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El Niño & La Niña

El Niño & La Niña. Presented by: Eric Fabbro, Philip Orlando and Jonathan Maini. What Causes El Niño & La Niña?. El Niño is the disruption of the ocean atmosphere in the Tropical Pacific causing important consequences for weather around the globe.

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El Niño & La Niña

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  1. El Niño & La Niña Presented by: Eric Fabbro, Philip Orlando and Jonathan Maini.

  2. What Causes El Niño & La Niña? • El Niño is the disruption of the ocean atmosphere in the Tropical Pacific causing important consequences for weather around the globe. • La Niña is known for it’s unusually cold ocean temperatures in the Equatorial Pacific. Unlike El Niño that is known for it’s warm ocean temperatures in the Equatorial Pacific. • Among these many consequences are increased rainfall across the southern United States and in Peru. • Also included are devastating droughts in the West Pacific which are the cause of many brush fires in Australia.

  3. What Causes El Niño & La Niña (Continued). • In normal non El Niño conditions the trade winds blow across the Tropical Pacific towards the west. • These winds pile up warm surface water in the west Pacific. • During El Niño the trade winds in the Tropical Pacific tend to relax in the central and western Pacific. This leads to the lowering of the thermo cline in the eastern Pacific and a highering of thermo cline in the west. • Thermo cline is the separation of different regions having different temperatures in large bodies of water.

  4. When does El Niño & La Niña Occur? • El Niño and La Niña are said to occur in December somewhere around Christmas time. • No one yet actually knows when it occurs. So far they only know that these weather systems just happen. • Although scientists do know that El Niño and La Niña do happen every 3 to 7 years.

  5. El Niño & La Niña In The World • El Niño and La Niña is not a weather system that affects only one area. They both affect the whole world. • But there is one place that is affected more than any other in the world and that is the Tropics.

  6. El Niño & La Niña in Our Area • El Niño and La Niña affect our area a lot. An example of this is about four years ago the United States had one of the warmest winters ever and was followed by one of the wettest springs ever.

  7. Recent El Niño’s La Niña’s • The most recent El Niño and La Niña events in the world are: 1991-1992 1997-1998

  8. The Destruction of El Niño & La Niña • El Niño and La Niña themselves cannot create any destruction, but El Niño causing warmer conditions can create hurricanes, thunderstorms, floods and so on. • La Niña on the other hand creates snow and ice storms that can destroy many things.

  9. How Often El Niño & La Niña Occur • Like we said before El Niño and La Niña occur every 3 to 7 years.

  10. What produces El Niño & La Niña? • As we mentioned El Niño is caused by the distruption of of the ocean atmosphere in the Tropical Pacific.

  11. Exciting facts about El Niño & La Niña!!! • El Niño is spanish for “The Little Boy”. • La Niña is spanish for “The Little Girl”. • El Niño was originally discovered by a fisherman off the coast of South America. • La Niña is known as the anti-El Niño. It is also called El Viejo which means “The Old Man”.

  12. The End APPLAUSE

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