Ocean Salinity Patterns Can Amplify El Nino Intensity by 20 Percent, Study Finds
Using publicly available ocean data spanning 65 years and climate model experiments, Duke University researchers found that specific salinity patterns in the western Pacific can increase El Nino intensity by about 20% and make extreme events twice as likely. Fresher water at the equator combined with saltier water farther away drives eastward currents that push warm surface water east, feeding El Nino development - a mechanism overlooked in existing forecasting models.