Ocean Science
Ocean Science
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Articles | Volume 22, issue 2
Articles | Volume 22, issue 2
https://doi.org/10.5194/os-22-1023-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-22-1023-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 2
Research article
 | 
26 Mar 2026
Research article |  | 26 Mar 2026

Characterisation of past marine heatwaves around South Pacific Island countries: what really matters?

Shilpa Lal, Sophie Cravatte, Christophe Menkes, Jed Macdonald, Romain Le Gendre, Ines Mangolte, Cyril Dutheil, Neil J. Holbrook, and Simon Nicol

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Short summary
This paper characterizes historical (1981–2023) marine heatwaves in the tropical southwestern Pacific, where they pose a challenge for marine resource dependent Islands. Heatwaves are distinguished as a function of their spatial extent, signature at the coast, and seasonality, to allow a better understanding of their impacts on ecosystems. Marine heatwaves are getting longer and more frequent, with greater spatial extents. Our results aim to inform the Pacific Islands on their vulnerability.
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