The complete El Niño cycle can be seen in the animation (2.7 MB) ofTOPEX/Poseidon sea level anomalies shown above. Notice the eastwardlytraveling Kelvin waves at the beginning of 1997, and the evolution of theanomalous warm pool in the eastern Pacific. Also, notice how in early 1998, sea-level has begun to fall in the east and one can begin to see the westward movement north and south of the equator as Rossby waves begin to develop.

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Last Modified: Sat, Jul 3, 1998
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