Pacific Ocean

El Niño Southern Oscillation - ENSO

Better knowledge of ocean circulation is enabling us to better understand and predict climate, especially natural catastrophes such as El Niño. This phenomenon, caused by anomalous warm water arrivals on the coast of Peru, brings severe weather patterns, such as drought, flooding, and cyclones. It is now possible to predict El Niño from ocean data.

ENSO 1997

Monthly mean of Sea Level Anomalies (in cm) over the Ocean Pacific as computed for the El Niño indicator (annual and seasonnal cycles removed). Download enlarged images from the Gallery. Credits CNES/EU Copernicus Marine Service.

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