Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/wcd-7-1779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-7-1779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Research article
 | 
16 Sep 2026
Research article |  | 16 Sep 2026

Meteorological drivers of extreme swells on the Peruvian coast

Gonzalo Agurto Barragán, Soledad Collazo, and Ricardo García-Herrera

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Short summary
Large swells can travel thousands of kilometers and impact the Peruvian coast. Using Peruvian Navy warnings and ERA5 reanalysis, we compared extreme swells from the Southern and Northern Hemispheres. In both cases, a deep Pacific storm aligned with a strengthened jet stream sustained strong winds over swell-generation regions, directing wave energy toward Peru. Southern Hemisphere events reach higher intensity, and show a recent wind strengthening, unlike the North Pacific.
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