El Niño and La Niña Phenomena - Research Article from World of Earth Science

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El NiÑo and La NiÑa Phenomena

El Niño and La Niña are the names given to changes in the winds, atmospheric pressure, and seawater that occur in the Pacific Ocean near the equator. El Niño and La Niña are opposite phases of a back and forth cycle in the Pacific Ocean and the atmosphere above it. Unlike winter and summer, however, El Niño and La Niña do not change with the regularity of the seasons; instead, they repeat on average about every three or four years. They are the extremes in a vast repeating cycle called the Southern Oscillation, El Niño being the warm extreme and La Niña...

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This section contains 2,025 words
(approx. 7 pages at 300 words per page)
Buy the El Niño and La Niña Phenomena Encyclopedia Article
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El Niño and La Niña Phenomena from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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