Articles | Volume 22, issue 2
https://doi.org/10.5194/os-22-1329-2026
https://doi.org/10.5194/os-22-1329-2026
Research article
 | 
27 Apr 2026
Research article |  | 27 Apr 2026

Marine heatwaves across the central South Pacific: characteristics, mechanisms, and modulation by El Niño Southern Oscillation

Bastien Pagli, Takeshi Izumo, Alexandre Barboni, Carla Chevillard, Cyril Dutheil, Raphaël Legrand, Christophe Menkes, Claire Rocuet, and Sophie Cravatte

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Latest update: 30 Apr 2026
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Short summary
Marine heatwaves—periods of unusually warm ocean temperatures—are becoming more frequent and intense with climate change. These events can harm marine ecosystems, especially in vulnerable regions like French Polynesia. Here, we used satellite sea surface temperature data and ocean reanalysis to characterize past events. We investigated their characteristics, variability linked to El Niño Southern Oscillation, and the physical mechanisms driving their onset and decay across the region.
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