El Nino & La Nina

El Nino & La Nina - MARS 1010- Outline El Nio Reading...

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MARS 1010- Outline El Niño Reading Assignment: Chapter 7 in World’s Ocean, 9 th edition, Sverdrup and Armbrust 1. What is the El Niño - Southern Oscillation? El Nino refers to a period of anomalous climatic conditions centered in the tropical Pacific Ocean. The oscillation of atmospheric conditions within the Pacific and Indian Oceans that results in El Nino (Christ Child) and La Nina (Girl Child). 2. What happens during El Niño? Warmer than normal water in the eastern tropical Pacific that extends to deep depths Heavy rains in equatorial South America and western North America Droughts and fires in equatorial Asia and Australia a. What atmospheric changes occur? Atmospheric changes occur in the Southern Pacific and Indian Ocean every 2-7 years. b. What oceanographic changes occur? Warmer than normal water in the eastern tropical Pacific that extends to deep depths o Heavy rains in equatorial south America o Dry conditions in equatorial Asia c. How often does it happen? 2-7 years, lasts about a year, but maybe even 18 months.
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El Nino & La Nina - MARS 1010- Outline El Nio Reading...

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