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Related papers: Ensemble Learning for CME Arrival Time Prediction

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We use multiwavelength data from space and ground based instruments to study the solar flares and coronal mass ejections (CMEs) on January 23, 2012 that were responsible for one of the largest solar energetic particle (SEP) events of solar…

The challenges in applications of solar energy lies in its intermittency and dependency on meteorological parameters such as; solar radiation, ambient temperature, rainfall, wind-speed etc., and many other physical parameters like dust…

Machine Learning · Computer Science 2024-04-02 Debojyoti Chakraborty , Jayeeta Mondal , Hrishav Bakul Barua , Ankur Bhattacharjee

Atmospheric Extreme Events (EEs) cause severe damages to human societies and ecosystems. The frequency and intensity of EEs and other associated events are increasing in the current climate change and global warming risk. The accurate…

The vulnerability of technology on which present society relies demands that a solar event, its time of arrival at Earth, and its degree of geoeffectiveness be promptly forecasted. Motivated by improving predictions of arrival times at…

Solar and Stellar Astrophysics · Physics 2015-11-04 H. Cremades , F. A. Iglesias , O. C. St. Cyr , H. Xie , M. L. Kaiser , N. Gopalswamy

Solar coronal mass ejections (CMEs) are the most significant drivers of adverse space weather at Earth, but the physics governing their propagation through the heliosphere is not well understood. While stereoscopic imaging of CMEs with the…

Solar and Stellar Astrophysics · Physics 2010-11-15 Jason P. Byrne , Shane A. Maloney , R. T. James McAteer , Jose M. Refojo , Peter T. Gallagher

Coronal mass ejections (CMEs) are the eruptions of magnetised plasma from the Sun and are considered the main driver of adverse space weather events. Hence, undrstanding its formation process, particularly the magnetic topology, is critical…

Solar and Stellar Astrophysics · Physics 2025-02-26 Jinhan Guo , Y. W. Ni , B. Schmieder , Y. Guo , C. Xia , P. Devi , R. Chandra , S. Poedts , R. Joshi , Y. H. Zhou , H. T. Li , P. F. Chen

Space weather indices are used commonly to drive forecasts of thermosphere density, which directly affects objects in low-Earth orbit (LEO) through atmospheric drag. One of the most commonly used space weather proxies, $F_{10.7 cm}$,…

Space Physics · Physics 2023-06-06 Joshua D. Daniell , Piyush M. Mehta

Coronal mass ejections (CMEs) are relatively a recently-discovered phenomenon, in 1971, some fifteen years into the Space Era. It took another two decades to realize that CMEs are the most important players in solar terrestrial relationship…

Solar and Stellar Astrophysics · Physics 2016-03-08 Nat Gopalswamy

The prediction of the arrival time and transit speed of CMEs near the Earth is one of the key problems in understanding the solar terrestrial relationship. Although, STEREO observations now provide a multiple view of CMEs in the…

Solar and Stellar Astrophysics · Physics 2014-02-17 Wageesh Mishra , Nandita Srivastava

One essential component of operational space weather forecasting is the prediction of solar flares. With a multitude of flare forecasting methods now available online it is still unclear which of these methods performs best, and none are…

Space Physics · Physics 2020-08-04 Jordan A. Guerra , Sophie A. Murray , D. Shaun Bloomfield , Peter T. Gallagher

The statistical study of the Coronal Mass Ejections (CMEs) is a hot topic in solar physics. To further reveal the temporal and spatial behaviors of the CMEs at different latitudes and heights, we analyzed the correlation and phase…

Solar and Stellar Astrophysics · Physics 2022-06-22 Jiaqi Lin , Feng Wang , Linhua Deng , Hui Deng , Ying Mei , Yangfan Xie

Coronal mass ejections (CMEs) are the primary sources of intense disturbances at Earth, where their geo-effectiveness is largely determined by their dynamic pressure and internal magnetic field, which can be significantly altered during…

The coronal mass ejections (CMEs) from the Sun are known for their space weather and geomagnetic consequences. Among all CMEs, so-called radio-loud (RL) and halo CMEs are considered the most energetic in the sense that they are usually…

Solar and Stellar Astrophysics · Physics 2021-05-05 A. Shanmugaraju , P. Pappa Kalaivani , Y. -J. Moon , O. Prakash

Stealth coronal mass ejections (CMEs) are eruptions from the Sun that have no obvious low coronal signature. These CMEs are characteristically slower events, but can still be geoeffective and affect space weather at Earth. Therefore,…

Solar and Stellar Astrophysics · Physics 2019-09-11 Jennifer O'kane , Lucie Green , David M. Long , Hamish Reid

Many questions must be answered before understanding the relationship between the emerging magnetic flux through the solar surface and the extreme geoeffective events. The main ingredients for getting X-ray class flares and large…

Solar and Stellar Astrophysics · Physics 2025-09-22 Brigitte Schmieder , Jinhan Guo , Guillaume Aulanier , Anwesha Maharana , Stefaan Poedts

We present two recurrent neural networks (RNNs), one based on gated recurrent units and the other based on long short-term memory, for predicting whether an active region (AR) that produces an M- or X-class flare will also produce a coronal…

Solar and Stellar Astrophysics · Physics 2020-02-26 Hao Liu , Chang Liu , Jason T. L. Wang , Haimin Wang

The LASCO coronagraphs, in continuous operation since 1995, have observed the evolution of the solar corona and coronal mass ejections (CMEs) over a full solar cycle with high quality images and regular cadence. This is the first time that…

Solar and Stellar Astrophysics · Physics 2015-05-19 Angelos Vourlidas , Russ A. Howard , Ed Esfandiari , Spiros Patsourakos , Seiji Yashiro , Gregorz Michalek

Coronal mass ejections (CMEs) are solar eruptions into interplanetary space of as much as a few billion tons of plasma, with embedded magnetic fields from the Sun's corona. These perturbations play a very important role in…

Astrophysics · Physics 2009-11-13 L. Hernandez-Cervantes , A. Santillan , A. R. Gonzalez-Ponce

Shocks driven by coronal mass ejections (CMEs) are primary drivers of gradual solar energetic particle (SEP) events, posing significant risks to space technology and astronauts. Concurrently, particles accelerated at these shocks may also…

A goal of the NASA STEREO mission is to study the feasibility of forecasting the direction, arrival time and internal structure of solar coronal mass ejections (CMEs) from a vantage point outside the Sun-Earth line. Through a case study, we…