Ocean Science
Ocean Science
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Articles | Volume 22, issue 1
Articles | Volume 22, issue 1
https://doi.org/10.5194/os-22-587-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-22-587-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 1
Research article
 | 
12 Feb 2026
Research article |  | 12 Feb 2026

Characterising marine heatwaves in the Svalbard Archipelago and surrounding seas

Marianne Williams-Kerslake, Helene R. Langehaug, Ragnheid Skogseth, Frank Nilsen, Annette Samuelsen, Silvana Gonzalez, and Noel Keenlyside

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Short summary

Marine heatwaves – periods of extreme ocean temperatures – are increasing globally, posing a threat to marine ecosystems. One region where a high number of marine heatwave events per year has been observed is around Svalbard. This study characterises past marine heatwave events in this region, including their extent in terms of both distance and depth. We identified eight events west of Svalbard that were largely driven by the movement of warmer water into the region by ocean currents.

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Special issue on ocean extremes (55th International Liége...