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nASA has a unique three-dimensional view

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of the 2015 El Nino a combination of

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ocean measurements and cutting-edge

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supercomputer simulations an El Nino

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occurs when the equatorial Pacific Ocean

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is warmer than normal

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shown here in red focus on the top 225

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meters of the ocean the vertical height

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is exaggerated in this view to better

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show the distribution of temperature

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changes the 2015 El Nino peaked in

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December and by April of 2016 the ocean

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had transitioned back to normal

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temperatures changing winds drive an El

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Nino event pushing warm waters from

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Indonesia over to the Americas the

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yellow arrows shows strong eastward

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currents which are dominant during an El

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Nino the white arrows show the West

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flown currents which returned as El Nino

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fades away this data set has helped

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scientists at NASA improve forecasts of

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future El Nino events and their global