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Magnetic flux generated within the solar interior emerges to the surface, forming active regions (ARs) and sunspots. Flux emergence may trigger explosive events, such as flares and coronal mass ejections and therefore understanding…

Solar and Stellar Astrophysics · Physics 2020-11-04 Dattaraj B. Dhuri , Shravan M. Hanasoge , Aaron C. Birch , Hannah Schunker

Measuring the performance of solar energy and heat transfer systems requires a lot of time, economic cost and manpower. Meanwhile, directly predicting their performance is challenging due to the complicated internal structures. Fortunately,…

Artificial Intelligence · Computer Science 2017-10-09 Hao Li , Zhijian Liu

Solar flares are the most explosive phenomena in the solar system and the main trigger of the events' chain that starts from Coronal Mass Ejections and leads to geomagnetic storms with possible impacts on the infrastructures at Earth.…

Solar and Stellar Astrophysics · Physics 2025-10-03 Chiara Curletto , Paolo Massa , Valeria Tagliafico , Cristina Campi , Federico Benvenuto , Michele Piana , Andrea Tacchino

Solar energetic particles (SEPs) are an essential source of space radiation, which are hazards for humans in space, spacecraft, and technology in general. In this paper we propose a deep learning method, specifically a bidirectional long…

Solar and Stellar Astrophysics · Physics 2022-05-18 Yasser Abduallah , Vania K. Jordanova , Hao Liu , Qin Li , Jason T. L. Wang , Haimin Wang

Among several heliophysical and geophysical quantities, the accurate evolution of the solar irradiance is fundamental to forecast the evolution of the neutral and ionized components of the Earth's atmosphere.We developed an artificial…

Solar and Stellar Astrophysics · Physics 2011-11-23 Luis Eduardo A. Vieira , Thierry Dudok de Wit , Matthieu Kretzschmar

Human living environment is influenced by intense solar activity. The solar activity exhibits periodicity and regularity. Although many deep-learning models are currently used for solar cycle prediction, most of them are based on a…

Solar and Stellar Astrophysics · Physics 2025-03-04 Cui Zhao , Kun Liu , Shangbin Yang , Jinchao Xia , Jingxia Chen , Jie Ren , Shiyuan Liu , Fangyuan He

We present a long short-term memory (LSTM) network for predicting whether an active region (AR) would produce a gamma-class flare within the next 24 hours. We consider three gamma classes, namely >=M5.0 class, >=M class, and >=C class, and…

Solar and Stellar Astrophysics · Physics 2019-06-06 Hao Liu , Chang Liu , Jason T. L. Wang , Haimin Wang

Despite the progress within the last decades, weather forecasting is still a challenging and computationally expensive task. Current satellite-based approaches to predict thunderstorms are usually based on the analysis of the observed…

Machine Learning · Computer Science 2019-12-04 Christian Schön , Jens Dittrich , Richard Müller

Disturbances in space weather can negatively affect several fields, including aviation and aerospace, satellites, oil and gas industries, and electrical systems, leading to economic and commercial losses. Solar flares are the most…

Solar and Stellar Astrophysics · Physics 2020-05-07 T. Cinto , A. L. S. Gradvohl , G. P. Coelho , A. E. A. da Silva

Reliable wind turbine power prediction is imperative to the planning, scheduling and control of wind energy farms for stable power production. In recent years Machine Learning (ML) methods have been successfully applied in a wide range of…

The increasing installation of Photovoltaics (PV) cells leads to more generation of renewable energy sources (RES), but results in increased uncertainties of energy scheduling. Predicting PV power generation is important for energy…

Machine Learning · Computer Science 2024-05-15 Hui Song , Zheng Miao , Ali Babalhavaeji , Saman Mehrnia , Mahdi Jalili , Xinghuo Yu

We study the photospheric magnetic field of ~2000 active regions in solar cycle 23 to search for parameters indicative of energy build-up and subsequent release as a solar flare. We extract three sets of parameters: snapshots in space and…

Solar and Stellar Astrophysics · Physics 2015-07-01 Amani Al-Ghraibah , Laura. E. Boucheron , R. T. James McAteer

Ahead-of-time forecasting of the output power of power plants is essential for the stability of the electricity grid and ensuring uninterrupted service. However, forecasting renewable energy sources is difficult due to the chaotic behavior…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Anas Al-lahham , Obaidah Theeb , Khaled Elalem , Tariq A. Alshawi , Saleh A. Alshebeili

Automated forecasts serve important role in space weather science, by providing statistical insights to flare-trigger mechanisms, and by enabling tailor-made forecasts and high-frequency forecasts. Only by realtime forecast we can…

Solar activity is usually caused by the evolution of solar magnetic fields. Magnetic field parameters derived from photospheric vector magnetograms of solar active regions have been used to analyze and forecast eruptive events such as solar…

Solar and Stellar Astrophysics · Physics 2023-07-26 Haodi Jiang , Qin Li , Zhihang Hu , Nian Liu , Yasser Abduallah , Ju Jing , Genwei Zhang , Yan Xu , Wynne Hsu , Jason T. L. Wang , Haimin Wang

When cloud layers cover photovoltaic (PV) panels, the amount of power the panels produce fluctuates rapidly. Therefore, to maintain enough energy on a power grid to match demand, utilities companies rely on reserve power sources that…

In this paper, we present an enhanced Convolutional Neural Network (CNN)-based rooftop solar photovoltaic (PV) panel detection approach using satellite images. We propose to use pre-trained CNN-based model to extract the local convolutional…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Kuldeep Kurte , Kedar Kulkarni

Predicting the short-term power output of a photovoltaic panel is an important task for the efficient management of smart grids. Short-term forecasting at the minute scale, also known as nowcasting, can benefit from sky images captured by…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Jinsong Zhang , Rodrigo Verschae , Shohei Nobuhara , Jean-François Lalonde

This work explores the impacts of magnetogram projection effects on machine learning-based solar flare forecasting models. Utilizing a methodology proposed by Falconer et al. (2016), we correct for projection effects present in Georgia…

Solar and Stellar Astrophysics · Physics 2025-02-12 Griffin T. Goodwin , Viacheslav M. Sadykov , Petrus C. Martens

Early detection of lung cancer is an effective way to improve the survival rate of patients. It is a critical step to have accurate detection of lung nodules in computed tomography (CT) images for the diagnosis of lung cancer. However, due…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Haichao Cao , Hong Liu , Enmin Song , Guangzhi Ma , Xiangyang Xu , Renchao Jin , Tengying Liu , Chih-Cheng Hung