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Related papers: Multimodal Flare Forecasting with Deep Learning

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Deep learning has drawn a lot of interest in recent years due to its effectiveness in processing big and complex observational data gathered from diverse instruments. Here we propose a new deep learning method, called SolarUnet, to identify…

Solar and Stellar Astrophysics · Physics 2020-09-02 Haodi Jiang , Jiasheng Wang , Chang Liu , Ju Jing , Hao Liu , Jason T. L. Wang , Haimin Wang

Line of sight satellite systems, unmanned aerial vehicles, high-altitude platforms, and microwave links that operate on frequency bands such as Ka-band or higher are extremely susceptible to rain. Thus, rain fade forecasting for these…

Machine Learning · Computer Science 2021-10-05 Aidin Ferdowsi , David Whitefield

Magnetic field plays an important role in various solar eruptions like flares, coronal mass ejections, etc. The formation and evolution of characteristic magnetic field topology in solar eruptions are critical problems that will ultimately…

Solar and Stellar Astrophysics · Physics 2023-06-07 Wen He , Qiang Hu , Ju Jing , Haimin Wang , Chaowei Jiang , Sushree S. Nayak , Avijeet Prasad

Climate models are essential to understand and project climate change, yet long-standing biases and uncertainties in their projections remain. This is largely associated with the representation of subgrid-scale processes, particularly…

An all-clear flare prediction is a type of solar flare forecasting that puts more emphasis on predicting non-flaring instances (often relatively small flares and flare quiet regions) with high precision while still maintaining valuable…

Machine Learning · Computer Science 2021-05-05 Anli Ji , Berkay Aydin , Manolis K. Georgoulis , Rafal Angryk

Among the eruptive activity phenomena observed on the Sun, the most technology threatening ones are flares with associated coronal mass ejections (CMEs) and solar energetic particles (SEPs). Flares with associated CMEs and SEPs are produced…

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…

Solar and Stellar Astrophysics · Physics 2023-08-07 Eurico Covas

The hard X-ray emission in a solar flare is typically characterized by a number of discrete sources, each with its own spectral, temporal, and spatial variability. Establishing the relationship amongst these sources is critical to determine…

Solar and Stellar Astrophysics · Physics 2018-08-08 Federica Sciacchitano , Alberto Sorrentino , A Gordon Emslie , Anna Maria Massone , Michele Piana

One of the defining characteristics of a solar flare is the impulsive formation of very high temperature plasma. The properties of the thermal emission are not well understood, however, and the analysis of solar flare observations is often…

Solar and Stellar Astrophysics · Physics 2015-06-12 Harry P. Warren , John T. Mariska , George A. Doschek

In the classical flare picture, hard X-ray emission from the chromosphere is succeeded by soft-X-ray emission from hot plasma in the flare loop, the soft X-ray emission being a direct consequence of the impact of the non-thermal particle…

Solar and Stellar Astrophysics · Physics 2015-05-13 M. Battaglia , L. Fletcher , A. O. Benz

A hybrid two-stage machine learning architecture that addresses the problem of excessive false positives (false alarms) in solar flare prediction systems is investigated. The first stage is a convolutional neural network (CNN) model based…

Solar and Stellar Astrophysics · Physics 2022-05-09 Varad Deshmukh , Natasha Flyer , Kiera Van Der Sande , Thomas Berger

The analysis of waves in the visible side of the Sun allows the detection of active regions in the farside through local helioseismology techniques. The knowledge of the magnetism in the whole Sun, including the non-visible hemisphere, is…

Solar and Stellar Astrophysics · Physics 2019-12-04 T. Felipe , A. Asensio Ramos

Despite the advances in the field of solar energy, improvements of solar forecasting techniques, addressing the intermittent electricity production, remain essential for securing its future integration into a wider energy supply. A…

Computer Vision and Pattern Recognition · Computer Science 2020-05-25 Quentin Paletta , Joan Lasenby

Solar flares are energetic events in the solar atmosphere that are often linked with solar radio bursts (SRBs). SRBs are observed at metric to decametric wavelengths and are classified into five spectral classes (Type I--V) based on their…

Solar and Stellar Astrophysics · Physics 2023-06-28 Jeremiah Scully , Ronan Flynn , Peter Gallagher , Eoin Carley , Mark Daly

Accurate renewable energy production forecasting has become a priority as the share of intermittent energy sources on the grid increases. Recent work has shown that convolutional deep learning models can successfully be applied to forecast…

Image and Video Processing · Electrical Eng. & Systems 2022-01-24 Sebastian Bosma , Negar Nazari

We aim to reproduce the structure of the corona above a solar active region as seen in the extreme ultraviolet (EUV) using a three-dimensional magnetohydrodynamic (3D MHD) model. The 3D MHD data-driven model solves the induction equation…

Solar and Stellar Astrophysics · Physics 2019-04-30 Jörn Warnecke , Hardi Peter

We demonstrate the use of machine learning algorithms in combination with segmentation techniques in order to distinguish coronal holes and filaments in SDO/AIA EUV images of the Sun. Based on two coronal hole detection techniques…

To understand its evolution and the effects of its eruptive events, the Sun is permanently monitored by multiple satellite missions. The optically-thin emission of the solar plasma and the limited number of viewpoints make it challenging to…

Full-disk spectroscopic observations of the solar corona are highly desired to forecast solar eruptions and their impact on planets and to uncover the origin of solar wind. In this paper, we introduce a new multi-slit design (5 slits) to…

Solar and Stellar Astrophysics · Physics 2024-06-12 Lami Chan , Hui Tian , Xianyu Liu , Tibor Török , Xianyong Bai , Yufei Feng , Dipankar Banerjee

We apply a novel pre-flare tracking of sunspot groups towards improving the estimation of flare onset time by focusing on the evolution of the 3D magnetic field construction of AR 11429. The 3D magnetic structure is based on potential field…

Solar and Stellar Astrophysics · Physics 2018-08-22 M. B. Korsos , S. Poedts , N. Gyenge , M. K. Georgoulis , S. Yu , S. K. Bisoi , Y. Yan , M. S. Ruderman , R. Erdelyi
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