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相关论文: The Sampling Method for Optimal Precursors of ENSO…

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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

This study presents a methodology for surrogate optimization of cyclic adsorption processes, focusing on enhancing Pressure Swing Adsorption units for carbon dioxide ($CO_{2}$) capture. We developed and implemented a multiple-input,…

化学物理 · 物理学 2023-12-08 Carine Menezes Rebello , Idelfonso B. R. Nogueira

On average once every four years, the Tropical Pacific warms considerably during events called El Ni\~no, leading to weather disruptions over many regions on Earth. Recent machine-learning approaches to El Ni\~no prediction, in particular…

大气与海洋物理 · 物理学 2024-06-19 G. Lancia , I. J. Goede , C. Spitoni , H. A. Dijkstra

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…

大气与海洋物理 · 物理学 2022-01-19 Gary Froyland , Dimitrios Giannakis , Benjamin Lintner , Maxwell Pike , Joanna Slawinska

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

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…

大气与海洋物理 · 物理学 2019-12-05 Jin-Liang Wang

Global Climate Models are key tools for predicting the future response of the climate system to a variety of natural and anthropogenic forcings. Here we show how to use statistical mechanics to construct operators able to flexibly predict…

大气与海洋物理 · 物理学 2020-11-16 Valerio Lembo , Valerio Lucarini , Francesco Ragone

Forecasting the future trajectories of surrounding agents is crucial for autonomous vehicles to ensure safe, efficient, and comfortable route planning. While model ensembling has improved prediction accuracy in various fields, its…

机器学习 · 计算机科学 2024-09-23 Aron Distelzweig , Eitan Kosman , Andreas Look , Faris Janjoš , Denesh K. Manivannan , Abhinav Valada

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

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

Weighted compact nonlinear schemes (WCNS) [Deng and Zhang, JCP 165(2000): 22-44] were developed to improve the performance of the compact high-order nonlinear schemes (CNS) by utilizing the weighting technique originally designed for WENO…

计算物理 · 物理学 2020-11-30 Huaibao Zhang , Fan Zhang , Chunguang Xu

Forecasting a time series from multivariate predictors constitutes a challenging problem, especially using model-free approaches. Most techniques, such as nearest-neighbor prediction, quickly suffer from the curse of dimensionality and…

机器学习 · 统计学 2015-06-22 Jakob Runge , Reik V. Donner , Jürgen Kurths

Data assimilation methods aim at estimating the state of a system by combining observations with a physical model. When sequential data assimilation is considered, the joint distribution of the latent state and the observations is described…

统计方法学 · 统计学 2018-04-23 Thi Tuyet Trang Chau , Pierre Ailliot , Valérie Monbet , Pierre Tandeo

Understanding ENSO dynamics has tremendously improved over the past decades. However, one aspect still poorly understood or represented in conceptual models is the ENSO diversity in spatial pattern, peak intensity, and temporal evolution.…

动力系统 · 数学 2024-02-08 Yinling Zhang , Nan Chen , Jerome Vialard , Xianghui Fang

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…

大气与海洋物理 · 物理学 2022-03-31 Josef Ludescher , Jun Meng , Jingfang Fan

Effective resource management and environmental planning in regions with high climatic variability, such as Chile, demand advanced predictive tools. This study addresses this challenge by employing an innovative and computationally…

机器学习 · 计算机科学 2025-02-26 Mauricio Herrera , Francisca Kleisinger , Andrés Wilsón

Reduced-order dynamical models play a central role in developing our understanding of predictability of climate irrespective of whether we are dealing with the actual climate system or surrogate climate-models. In this context, the…

地球物理 · 物理学 2021-03-11 B. T. Nadiga

Estimating the location and intensity of tropical cyclones holds crucial significance for predicting catastrophic weather events. In this study, we approach this task as a detection and regression challenge, specifically over the North…

图像与视频处理 · 电气工程与系统科学 2024-10-14 Akash Agrawal , Mayesh Mohapatra , Abhinav Raja , Paritosh Tiwari , Vishwajeet Pattanaik , Neeru Jaiswal , Arpit Agarwal , Punit Rathore

Reduced order modeling (ROM) aims to mitigate computational complexity by reducing the size of a high-dimensional state space. In this study, we demonstrate the efficiency, accuracy, and stability of proper orthogonal decomposition…

大气与海洋物理 · 物理学 2025-04-17 Yusuf Aydogdu , Navaratnam Sri Namachchivaya

In this work, we developed a nonlinear System Identification (SID) method that we called Entropic Regression. Our method adopts an information-theoretic measure for the data-driven discovery of the underlying dynamics. Our method shows…

信号处理 · 电气工程与系统科学 2020-01-29 Abd AlRahman R. AlMomani , Jie Sun , Erik Bollt