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[INTERNATIONAL] · United States · 8 sources

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Part of situation: Pacific Kelvin waves and West Coast sea level rise (4 clusters)

California coastline faces sea level rise from Kelvin wave

Kelvin wave El Niño sea level rise coastal erosion California coastline

California's coastline is bracing for a significant rise in sea levels, with scientists predicting waters could surge by as much as one foot. This phenomenon is driven by a Kelvin wave, also known as a coastal trapped wave, which is a massive, sustained bulge of warm seawater linked to El Niño conditions.

Unlike typical waves that crash on the shore, a Kelvin wave swells the tides from beneath the surface, potentially raising ocean levels across a zone extending 12 to 18 miles offshore. This surge arrives as California's coast is already vulnerable due to recent storms, high ocean temperatures, and ongoing erosion.

Experts warn that the convergence of these factors could intensify coastal flooding and beach erosion. Oceanographer Dillon Amaya noted that every two to four inches of sea level rise can essentially double the risk of flooding. The wave is expected to move toward the San Francisco Bay Area and eventually toward Alaska.

Entities

California · Dillon Amaya · National Marine Fisheries Service · Scripps Institute of Oceanography · US Geological Survey

Claims

What the coverage asserts, and how many sources carry each claim.

Sources

Freak ocean phenomenon takes hold of California coast with seas surging [offthepress.com]
El Niño-Driven Ocean Waves Cause California Sea Levels to Rise [internewscast.com]
California Rushes To Prepare For Massive 'Kelvin' Wave, Predicted Sea Level Rise - Slashdot [news.slashdot.org]
A pulse of warm water hitting the Pacific coast could mean erosion and flooding [wtop.com]
What to know about the Kelvin wave raising the sea level along the West Coast [www.newsday.com]
A pulse of warm water hitting the Pacific coast could mean erosion and flooding [www.bangordailynews.com]
A pulse of warm water hitting the Pacific coast could mean erosion and flooding [www.independent.co.uk]
Freak ocean phenomenon takes hold of California coast with seas surging [nypost.com]