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Forecasting future solar activity has become crucial in our modern world, where intense eruptive phenomena mostly occurring during solar maximum are likely to be strongly damaging to satellites and telecommunications. We present a 4D…

太阳与恒星天体物理 · 物理学 2025-07-02 L. Jouve , C. P. Hung , A. S. Brun , S. Hazra , A. Fournier , O. Talagrand , B. Perri , A. Strugarek

The prediction of solar flares, eruptions, and high energy particle storms is of great societal importance. The data mining approach to forecasting has been shown to be very promising. Benchmark datasets are a key element in the further…

太阳与恒星天体物理 · 物理学 2018-08-22 Petrus C. Martens , Rafal A. Angryk

Forecasting multivariate time series data, such as prediction of electricity consumption, solar power production, and polyphonic piano pieces, has numerous valuable applications. However, complex and non-linear interdependencies between…

机器学习 · 计算机科学 2019-09-20 Shun-Yao Shih , Fan-Keng Sun , Hung-yi Lee

Traditional solar flare forecasting approaches have mostly relied on physics-based or data-driven models using solar magnetograms, treating flare predictions as a point-in-time classification problem. This approach has limitations,…

机器学习 · 计算机科学 2024-09-10 Anli Ji , Chetraj Pandey , Berkay Aydin

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

Studying solar wind conditions is central to forecasting impact of space weather on Earth. Under the assumption that the structure of this wind is constant in time and corotates with the Sun, solar wind and thereby space weather forecasts…

太阳与恒星天体物理 · 物理学 2023-01-30 Nachiketa Chakraborty , Harriet Turner , Mathew Owens , Matthew Lang

Delay-coordinate embedding is a powerful, time-tested mathematical framework for reconstructing the dynamics of a system from a series of scalar observations. Most of the associated theory and heuristics are overly stringent for real-world…

动力系统 · 数学 2018-05-22 Joshua Garland

Long-term sensor network deployments demand careful power management. While managing power requires understanding the amount of energy harvestable from the local environment, current solar prediction methods rely only on recent local…

分布式、并行与集群计算 · 计算机科学 2014-10-28 Elizabeth Basha , Raja Jurdak , Daniela Rus

Nonlinear systems with model uncertainty are often described by stochastic differential equations. Some techniques from random dynamical systems are discussed. They are relevant to better understanding of solution processes of stochastic…

动力系统 · 数学 2008-11-25 Jinqiao Duan

Machine learning techniques have been widely used in attempts to forecast several solar datasets. Most of these approaches employ supervised machine learning algorithms which are, in general, very data hungry. This hampers the attempts to…

太阳与恒星天体物理 · 物理学 2023-08-07 Eurico Covas

Forecasting the solar cycle amplitude is important for a better understanding of the solar dynamo as well as for many space weather applications. We demonstrated a steady relationship between the maximal growth rate of sunspot activity in…

太阳与恒星天体物理 · 物理学 2023-01-06 Tatiana Podladchikova , Shantanu Jain , Astrid M. Veronig , Olga Sutyrina , Mateja Dumbovic , Frederic Clette , Werner Poetzi

The inherent stochastic and nonlinear nature of the solar dynamo makes the strength of the solar cycles vary in a wide range, making it difficult to predict the strength of an upcoming solar cycle. Recently, our work has shown that by using…

太阳与恒星天体物理 · 物理学 2024-12-25 Akash Biswas

In this paper, we apply a recently developed nonparametric modeling approach, the "diffusion forecast", to predict the time-evolution of Fourier modes of turbulent dynamical systems. While the diffusion forecasting method assumes the…

混沌动力学 · 物理学 2016-03-23 Tyrus Berry , John Harlim

In this paper a model is developed to solve the on/off scheduling of (non-linear) dynamic electric loads based on predictions of the power delivery of a (standalone) solar power source. Knowledge of variations in the solar power output is…

最优化与控制 · 数学 2016-03-29 Abdulelah H. Habib , Jan Kleissl , Raymond A. de Callafon

Here we study the prediction of even and odd numbered sunspot cycles separately, thereby taking into account the Hale cyclicity of solar magnetism. We first show that the temporal evolution and shape of all sunspot cycles are extremely well…

太阳与恒星天体物理 · 物理学 2023-09-11 Timo Asikainen , Jani Mantere

We present a new approach to study the properties of the sun. We consider small variations of the physical and chemical properties of the sun with respect to Standard Solar Model predictions and we linearize the structure equations to…

太阳与恒星天体物理 · 物理学 2014-11-20 F. L. Villante , B. Ricci

The length of the solar activity cycle fluctuates considerably. The temporal evolution of the corresponding cycle phase, that is, the deviation of the epochs of activity minima or maxima from strict periodicity, provides relevant…

太阳与恒星天体物理 · 物理学 2023-03-15 E. Weisshaar , R. H. Cameron , M. Schüssler

A proper forecast of the menstrual cycle is meaningful for women's health, as it allows individuals to take preventive actions to minimize cycle-associated discomforts. In addition, precise prediction can be useful for planning important…

机器学习 · 计算机科学 2023-08-17 Rosana C. B. Rego

In this paper, we present an application of neural networks in the renewable energy domain. We have developed a methodology for the daily prediction of global solar radiation on a horizontal surface. We use an ad-hoc time series…

人工智能 · 计算机科学 2009-06-02 Christophe Paoli , Cyril Voyant , Marc Muselli , Marie-Laure Nivet

An extremely challenging problem of significant interest is to predict catastrophes in advance of their occurrences. We present a general approach to predicting catastrophes in nonlinear dynamical systems under the assumption that the…

数据分析、统计与概率 · 物理学 2015-05-28 Wen-Xu Wang , Rui Yang , Ying-Cheng Lai , Vassilios Kovanis , Celso Grebogi