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The El Niño–Southern Oscillation is a single climate phenomenon that quasi-periodically fluctuates between three phases: Neutral, La Niña or El Niño. [12] La Niña and El Niño are opposite phases which require certain changes to take place in both the ocean and the atmosphere before an event is declared. [12]
Fall is in full swing, but it’s not too soon to look ahead to winter, especially one that could feel considerably different than last year’s dominated by El Niño. A weak La Niña is expected ...
How do El Niño and La Niña differ? A La Niña happens when the Trade Winds are abnormally strong, sending warm water from off of South America, in the eastern Pacific, toward Asia and Australia ...
La Niña is considered the cool phase of the El Niño-Southern Oscillation (ENSO) and is characterized by lower-than-average sea-surface temperatures, with anomalies of at least -0.5 degrees ...
Weakening sea surface temperature anomalies in the tropical Pacific in early 2023 associated with the end of the La Niña event. The 2020–2023 La Niña event was unusual in that it featured three consecutive years of La Niña conditions (also called a "triple-dip" La Niña) in contrast to the typical 9–12 month cycles of the El Niño–Southern Oscillation (ENSO), [3] though the magnitude ...
El Niño is a natural climate event caused by the Southern Oscillation, popularly known as El Niño or also in meteorological circles as El Niño-Southern Oscillation or ENSO, [6] through which global warming of the eastern equatorial Pacific Ocean results in the development of unusually warm waters between the coast of South America and the ...
The third state is El Niño, which occurs when sea surface temperatures in the tropical Pacific rise to above-normal levels for an extended period of time. El Niño, Spanish for "little boy," was ...
The first attempts to model ENSO were made by Bjerknes in 1969, [6] who understood that ENSO is the result of an ocean-atmosphere interaction (Bjerknes feedback).In 1975 an important step in ENSO comprehension was made by Wyrtki, [7] who improved the Bjerknes model realising that the warm water build-up in the western Pacific is due to a strengthening in the trade winds, and that an El Niño ...