Results 41 to 50 of about 15,851 (215)

Full Velocities and Propagation Directions of Coronal Mass Ejections Inferred from Simultaneous Full-disk Imaging and Sun-as-a-star Spectroscopic Observations

The Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are violent ejections of magnetized plasma from the Sun that can trigger geomagnetic storms, endanger satellite operations, and destroy electrical infrastructures on the Earth.
Hong-peng Lu, Hui Tian, He-chao Chen, Yu Xu, Zhen-yong Hou, Xian-yong Bai, Guang-yu Tan, Zi-hao Yang, Jie Ren   +8 more
doaj   +1 more source

CNN‐Based Model for 3D CME Parameter Prediction – A Proof of Concept

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Accurate 3D reconstruction of coronal mass ejections (CMEs) is essential for understanding their propagation and improving space weather forecasts. In this study, we present a proof‐of‐concept deep learning framework that predicts seven parameters from synthetic multi‐view coronagraph images.
Harshita Gandhi, Huw Morgan, Cory Thomas
wiley   +1 more source

Using an Ellipsoid Model to Track and Predict the Evolution and Propagation of Coronal Mass Ejections

, 2012
We present a method for tracking and predicting the propagation and evolution of coronal mass ejections (CMEs) using the imagers on the STEREO and SOHO satellites.
A. Hupach, A. Thernisien, A. Vourlidas, A.B. Galvin, A.J. Hundhausen, B.E. Wood, B.E. Wood, C. Cattell, F. Auchère, G.E. Brueckner, K. Kersten, L. Jian, M.H. Acuna, N. Lugaz, N. Lugaz, N. Lugaz, N.P. Savani, N.R. Sheeley, N.R. Sheeley, R. Schwenn, R.A. Howard, R.M.E. Illing, R.P. Lepping, R.P. Lin, S. Schreiner, T.A. Howard, T.A. Howard, V. Domingo, Y. Liu   +28 more
core   +1 more source

Premature Reentry of the Binar CubeSats Due To Underestimation of Solar and Geomagnetic Activities and Its Implication for Importance of Medium‐ and Long‐Term Space Weather Forecasts

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The rapid development of low‐Earth orbit (LEO) satellites brings increased attention to spacecraft collisions, space debris, orbital decay, and satellite reentry. Neutral density and associated drag force on the satellite orbits elevate space risks, significantly determined by space weather disturbances, particularly geomagnetic storms.
Xin Wang, Ronglan Wang, Kunpeng Wang, Zhitao Yang, Tingling Ren, Jifeng Cao, Ming Li, Siqing Liu, Bingxian Luo, Chi Wang   +9 more
wiley   +1 more source

Coronal Loop Detection Using Multiscale Convolutional Neural Networks

The Astrophysical Journal Supplement Series, 2023
Solar magnetic fields play an important role in many solar activities, such as the solar wind, coronal mass ejections, and coronal oscillation. Coronal loops are curvilinear structures in the solar atmosphere and are closely related to coronal magnetic ...
Yunzhi Wang, Bo Liang, Song Feng
doaj   +1 more source

Propagation of an Earth-directed coronal mass ejection in three dimensions

, 2010
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.
A Horwitz, A Horwitz, A Thernisien, B Kliem, B Vršnak, B Vršnak, B Vršnak, BE Wood, BP Filippov, C-H Lin, CA deKoning, CA Young, CJ Davis, CJ Davis, CJ Schrijver, CN Arge, D Odstrčil, DB Berdichevsky, E Chané, EKJ Kilpua, GW Pneuman, H Cremades, H Xie, H Xie, J Chen, JA González-Esparza, JP Byrne, M Banaszkiewicz, M Mierla, MJ Aschwanden, ML Kaiser, N Gopalswamy, N Gopalswamy, N Srivastava, P Démoulin, P Riley, PC Liewer, PJ Cargill, PJ Cargill, R Prangé, R Schwenn, RA Howard, RM MacQueen, S Yashiro, SA Maloney, SJ Tappin, SK Antiochos, TA Howard, TA Howard, TG Moran, V Bothmer, VJ Pizzo, XP Zhao, Y Liu   +53 more
core   +1 more source

The Impact of the 2024 Mother's Day Storm on Aircraft Surveillance Across Europe

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The Mother's day storm from 10–13 May 2024 is one of the most extreme space weather events recorded in recent decades and triggered a strong ionospheric response with various impacts on communication and navigation systems. In this study the impact on the aviation sector, and more specifically air traffic management, is investigated with ...
Erik Schmölter, Jens Berdermann
wiley   +1 more source

Short term Variability of the Sun Earth System: An Overview of Progress Made during the CAWSES II Period [PDF]

, 2015
This paper presents an overview of results obtained during the CAWSES II period on the short term variability of the Sun and how it affects the near Earth space environment. CAWSES II was planned to examine the behavior of the solar terrestrial system as
Gopalswamy, Nat, Tsurutani, Bruce, Yan, Yihua   +2 more
core   +2 more sources

Significant Amplification of Turbulent Energy Dissipation Through the Shock Transition at Mars

Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract Turbulence is fundamental to energy transfer across scales in space and astrophysical plasmas. Bow shock interactions have long been hypothesized to significantly modify turbulence in planetary environments, yet the quantification of such effects and their parametric dependencies remain largely unaddressed.
Wence Jiang, Hui Li, Nahuel Andrés, Lina Hadid, Daniel Verscharen, Chi Wang   +5 more
wiley   +1 more source

A Deep Learning Method for Automatic Coronal Mass Ejection Feature Identification

The Astrophysical Journal Supplement Series
Coronal mass ejections (CMEs), intense solar eruptive phenomena, are the primary drivers of extreme space weather storms on Earth. As space activities become increasingly frequent and infrastructure more reliant on space-based systems, the rapid and ...
P. Yang, H. S. Fu, J. B. Cao, F. Shen
doaj   +1 more source