus on MHWs from 2015/16 and examine their physical drivers using observational and reanalysis products. We find that a combination of jet stream latitudinal position and ocean advection, mainly due to warm core rings shed by the Gulf Stream, plays a role in MHW development. While both atmospheric and oceanic drivers can lead to MHWs they have different temperature signatures with each affecting the vertical structure differently and horizontal spatial patterns of a MHW. Northwest Atlantic MHWs have significant socio-economic impacts and affect commercially important species such as squid and lobster.
format	article
author	E. Perez S. Ryan M. Andres G. Gawarkiewicz C. C. Ummenhofer J. Bane S. Haines
author_facet	E. Perez S. Ryan M. Andres G. Gawarkiewicz C. C. Ummenhofer J. Bane S. Haines
author_sort	E. Perez
title	Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
title_short	Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
title_full	Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
title_fullStr	Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
title_full_unstemmed	Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic
title_sort	understanding physical drivers of the 2015/16 marine heatwaves in the northwest atlantic
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d91be5033a474dacbd3aada115e4e92b
work_keys_str_mv	AT eperez understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT sryan understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT mandres understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT ggawarkiewicz understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT ccummenhofer understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT jbane understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic AT shaines understandingphysicaldriversofthe201516marineheatwavesinthenorthwestatlantic
_version_	1718379316845215744

Understanding physical drivers of the 2015/16 marine heatwaves in the Northwest Atlantic

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