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Understanding El Niño and La Niña

Understanding El Niño and La Niña. Normal conditions: upwelling off the coast of Peru, warm water “piled up” in the Western Pacific. Strong upwelling. Normal conditions: upwelling off the coast of Peru, warm water “piled up” in the Western Pacific. Normal conditions.

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Understanding El Niño and La Niña

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  1. Understanding El Niño and La Niña

  2. Normal conditions: upwelling off the coast of Peru, warm water “piled up” in the Western Pacific

  3. Strong upwelling

  4. Normal conditions: upwelling off the coast of Peru, warm water “piled up” in the Western Pacific

  5. Normal conditions

  6. El Niño conditions: surface current reversed, pushing warm water toward the Eastern Pacific Upwelling repressed  Unusually warm water across Equatorial Pacific

  7. El Niño conditions: surface current reversed, pushing warm water toward the Eastern Pacific Upwelling repressed  Unusually warm water across Equatorial Pacific

  8. La Niña: Stronger trade Winds than normal, causing a strong upwelling of cold water in the Eastern Pacific

  9. Developing La Niña after an El Niño

  10. Declared El Niño related disasters, 1998

  11. General: http://earthguide.ucsd.edu/virtualmuseum/climatechange1/11_1.shtml Health effects :https://apps.who.int/inf-fs/en/fact192.html Fisheries disruptions,,Seabirds, marine mammals: http://www.elnino.noaa.gov/impacts.html

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