Chiodi, Andrew M. NOAA Pacific Marine Environmental Laboratory, University of Washington, Seattle, Washington.
Last reviewed:October 2020
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- Basic state of the tropical Pacific
- El Niño event development
- Life cycle
- Related Primary Literature
- Additional Reading
A disruption of the usual tropical Pacific Ocean and atmospheric circulation patterns that includes a few seasons of warmer-than-normal sea-surface temperatures in the central and eastern equatorial Pacific Ocean, weaker mid-Pacific trade winds, and eastward displacement of the cumulus cloudiness normally concentrated over the islands between the tropical Pacific and Indian Oceans; the warm phase of the El Niño–Southern Oscillation phenomenon.
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