CLIMATE OF INDIA
EL NINO AND SOUTHERN OSCILLATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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El Nino
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La Nina
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Normal
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Partly sunny
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Detailed explanation-1: -During La Nina events, trade winds are even stronger than usual, pushing more warm water toward Asia. Off the west coast of the Americas, upwelling increases, bringing cold, nutrient-rich water to the surface. These cold waters in the Pacific push the jet stream northward.
Detailed explanation-2: -When the trade winds are stronger than normal during La Niña, the winds push more surface water to the western half of the Pacific basin. The pool of warm water grows deeper, storing excess heat at depth, and allowing for colder, deeper water to rise to the surface in the eastern half of the Pacific basin.
Detailed explanation-3: -During an El Niño event, the easterly trade winds converging across the equatorial Pacific weaken.