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A global assessment of marine heatwaves and their drivers

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Holbrook, NJ ORCID: 0000-0002-3523-6254, Scannell, HA, Sen Gupta, A, Benthuysen, JA, Feng, M, Oliver, ECJ ORCID: 0000-0002-4006-2826, Alexander, LV, Burrows, MT, Donat, MG, Hobday, AJ, Moore, PJ, Perkins-Kirkpatrick, SE, Smale, DA, Straub, SC and Wernberg, T 2019 , 'A global assessment of marine heatwaves and their drivers' , Nature Communications, vol. 10 , pp. 1-13 , doi: 10.1038/s41467-019-10206-z.

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Abstract

Marine heatwaves (MHWs) can cause devastating impacts to marine life. Despite the serious consequences of MHWs, our understanding of their drivers is largely based on isolated case studies rather than any systematic unifying assessment. Here we provide the first global assessment under a consistent framework by combining a confidence assessment of the historical refereed literature from 1950 to February 2016, together with the analysis of MHWs determined from daily satellite sea surface temperatures from 1982–2016, to identify the important local processes, large-scale climate modes and teleconnections that are associated with MHWs regionally. Clear patterns emerge, including coherent relationships between enhanced or suppressed MHW occurrences with the dominant climate modes across most regions of the globe – an important exception being western boundary current regions where reports of MHW events are few and ocean-climate relationships are complex. These results provide a global baseline for future MHW process and prediction studies.

Item Type: Article
Authors/Creators:Holbrook, NJ and Scannell, HA and Sen Gupta, A and Benthuysen, JA and Feng, M and Oliver, ECJ and Alexander, LV and Burrows, MT and Donat, MG and Hobday, AJ and Moore, PJ and Perkins-Kirkpatrick, SE and Smale, DA and Straub, SC and Wernberg, T
Keywords: marine heatwaves, impacts to marine life, MHWs, drivers
Journal or Publication Title: Nature Communications
Publisher: Nature Publishing Group
ISSN: 2041-1723
DOI / ID Number: 10.1038/s41467-019-10206-z
Copyright Information:

Copyright 2019 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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