String of Marine Heatwaves Continues to Dominate Northeast Pacific

During the summer of 2020, an area of unusually warm ocean water—a marine heatwave—grew off the West Coast of the United States. It became the second most expansive Northeast Pacific heatwave since monitoring began in 1982. The heatwave eventually encompassed about 9.1 million square kilometers, almost six times the size of Alaska, towards the end of September.

Frontiers Regional Structure in the Marine Heat Wave of Summer

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Predictability of Northwest Pacific marine heatwaves in summer

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BG - Ecosystem impacts of marine heat waves in the northeast Pacific

Frontiers Marine Heatwaves and Their Depth Structures on the

A Persistent and Intense Marine Heatwave in the Northeast Pacific

An oceanic heatwave is now spreading across the North Pacific

Pause tied to equatorial Pacific surface cooling