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El Niño and La Niña are two phases of the naturally occurring climate phenomenon called the El Niño–Southern Oscillation (ENSO), which leads to the most dramatic year-to-year variation of Earth’s climate. The relationship between climate change and stronger El Niño is a topic of ongoing scientific research.
Oceanic Niño Index (ONI) The ONI is based on SST departures from average in the Niño 3.4 region, and is a principal measure for monitoring, assessing, and predicting ENSO. Defined as the three-month running-mean SST departures in the Niño 3.4 region. Departures are based on a set of improved homogeneous historical SST analyses (Extended ...
The El Niño Southern Oscillation (ENSO) phenomenon contributes significantly to seasonal climate fluctuations in many regions of the globe, often with social and economic implications for human populations and the environment. This site provides details of the current forecast status of ENSO conditions, as well as background information on ...
8 de jun. de 2023 · El Niño is officially here, and that means things are about to get even hotter. The natural climate phenomenon is marked by warmer ocean temperatures in the equatorial Pacific, which drives ...
5 de mar. de 2024 · The WMO El Niño/La Niña Update is prepared approximately every three months through a collaborative effort between WMO ... It is based on contributions from the leading centres around the world monitoring and predicting this phenomenon and expert consensus facilitated by WMO and IRI. More on El Niño / La Niña topic. Monitoring ...
El Niño is a climatic phenomenon named by Peruvian fishermen who noticed a warm current occurring around Christmas time (hence its name El Niño, "the child"). It is a complex climatic phenomenon that occurs irregularly in the tropical Pacific Ocean. It is characterized by an abnormal increase in the sea surface temperature, leading to ...
6 de may. de 2024 · El Niño is a condition that sometimes occurs in the Pacific Ocean, but it is so big that it affects weather all over the world. Weather depends a lot on ocean temperatures. Where the ocean is warm, more clouds form, and more rain falls in that part of the world. In the Pacific Ocean, near the equator, the Sun makes the water especially warm on ...
