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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

The Earth's climate system is a classical example of a multiscale, multiphysics dynamical system with an extremely large number of active degrees of freedom, exhibiting variability on scales ranging from micrometers and seconds in cloud…

Atmospheric and Oceanic Physics · Physics 2022-01-19 Gary Froyland , Dimitrios Giannakis , Benjamin Lintner , Maxwell Pike , Joanna Slawinska

Different to classical theories which emphasize east--west feedback along the equator, data analyses via the extreme-point symmetric mode decomposition (ESMD) method support a new viewpoint that the El Ni\~{n}o--Southern Oscillation (ENSO)…

Atmospheric and Oceanic Physics · Physics 2019-12-05 Jin-Liang Wang

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

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. Recently, we have developed two approaches…

Atmospheric and Oceanic Physics · Physics 2022-03-31 Josef Ludescher , Jun Meng , Jingfang Fan

El Ni\~no-Southern Oscillation (ENSO) is a prominent mode of interannual climate variability with far-reaching global impacts. Its evolution is governed by intricate air-sea interactions, posing significant challenges for long-term…

Forecasting the El Nino-Southern Oscillation (ENSO) has been a subject of vigorous research due to the important role of the phenomenon in climate dynamics and its worldwide socioeconomic impacts. Over the past decades, numerous models for…

Atmospheric and Oceanic Physics · Physics 2019-12-12 Xinyang Wang , Joanna Slawinska , Dimitrios Giannakis

Westerly wind bursts (WWBs) have long been known to have a major impact on the development of El Ni\~no events. In particular, they amplify these events, with stronger events associated with a higher number of WWBs. We further find…

Atmospheric and Oceanic Physics · Physics 2025-12-30 Georg A. Gottwald , Eli Tziperman , Alexey Fedorov

The impact of the El Ni\~no-Southern Oscillation (ENSO) on the extratropics is investigated in an idealized, reduced-order model that has a tropical and an extratropical module. Unidirectional ENSO forcing is used to mimick the atmospheric…

Atmospheric and Oceanic Physics · Physics 2021-07-07 Stéphane Vannitsem , Jonathan Demaeyer , Michael Ghil

The El Ni{~n}o-Southern Oscillation (ENSO) exerts profound influence on global climate variability, yet its prediction remains a grand challenge. Recent advances in deep learning have significantly improved forecasting skill, but the…

Machine Learning · Computer Science 2026-01-06 Yanhai Gan , Yipeng Chen , Ning Li , Xingguo Liu , Junyu Dong , Xianyao Chen

Understanding the interactions between the El Nino-Southern Oscillation (ENSO) and the Madden-Julian Oscillation (MJO) is essential to studying climate variabilities and predicting extreme weather events. Here, we develop a stochastic…

Atmospheric and Oceanic Physics · Physics 2024-11-11 Charlotte Moser , Nan Chen , Yinling Zhang

This is the last part of four series papers, aiming at stabilization for signal-input-signaloutput (SISO) linear finite-dimensional systems corrupted by general input disturbances. A new observer, referred to as Extended Dynamics Observer…

Systems and Control · Electrical Eng. & Systems 2020-11-13 Hongyinping Feng , Bao-Zhu Guo

We introduce MENO (''Matrix Exponential-based Neural Operator''), a hybrid surrogate modeling framework for efficiently solving stiff systems of ordinary differential equations (ODEs) that exhibit a sparse nonlinear structure. In such…

Computational Physics · Physics 2025-07-22 Ivan Zanardi , Simone Venturi , Marco Panesi

Self-sustained oscillators are ubiquitous and essential for metrology, communications, time reference, and geolocation. In its most basic form an oscillator consists of a resonator driven on-resonance, through feedback, to create a periodic…

Mesoscale and Nanoscale Physics · Physics 2013-05-21 L. G. Villanueva , E. Kenig , R. B. Karabalin , M. H. Matheny , R. Lifshitz , M. C. Cross , M. L. Roukes

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

In this article, we present a mathematical theory of the Walker circulation of the large-scale atmosphere over the tropics. This study leads to a new metastable state oscillation theory for the El Nino Southern Oscillation (ENSO), a typical…

Mathematical Physics · Physics 2010-05-14 Tian Ma , Shouhong Wang

The relation between El Ni\~{n}o-Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO) perplexes the researchers. Probably, this is due to the default choice on empirical orthogonal function (EOF) method whose outputs are merely…

Atmospheric and Oceanic Physics · Physics 2019-12-05 Jin-Liang Wang

The El Ni\~no Southern Oscillation (ENSO) is the most important driver of climate variability and can trigger extreme weather events and disasters in various parts of the globe. Recently we have developed a network approach, which allows…

Atmospheric and Oceanic Physics · Physics 2020-02-19 Josef Ludescher , Armin Bunde , Shlomo Havlin , Hans Joachim Schellnhuber

The El Ni\~no Southern Oscillation (ENSO) is the strongest driver of year-to-year variations of the global climate and can lead to extreme weather conditions and disasters in various regions around the world. Here, we review two different…

Atmospheric and Oceanic Physics · Physics 2023-01-26 J. Ludescher , J. Meng , J. Fan , A. Bunde , H. J. Schellnhuber

Arnold's standard circle maps are widely used to study the quasi-periodic route to chaos and other phenomena associated with nonlinear dynamics in the presence of two rationally unrelated periodicities. In particular, the El Nino-Southern…

Dynamical Systems · Mathematics 2020-01-27 L. Marangio , J. Sedro , S. Galatolo , A. Di Garbo , M. Ghil