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The El Ni\~no-Southern Oscillation (ENSO) is a fluctuation in sea surface temperature (SST) and pressure across the equatorial Pacific Ocean with a period of 2-7 years. As the largest mode of interannual variability on Earth, ENSO shapes…

Atmospheric and Oceanic Physics · Physics 2026-03-05 PJ Tuckman , Da Yang

The El Ni\~no phenomenon, synonymously El Ni\~no-Southern Oscillation (ENSO), is an anomalous climatic oscillation in the Equatorial Pacific that occurs once every 3-8 years. It affects the earth's climate on a global scale. Whether it is a…

Chaotic Dynamics · Physics 2007-05-23 Debabrata Panja , Gerrit Burgers

We begin by providing observational evidence that the probability of encountering very high and very low annual tropical rainfall has increased significantly in the recent decade (1998-present) as compared to the preceding warming era…

Atmospheric and Oceanic Physics · Physics 2016-04-15 Jai Sukhatme , V. Venugopal

In this study we used the sea surface temperature (SST), El-Nino southern oscillation (ENSO) and Pacific decadal oscillation (PDO) time-series for the time period 1900-2012 in order to investigate plausible manifestation of sharp increases…

Atmospheric and Oceanic Physics · Physics 2013-03-08 Belolipetsky P. V. , Bartsev S. I. , Degermendzhi A. G. , Huang-Hsiung Hsu , Varotsos C. A.

The El Ni\~no Southern Oscillation (ENSO) is the dominant driver of interannual global climate variability and can lead to extreme weather events such as droughts or flooding. Recently, we have developed several statistical approaches for…

Atmospheric and Oceanic Physics · Physics 2026-02-17 Josef Ludescher , Jun Meng , Jingfang Fan , Armin Bunde , Hans Joachim Schellnhuber

The El Ni\~no Southern Oscillation (ENSO) is the most important driver of interannual global climate variability and can trigger extreme weather events and disasters in various parts of the globe. Depending on the region of maximal warming,…

Atmospheric and Oceanic Physics · Physics 2022-12-29 J. Ludescher , A. Bunde , H. J. Schellnhuber

The El Nino Southern Oscillation (ENSO) is one of the most prominent interannual climate phenomena. An early and reliable ENSO forecasting remains a crucial goal, due to its serious implications for economy, society, and ecosystem. Despite…

Atmospheric and Oceanic Physics · Physics 2020-01-15 Jun Meng , Jingfang Fan , Josef Ludescher , Agarwal Ankit , Xiaosong Chen , Armin Bunde , Jurgen Kurths , Hans Joachim Schellnhuber

Satellite and ground-based observations are used to explore the composite oceanic - atmospheric link known as the El Ni\~no/La Ni\~na Southern Oscillation (ENSO) phenomenon, which is closely associated with extreme weather events (e.g. heat…

Atmospheric and Oceanic Physics · Physics 2017-08-22 Costas A. Varotsos , Arthur P. Cracknell

El Ni\~no-Southern Oscillation (ENSO) is the most prominent interannual climate variability in the tropics and exhibits diverse features in spatiotemporal patterns. In this paper, a simple multiscale intermediate coupled stochastic model is…

Atmospheric and Oceanic Physics · Physics 2022-06-15 Nan Chen , Xianghui Fang

El Ni\~no-Southern Oscillation (ENSO) exhibits diverse characteristics in spatial pattern, peak intensity, and temporal evolution. Here we develop a three-region multiscale stochastic model to show that the observed ENSO complexity can be…

Atmospheric and Oceanic Physics · Physics 2021-04-16 Nan Chen , Xianghui Fang , Jin-Yi Yu

The El Nino-Southern Oscillation (ENSO) is one of the most important phenomena in climate. By studying the fluctuations of surface air temperature within one year between 1979-01-01 and 2016-12-31 of the region (30S-30N, 0E-360E) with…

Atmospheric and Oceanic Physics · Physics 2020-03-31 Yongwen Zhang , Jingfang Fan , Xiaoteng Li , Wenqi Liu , Xiaosong Chen

The El Ni\~no-Southern Oscillation (ENSO) is a mode of interannual variability in the coupled equatorial ocean/atmosphere Pacific. El Ni\~no describes a state in which sea surface temperatures in the eastern Pacific increase and upwelling…

Atmospheric and Oceanic Physics · Physics 2016-07-12 John Guckenheimer , Andrew Roberts , Axel Timmermann , Henk Dijkstra

The El Ni\~no-Southern Oscillation (ENSO) is a mode of interannual variability in the coupled equatorial Pacific coupled atmosphere/ocean system. El Ni\~no describes a state in which sea surface temperatures in the eastern Pacific increase…

Dynamical Systems · Mathematics 2017-10-10 John Guckenheimer , Axel Timmermann , Henk Dijkstra , Andrew Roberts

El Ni\~no Southern Oscillation (ENSO) diversity is characterized based on the longitudinal location of maximum sea surface temperature anomalies (SSTA) and amplitude in the tropical Pacific, as Central Pacific (CP) events are typically…

Atmospheric and Oceanic Physics · Physics 2024-05-15 Jakob Schlör , Felix Strnad , Antonietta Capotondi , Bedartha Goswami

The effects of El Ni\~no's two distinct flavors, East Pacific (EP) and Central Pacific (CP)/Modoki El Ni\~no, on global climate variability have been studied intensively in recent years. Most of these studies have made use of linear…

Atmospheric and Oceanic Physics · Physics 2021-01-11 Marc Wiedermann , Jonatan F. Siegmund , Jonathan F. Donges , Reik V. Donner

We analyse the transitions between established phases of the El Ni\~no Southern Oscillation (ENSO) by surveying the daily data of the Southern Oscillation Index from an entropic viewpoint using the framework of stochastic Statistical…

Statistical Mechanics · Physics 2025-07-15 Sílvio M. Duarte Queirós

The skill of the statistical as well as physics-based coupled climate models in predicting the El Ni\~no-Southern Oscillation (ENSO) is limited by their inability to represent the observed ENSO nonlinearity. A promising alternative, namely…

Atmospheric and Oceanic Physics · Physics 2017-09-11 Shivsai Ajit Dixit , B N Goswami

Tropical cyclones (TCs), including hurricanes and typhoons, cause significant property damage and result in fatalities, making it crucial to understand the factors driving extreme TCs. The El Nino Southern Oscillation (ENSO) influences TC…

Atmospheric and Oceanic Physics · Physics 2024-10-10 Suchit Basineni

The El Ni\~no Southern Oscillation (ENSO) is a semi-periodic fluctuation in sea surface temperature (SST) over the tropical central and eastern Pacific Ocean that influences interannual variability in regional hydrology across the world…

Atmospheric and Oceanic Physics · Physics 2023-01-24 Yumin Liu , Kate Duffy , Jennifer G. Dy , Auroop R. Ganguly

The El Ni\~no Southern Oscillation (ENSO) is the strongest driver of interannual global climate variability and can lead to extreme weather events like droughts and flooding. Additionally, ENSO influences the mean global temperature with…

Atmospheric and Oceanic Physics · Physics 2025-02-04 J. Ludescher , J. Meng , J. Fan , A. Bunde , H. J. Schellnhuber
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