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El Niño, La Ni ñ a: It Changes Our World

El Niño, La Ni ñ a: It Changes Our World. Keyli Hill Science Mr. Shepard La Niña El Niño 5-14-12, satellite image, http://library.thinkquest.org/5818/elnino.html. El Ni ñ o. Rain and flooding on the pacific coast. Warm water disrupts the food chain of fish, birds and sea mammals.

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El Niño, La Ni ñ a: It Changes Our World

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  1. El Niño, La Niña: It Changes Our World Keyli Hill Science Mr. Shepard La NiñaEl Niño 5-14-12, satellite image, http://library.thinkquest.org/5818/elnino.html

  2. El Niño • Rain and flooding on the pacific coast. • Warm water disrupts the food chain of fish, birds and sea mammals. • Tornadoes and thunderstorms are more numerous in the southern United States. • Less than normal hurricanes occur in the Atlantic ocean. Thinkquest, 5-10-12, http://library.thinkquest.org/5818/elnino.html

  3. La Niña • Snow and rain is more numerous on the west coast. • Unusually cold weather in Alaska • Unusually warm weather in the rest of the United States. • Droughts occur in the south-west. • Higher than normal amount of hurricanes in the Atlantic ocean. Thinkquest, 5-10-12, http://library.thinkquest.org/5818/elnino.html

  4. Conditions That Cause El Niño And La Niña • El Niño and La Niña are climate cycles so they are annual. • But it is also the result from the ocean and the tropical part of the atmosphere interacting Noaa.gov,5-11-12, http://www.research.noaa.gov/climate/t_elnino.html, http://www.elnino.noaa.gov/lanina_new_faq.html

  5. How Long They Last • Usually about 9-12 months • Sometimes though, they can last up to 2 years Noaa.org, 5-11-12, http://www.elnino.noaa.gov/lanina_new_faq.html

  6. When In Time • On average it is every 3 to 5 years • But in past records it has varied from 2 to 7 years. Noaa.gov,5-14-12, -http://www.elnino.noaa.gov/lanina_new_faq.html

  7. So Much Damage! • Most floods, landslides and forest fires are caused by El Niño and La Niña. • El Niño is linked to increased precipitation and that is why there are floods. • For example in downtown San Francisco the normal amount of precipitation is 250 mm of rain but during an El Niño on average it is 996 mm. • If it was a big enough land slide like it was in San Mateo it can cost up to $55,000,000.00! Usgs.gov, 5-11-12, http://pubs.usgs.gov/mf/1999/mf-2325/

  8. Interesting Facts! • El Niño means “little boy” because it was named after Jesus because it usually stars around Christmas time • La Niña means “little girl”. It can also be called El Viejo meaning “old man” • It is the most powerful phenomenon on the Earth. It changes the climate of about half of the Earth Thinkquest, 5-10-12, none, http://library.thinkquest.org/5818/elnino.html

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