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El Niño Index Dashboard. ENSO is a phenomenon which extends over large spatial area and can have a different seasonal evolution from event to event. ... Tropical Pacific integrated temperature anomalies (0-300m) 160°E-–0°W. Calculated at NOAA/CPC from the GODAS dataset. -0.50 (C) Mar 2024
8 de jun. de 2023 · The monthly Niño-3.4 index, which tracks the temperature of the surface of the tropical Pacific ocean, was 0.5 °Celsius (0.9 ˚Fahrenheit) above the long-term average (long-term = 1991–2020), according to the OISSTv2.1 monthly dataset. 0.5 °C is the threshold for El Niño, so… check!The warm-up following our recent La Niña has been pretty remarkable.
12 de oct. de 2023 · El Niño is currently purring along in the tropical Pacific. Forecasters expect El Niño will continue through the spring, with a 75-85% chance it will become a strong event. A stronger El Niño—definition to follow shortly—means it is more likely that we will see El Niño’s expected thumbprint on winter temperature and rain/snow patterns around the world.
1 de jul. de 2015 · El Niño and La Niña are opposite extremes of the ENSO, which refers to cyclical environmental conditions that occur across the Equatorial Pacific Ocean. These changes are due to natural interactions between the ocean and atmosphere. Sea surface temperature, rainfall, air pressure, atmospheric and ocean circulation all influence each other.
La Niña is characterized by unusually cold ocean temperatures (blue) along the equator in the eastern and central equatorial Pacific Ocean (below). Credits The above graphics show monthly sea surface temperature in the equatorial Pacific(20ºN-20ºS, 100ºE-60ºW), provided by the TAO project and created by Dai McClurg.
After sea surface temperatures in the central tropical Pacific Ocean came close to El Niño levels in 2014, the central tropical Pacific Ocean was primed for El Niño in 2015. Westerly wind events in January and March led to rapid ocean warming during autumn 2015, reaching El Niño levels during mid-April.
16 de ene. de 2023 · The return of the El Niño climate phenomenon later this year will cause global temperatures to rise “off the chart” and deliver unprecedented heatwaves, scientists have warned.
