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El Niño - “The Christ Child”

El Niño - “The Christ Child”. El Niño is a disruption of the ocean-atmosphere system in the tropical Pacific having important consequences for weather and climate around the globe. Normal Conditions. Wind blows from east to west (right to left) Pushes water to western Pacific

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El Niño - “The Christ Child”

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  1. El Niño - “The Christ Child” El Niño is a disruption of the ocean-atmosphere system in the tropical Pacific having important consequences for weather and climate around the globe.

  2. Normal Conditions • Wind blows from east to west (right to left) • Pushes water to western Pacific • Causes LOTS of rain (monsoons & snow in Himalaya Mts.) • Water flows along bottom & up at South America

  3. The Normal Pacific

  4. Normal Conditions

  5. Note the change in wind and ocean currents during El Niño

  6. El Niño

  7. El Niño

  8. Trade winds push warm ocean water west, cool water rises behind it Trade winds ease and switch directions, warmest water moves east

  9. Earth’s warmest ocean water in the far western Pacific energizes huge thunderstorms Warm water, thunderstorms move eastward Thunderstorms disrupt jet stream patterns

  10. Normal Ocean Thermocline

  11. El Niño Thermocline

  12. The Effects of El Niño

  13. El Niño Conditions • Water warms • Winds weaken • Upwelling stops • Climate changes • We do not know why this happens

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