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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

Precipitation is one of the most important meteorological variables for defining the climate dynamics, but the spatial patterns of precipitation have not been fully investigated yet. The complex network theory, which provides a robust tool…

大气与海洋物理 · 物理学 2013-08-22 Stefania Scarsoglio , Francesco Laio , Luca Ridolfi

The identification of precursors of climatic phenomena has enormous practical importance. Recent work constructs a climate network based on surface air temperature data to analyze the El Ni\~no phenomena. We utilize microtransitions which…

大气与海洋物理 · 物理学 2021-04-21 Rupali Sonone , Neelima Gupte

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…

大气与海洋物理 · 物理学 2021-07-07 Stéphane Vannitsem , Jonathan Demaeyer , Michael Ghil

The complex network framework has been successfully applied to the analysis of climatological data, providing, for example, a better understanding of the mechanisms underlying reduced predictability during El Ni\~no or La Ni\~na years.…

大气与海洋物理 · 物理学 2015-06-16 Giulio Tirabassi , Cristina Masoller

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.…

计算物理 · 物理学 2025-04-02 Michael Groom , Davide Bassetti , Illia Horenko , Terence J. O'Kane

In recent years, the application of machine learning approaches to time-series forecasting of climate dynamical phenomena has become increasingly active. It is known that applying a band-pass filter to a time-series data is a key to…

计算物理 · 物理学 2025-05-26 Takuya Jinno , Takahito Mitsui , Kengo Nakai , Yoshitaka Saiki , Tsuyoshi Yoneda

Faithful uncertainty quantification (UQ) is paramount in high stakes climate prediction. Deep ensembles, or ensembles of probabilistic neural networks, are state of the art for UQ in machine learning (ML) and are growing increasingly…

大气与海洋物理 · 物理学 2026-03-24 Devin M. McAfee , Elizabeth A. Barnes

In this article, we review the interdisciplinary techniques (borrowed from physics, mathematics, statistics, machine-learning, etc.) and methodological framework that we have used to understand climate systems, which serve as examples of…

数据分析、统计与概率 · 物理学 2024-05-29 Alka Yadav , Sourish Das , Anirban Chakraborti

We study the forced response of the teleconnection between the El Nino-Southern Oscillation (ENSO) and global precipitation in general and the Indian summer monsoon (IM) in particular in the Max Planck Institute Grand Ensemble. The forced…

大气与海洋物理 · 物理学 2020-09-07 Tamás Bódai , Gábor Drótos , Kyung-Ja Ha , June-Yi Lee , Tímea Haszpra , Eui-Seok Chung

The Atacama desert stands as the most arid, non-polar, region on Earth and has accommodated a considerable portion of the world's ground-based astronomical observatories for an extended period. The comprehension of factors important for…

天体物理仪器与方法 · 物理学 2023-09-27 Julia Victoria Seidel , Angel Otarola , Valentina Théron

El Ni\~{n}o-Southern Oscillation (ENSO) is one of the significant climate phenomena, which appears periodically in the tropic Pacific. The intermediate coupled ocean-atmosphere Zebiak-Cane (ZC) model is the first and classical one designed…

大气与海洋物理 · 物理学 2023-08-29 Bin Shi , Junjie Ma

We show that the climate phenomena of El Nino and La Nina arise naturally as states of macro-variables when our recent causal feature learning framework (Chalupka 2015, Chalupka 2016) is applied to micro-level measures of zonal wind (ZW)…

机器学习 · 统计学 2016-05-31 Krzysztof Chalupka , Tobias Bischoff , Pietro Perona , Frederick Eberhardt

Extreme rainfall in the Indian summer monsoon can be destructive and deadly. Although El Ni\~no/ events in the equatorial Pacific make dry days and whole summers more likely throughout India, their influence on daily extremes is not well…

Though the Boltzmann-Gibbs framework of equilibrium statistical mechanics has been successful in many arenas, it is clearly inadequate for describing many interesting natural phenomena driven far from equilibrium. The simplest step towards…

大气与海洋物理 · 物理学 2019-10-15 Jeffrey B. Weiss , Baylor Fox-Kemper , Dibyendu Mandal , Arin D. Nelson , R. K. P. Zia

We propose Echo State Networks (ESNs) to predict the statistics of extreme events in a turbulent flow. We train the ESNs on small datasets that lack information about the extreme events. We asses whether the networks are able to extrapolate…

流体动力学 · 物理学 2022-04-13 Alberto Racca , Luca Magri

Seasonal climate forecasts are socioeconomically important for managing the impacts of extreme weather events and for planning in sectors like agriculture and energy. Climate predictability on seasonal timescales is tied to boundary effects…

The diversity of El Ni\~no events is commonly described by two distinct flavors, the Eastern Pacific (EP) and Central Pacific (CP) types. While the remote impacts, i.e. teleconnections, of EP and CP events have been studied for different…

大气与海洋物理 · 物理学 2023-04-12 Felix M. Strnad , Jakob Schlör , Christian Fröhlich , Bedartha Goswami

The Indian summer monsoon rainfall (ISMR) has a decisive influence on India's agricultural output and economy. Extreme deviations from the normal seasonal amount of rainfall can cause severe droughts or floods, affecting Indian food…

The Southern Oscillation (ENSO) is modelled with the help of a simple model representing a classical damped oscillator forced by external forcing. Eastern Pacific sea surface temperature (SST) and the mean equatorial Pacific thermocline…

大气与海洋物理 · 物理学 2007-05-23 Vladimir N. Stepanov