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2023–2024 El Niño Event
The 2023–2024 El Niño was regarded as the fourth-most powerful El Niño–Southern Oscillation event in recorded history, resulting in widespread droughts, flooding and other natural disasters across the globe. The onset was declared on 4 July 2023 by the World Meteorological Organization (WMO) It was estimated that the most significant meteorological effects would occur between November 2023 and April 2024 and their characteristics would be determined depending on each territory on the planet, within which droughts, heavy rains, wildfires, heat waves, tropical cyclones, flooding and changes in wind patterns occurred. These events have already negatively affected the economic activities of agriculture and fishing, generating shortages and rising prices of food—especially rice, palm oil, sugar cane, soybeans and corn—and, therefore, an increase in food insecurity of the most vulnerable populations. Background El Niño is a natural climate event caused by the Southern Oscill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Niño–Southern Oscillation
El Niño–Southern Oscillation (ENSO) is an irregular periodic variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean, affecting the climate of much of the tropics and subtropics. The warming phase of the sea temperature is known as ''El Niño'' and the cooling phase as ''La Niña''. The ''Southern Oscillation'' is the accompanying atmospheric component, coupled with the sea temperature change: ''El Niño'' is accompanied by high air surface pressure in the tropical western Pacific and ''La Niña'' with low air surface pressure there. The two periods last several months each and typically occur every few years with varying intensity per period. The two phases relate to the Walker circulation, which was discovered by Gilbert Walker during the early twentieth century. The Walker circulation is caused by the pressure gradient force that results from a high-pressure area over the eastern Pacific Ocean, and a low-pressure system over Indonesia. Weak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
