Results 91 to 100 of about 17,830 (208)

A Physics‐Informed Neural Network Approach to the Gannon Storm

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Extreme geomagnetic storms, such as the May 2024 Gannon event, pose significant risks to technological infrastructure, requiring robust forecasting models. Here, we apply Physics‐Informed Neural Networks (PINNs) to the Burton equation to model the storm's ring current dynamics by studying the temporal evolution of the SuperMAG SMR index during
M. Lacal, E. Camporeale, M. Piersanti, G. Consolini   +3 more
wiley   +1 more source

The Need for a Sub‐L1 Space Weather Research Mission: Current Knowledge Gaps on Coronal Mass Ejections

Space Weather
Over the past decades, missions at the L1 point have been providing solar wind and interplanetary magnetic field measurements that are necessary for forecasting space weather at Earth with high accuracy and a lead time of a few tens of minutes. Improving
Noé Lugaz, Nada Al‐Haddad, Bin Zhuang, Christian Möstl, Emma E. Davies, Charles J. Farrugia, Sahanaj Aktar Banu, Eva Weiler, Antoinette B. Galvin   +8 more
doaj   +1 more source

Direct Observations of a Shock Traversing Preceding Two Coronal Mass Ejections: Insights from Solar Orbiter, Wind, and STEREO Observations

The Astrophysical Journal Letters
The three successive coronal mass ejections (CMEs) that erupted from 2023 November 27–28, provide the first opportunity to shed light on the entire process of a shock propagating through, sequentially compressing, and modifying two preceding CMEs using ...
Yutian Chi, Chenglong Shen, Zhiyong Zhang, Mengjiao Xu, Dongwei Mao, Junyan Liu, Can Wang, Bingkun Yu, Jingyu Luo, Zhihui Zhong, Yuming Wang   +10 more
doaj   +1 more source

Reconstructing solar wind inhomogeneous structures from stereoscopic observations in white-light: Small transients along the Sun-Earth line

, 2018
The Heliospheric Imagers (HI) on board the two spacecraft of the Solar Terrestrial Relations Observatory (STEREO) provided white-light images of transients in the solar wind from dual perspectives from 2007 to 2014. In this paper, we develop a new method
Chi, Yutian, Li, Xiaolei, Liu, Jiajia, Liu, Rui, Shen, Chenglong, Wang, Yuming, Zhang, Quanhao, Zhuang, Bin   +7 more
core   +1 more source

Implications of Using Spheroidal “Cone Model” CMEs in Solar‐Wind Models

Space Weather
Space‐weather forecasting requires advanced prediction of the arrival time and properties of coronal mass ejections (CMEs) in near‐Earth space. Kinematic properties of CMEs close to the Sun—such as speed, direction and angular width—are routinely ...
M. J. Owens, L. A. Barnard, C. Verbeke, B. P. S. McGinness, H. Turner, Y. Chi, D. Gyeltshen, M. Lockwood   +7 more
doaj   +1 more source

Wave speeds in the corona and the dynamics of mass ejections [PDF]

A disturbance or coronal mass ejection being advected by the solar wind will expand at the fastest local characteristic speed - typically approximately the fast-mode speed.
Moore, R. L., Suess, S. T.
core   +1 more source

A Challenging Solar Eruptive Event of 18 November 2003 and the Causes of the 20 November Geomagnetic Superstorm. I. Unusual History of an Eruptive Filament

, 2013
This is the first of four companion papers, which analyze a complex eruptive event of 18 November 2003 in AR 10501 and the causes of the largest Solar Cycle 23 geomagnetic storm on 20 November 2003. Analysis of a complete data set, not considered before,
Chertok, I. M., Filippov, B. P., Grechnev, V. V., Rudenko, G. V., Slemzin, V. A., Temmer, M., Uralov, A. M.   +6 more
core   +1 more source

Global ozone loss following extreme solar proton storms based on the July 2012 coronal mass ejection. [PDF]

Sci Rep, 2023
Kalakoski N, Verronen PT, Szeląg ME, Jackman CH.   +3 more
europepmc   +1 more source

Coronal "Wave": Magnetic Footprint of a Coronal Mass Ejection?

The Astrophysical Journal, 2007
We investigate the properties of two "classical" EUV Imaging Telescope (EIT) coronal waves. The two source regions of the associated coronal mass ejections (CMEs) possess opposite helicities, and the coronal waves display rotations in opposite senses.
Attrill, Gemma D. R., Harra, Louise K., van Driel-Gesztelyi, Lidia, Démoulin, Pascal   +3 more
openaire   +2 more sources

Modeling Polarized Radio Sounding Observations of a Coronal Mass Ejection

The Astrophysical Journal
Coronal mass ejections (CMEs) evolve significantly as they propagate from the Sun to the Earth, so remote observations of their changes in speed, strength of the magnetic field, density, and overall structure are critical for predicting their arrival ...
Elizabeth A. Jensen, W. B. Manchester IV, J. E. Kooi, T. Nieves-Chinchilla, L. K. Jian, D. B. Wexler, S. F. Fung, N. Gopalswamy   +7 more
doaj   +1 more source