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The emergence of oscillations in models of the El-Ni\~no effect is of utmost relevance. Here we investigate a coupled nonlinear delay differential system modeling theEl-Ni\~no/ Southern Oscillation (ENSO) phenomenon, which arises through…

大气与海洋物理 · 物理学 2017-05-24 Chandrakala Meena , Shweta Kumari , Akansha Sharma , Sudeshna Sinha

A spatiotemporal oscillator model for El Ni\~no/Southern Oscillation (ENSO) is constructed based on the sea surface temperature (SST) and thermocline depth dynamics. The model is enclosed by introducing a proportional relationship between…

大气与海洋物理 · 物理学 2023-06-08 Yaokun Li

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…

大气与海洋物理 · 物理学 2022-06-15 Nan Chen , Xianghui Fang

The main objective of this article is to establish a new mechanism of the El Nino Southern Oscillation (ENSO), as a self-organizing and self-excitation system, with two highly coupled processes. The first is the oscillation between the two…

大气与海洋物理 · 物理学 2010-05-14 Tian Ma , Shouhong Wang

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…

大气与海洋物理 · 物理学 2026-03-05 PJ Tuckman , Da Yang

We consider a highly idealized model for El Nino/Southern Oscillation (ENSO) variability, as introduced in an earlier paper. The model is governed by a delay differential equation for sea surface temperature in the Tropical Pacific, and it…

大气与海洋物理 · 物理学 2011-01-13 Ilya Zaliapin , Michael Ghil

Models of global climate phenomena of low to intermediate complexity are very useful for providing an understanding at a conceptual level. An important aspect of such models is the presence of a number of feedback loops that feature…

动力系统 · 数学 2015-02-02 Bernd Krauskopf , Jan Sieber

A non-autonomous stochastic dynamical model approach is developed to describe the seasonal to interannual variability of the El Ni\~no-Southern Oscillation (ENSO). We determine the model coefficients by systematic statistical estimations…

大气与海洋物理 · 物理学 2020-12-21 L. T. Giorgini , W. Moon , N. Chen , J. S. Wettlaufer

El Ni\~no-Southern Oscillation (ENSO) is the most predominant interannual variability in the tropics, significantly impacting global weather and climate. In this paper, a framework of low-order conceptual models for the ENSO is…

地球物理 · 物理学 2023-08-09 Nan Chen , Yinling Zhang

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…

大气与海洋物理 · 物理学 2017-09-11 Shivsai Ajit Dixit , B N Goswami

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…

大气与海洋物理 · 物理学 2017-08-22 Costas A. Varotsos , Arthur P. Cracknell

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…

混沌动力学 · 物理学 2007-05-23 Debabrata Panja , Gerrit Burgers

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…

动力系统 · 数学 2017-10-10 John Guckenheimer , Axel Timmermann , Henk Dijkstra , Andrew Roberts

We consider a delay differential equation (DDE) model for El-Nino Southern Oscillation (ENSO) variability. The model combines two key mechanisms that participate in ENSO dynamics: delayed negative feedback and seasonal forcing. We perform…

大气与海洋物理 · 物理学 2020-01-29 Michael Ghil , Ilya Zaliapin , Sylvester Thompson

We study the three-timescale dynamics of a model that describes the El Ni\~no Southern Oscillation (ENSO) phenomenon, which was proposed in [A. Roberts, J. Guckenheimer, E. Widiasih, A. Timmermann, and C. K. Jones, Mixed-mode oscillations…

动力系统 · 数学 2022-07-08 Panagiotis Kaklamanos , Nikola Popović

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…

大气与海洋物理 · 物理学 2021-04-16 Nan Chen , Xianghui Fang , Jin-Yi Yu

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…

大气与海洋物理 · 物理学 2016-07-12 John Guckenheimer , Andrew Roberts , Axel Timmermann , Henk Dijkstra

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…

大气与海洋物理 · 物理学 2024-05-15 Jakob Schlör , Felix Strnad , Antonietta Capotondi , Bedartha Goswami

Sea surface temperature (SST) variability plays a key role in the global weather and climate system, with phenomena such as El Ni\~{n}o-Southern Oscillation regarded as a major source of interannual climate variability at the global scale.…

大气与海洋物理 · 物理学 2022-02-22 John Taylor , Ming Feng

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…

大气与海洋物理 · 物理学 2020-03-31 Yongwen Zhang , Jingfang Fan , Xiaoteng Li , Wenqi Liu , Xiaosong Chen
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