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SMOS salinity could offer early indicator of El Niño

Science · en

SMOS salinity could offer early indicator of El Niño

European Space Agency · Official source · Jul 30, 2026, 7:20 AM UTC

As the Pacific Ocean moves into an El Niño phase, scientists are monitoring changes in sea-surface temperature, but also sea-surface salinity – which is another key indicator of this phenomenon. Measurements from satellites such as the European Space Agency's SMOS mission are revealing how freshwater and salt patterns shift across the Pacific as this…