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Kelvin Wave Renews El Niño
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Published March 21, 2010
A trio of globes of sea surface height anomalies shows a deep pulse of warm water—a Kelvin wave—crossing the Pacific Ocean in February 2010. Kelvin waves strengthen and maintain El Niño episodes.
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El Nino Resurging in November 2009
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Published November 19, 2009
A wave of warm water pooling in the central and eastern Pacific appears as a large area of higher-than-normal sea surface heights in this image from early November.
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