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Related papers: Forecasting the El Ni\~no type well before the spr…

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Most of the existing prediction methods gave a false alarm regarding the El Ni\~no event in 2014. A crucial aspect is currently limiting the success of such predictions, i.e. the stability of the slowly varying Pacific climate. This…

Atmospheric and Oceanic Physics · Physics 2017-08-31 Qing Yi Feng , Henk A. Dijkstra

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

Drought is a costly natural hazard, many aspects of which remain poorly understood. It has many contributory factors, driving its outset, duration, and severity, including land surface, anthropogenic activities, and, most importantly,…

Applications · Statistics 2020-09-18 Mohammad Noorbakhsh , Colm Connaughton , Francisco A. Rodrigues

The accurate long-term forecasting of the El Nino Southern Oscillation (ENSO) is still one of the biggest challenges in climate science. While it is true that short-to medium-range performance has been improved significantly using the…

Atmospheric and Oceanic Physics · Physics 2025-09-09 Saghar Ganji , Mohammad Naisipour , Alireza Hassani , Arash Adib

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…

Dynamical Systems · Mathematics 2022-07-08 Panagiotis Kaklamanos , Nikola Popović

The coupled atmosphere-ocean variability of the Indo-Pacific on interannual to multidecadal timescales is investigated in a millennial control run of CCSM4 and in observations using a family of modes recovered in Part~I of this work from…

Atmospheric and Oceanic Physics · Physics 2016-09-30 Dimitrios Giannakis , Joanna Slawinska

Intraseasonal variations of the South Asian Summer Monsoon (SASM) contain alternating extreme rainfall (active) and low rainfall (break) phases impacting agriculture and economies. Their timing and spatial location are dominated by the…

Atmospheric and Oceanic Physics · Physics 2023-11-27 Felix M. Strnad , Jakob Schloer , Ruth Geen , Niklas Boers , Bedartha Goswami

We study the dynamics of the El Nino phenomenon using the mathematical model of delayed-action oscillator (DAO). Topics such as the influence of the annual cycle, global warming, stochastic influences due to weather conditions and even…

Atmospheric and Oceanic Physics · Physics 2007-05-23 Ian Boutle , Richard H. S. Taylor , Rudolf A. Roemer

Temporary changes in precipitation may lead to sustained and severe drought or massive floods in different parts of the world. Knowing variation in precipitation can effectively help the water resources decision-makers in water resources…

Atmospheric and Oceanic Physics · Physics 2020-01-28 Majid Dehghani , Somayeh Salehi , Amir Mosavi , Narjes Nabipour , Shahaboddin Shamshirband , Pedram Ghamisi

This paper extends previous work (Groom et al., \emph{Artif. Intell. Earth Syst.}, 2024) in applying the entropy-optimal Sparse Probabilistic Approximation (eSPA) algorithm to predict ENSO phase, defined by thresholding the Ni\~no3.4 index.…

Computational Physics · Physics 2025-04-02 Michael Groom , Davide Bassetti , Illia Horenko , Terence J. O'Kane

Predicting sea surface temperature (SST) within the El Ni\~no-Southern Oscillation (ENSO) region has been extensively studied due to its significant influence on global temperature and precipitation patterns. Statistical models such as…

Atmospheric and Oceanic Physics · Physics 2023-06-21 Lingda Wang , Savana Ammons , Vera Mikyoung Hur , Ryan L. Sriver , Zhizhen Zhao

The integration of renewable energy sources into power systems is expected to increase significantly in the coming decades. This can result in critical situations related to the strong variability in space and time of weather patterns.…

Several recent studies have linked the exceptional North Atlantic and Eurasian atmospheric evolution during late February and March 2018 to the Sudden Stratospheric Warming (SSW) that took place a few weeks earlier. February 2018 was…

In a statistical analysis of more than a century of data we find a strong connection between strong warm El Nino winter events and high spring precipitation in a band from Southern England eastwards into Asia. This relationship is an…

Atmospheric and Oceanic Physics · Physics 2007-05-23 Geert Jan van Oldenborgh , Gerrit Burgers , Albert Klein Tank

The dynamics of the El Ni\~no-Southern Oscillation (ENSO) are succinctly captured by the Recharge Oscillator (RO) framework. However, to simulate ENSO realistically, careful choices must be made regarding the RO's key parameters. In…

Atmospheric and Oceanic Physics · Physics 2025-09-16 Sooman Han , Alexey Fedorov , Jérôme Vialard

Skillful seasonal prediction of lightning is crucial over several global hotspot regions, as it causes severe damages to infrastructures and losses of human life. While major emphasis has been given for predicting rainfall, prediction of…

We present a new approach to forecasting North Pacific Sea Surface Temperatures (SST) by recognizing that interannual variability primarily reflects amplitude changes in four dominant seasonal cycles. Our multivariate linear model…

Atmospheric and Oceanic Physics · Physics 2026-01-06 Rameshan Kallummal

We show that the monthly recorded history (1878-2013) of the Southern Oscillation Index (SOI), a descriptor of the El Ni\~no Southern Oscillation (ENSO) phenomenon, can be well described as a dynamic system that supports an average…

Geophysics · Physics 2018-05-21 H. F. Astudillo , R. Abarca-del-Rio , F. A. Borotto

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 path toward realizing the potential of seasonal forecasting and its socioeconomic benefits depends heavily on improving general circulation model based dynamical forecasting systems. To improve dynamical seasonal forecast, it is crucial…

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