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Title: EL NIŅO
Caption: (a) Normal conditions. Under normal conditions, winds blow warm surface water in the Pacific Ocean west toward Indonesia. This water movement allows colder ocean water to rise, or upwell, along the northwestern coast of South America and reduces rainfall close to South America. (Modified after National Oceanic and Atmospheric Administration/ PMEL/TAO at http://www.elnino.noaa.gov/.)
Keywords: atmosphere, climates, climatology, trade winds, oceans, surface currents, equatorial currents, Peruvian current, El Nino, Southern Oscillation