El Niño-Southern Oscillation phenomenon

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This is a complex interaction between the tropical Pacific Ocean and the global atmosphere that causes irregularly occurring episodes of altered ocean and weather patterns in many parts of the world, often with long-term consequences such as altered marine habitats, rainfall changes, droughts, floods, and storm pattern changes.

The El Niño part of the El Niño-Southern Oscillation (ENSO) phenomenon refers to well above-average ocean temperatures along the coasts of Ecuador, Peru, and northern Chile, as well as across the eastern equatorial Pacific Ocean, whereas the La Niña part refers to well below-average ocean temperatures. The Southern Oscillation is a term used to describe the changes in worldwide air pressure patterns that occur as a result of changing weather patterns.

References

  • HG (2020, February 22). Common Terminologies (A-z) Of Disaster Risk Reduction & Management. Humanitarian Global. Retrieved December 6, 2023, from Link

 

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