How do changes in sea surface temperatures contribute to the identification of El Niño and La Niña events?*1 pointA) El Niño is characterized by cooler ocean temperatures, while La Niña has warmer temperatures.B) El Niño and La Niña both result in increased sea surface temperatures.C) Warmer ocean temperatures are associated with El Niño, while cooler temperatures indicate La Niña.D) Sea surface temperatures do not play a role in identifying these phenomena.
Question
How do changes in sea surface temperatures contribute to the identification of El Niño and La Niña events?*1 pointA) El Niño is characterized by cooler ocean temperatures, while La Niña has warmer temperatures.B) El Niño and La Niña both result in increased sea surface temperatures.C) Warmer ocean temperatures are associated with El Niño, while cooler temperatures indicate La Niña.D) Sea surface temperatures do not play a role in identifying these phenomena.
Solution
C) Warmer ocean temperatures are associated with El Niño, while cooler temperatures indicate La Niña.
El Niño and La Niña are part of a climate pattern known as the El Niño-Southern Oscillation (ENSO) cycle. This cycle involves fluctuations in temperature between the ocean and atmosphere in the east-central Equatorial Pacific.
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El Niño is characterized by unusually warm ocean temperatures in the Equatorial Pacific. This is due to a weakening of the trade winds which usually push warmer surface waters towards the western Pacific. When these winds weaken, the warm water stays in the eastern Pacific. This increase in sea surface temperature can lead to significant impacts on weather patterns around the world.
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La Niña, on the other hand, is characterized by unusually cold ocean temperatures in the Equatorial Pacific. This is due to an intensification of the normal trade winds, pushing more warm water towards the western Pacific and allowing colder water from below to upwell in the east. This decrease in sea surface temperature also has significant global weather impacts.
Therefore, monitoring changes in sea surface temperatures is crucial for identifying and predicting El Niño and La Niña events.
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