Results 81 to 90 of about 9,433 (226)

Segmentation and Tracking of Eruptive Solar Phenomena With Convolutional Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Solar eruptive events are complex phenomena, which most often include coronal mass ejections (CME), CME‐driven compressive and shock waves, flares, and filament eruptions. CMEs are large eruptions of magnetized plasma from the Sun's outer atmosphere or corona, that propagate outward into the interplanetary space.
Oleg Stepanyuk, Kamen Kozarev
wiley   +1 more source

Plasma Depletion and Mirror Waves Ahead of Interplanetary Coronal Mass Ejections

, 2006
We find that the sheath regions between fast interplanetary coronal mass ejections (ICMEs) and their preceding shocks are often characterized by plasma depletion and mirror wave structures, analogous to planetary magnetosheaths.
Badruddin, Bavassano Cattaneo, Bothmer, Burlaga, Chandrasekhar, Chew, Crooker, Crooker, Erkaev, Farrugia, Gary, Gary, Gary, Goldstein, Gosling, Gosling, Hammond, Hasegawa, Hau, Haurwitz, Hill, Hu, Hu, Ifedili, Isenberg, J. C. Kasper, J. D. Richardson, J. W. Belcher, Kasper, Kaufmann, Kivelson, Klein, Leamon, Lepping, Liu, Liu, Lopez, McComas, McComas, Mulligan, Neugebauer, Parker, Parks, Prager, Price, R. M. Skoug, Richardson, Richardson, Sonnerup, Southwood, Stasiewicz, Stix, Tsurutani, Violante, Viñas, Webb, Winterhalter, Y. Liu, Zurbuchen, Zwan   +59 more
core   +1 more source

Interactions of energetic electrons with ULF waves triggered by interplanetary shock: Van Allen Probes observations in the magnetotail [PDF]

, 2014
We present in situ observations of a shock-induced substorm-like event on 13 April 2013 observed by the newly launched Van Allen twin probes. Substorm-like electron injections with energy of 30-500 keV were observed in the region from L∼5.2 to 5.5 ...
Blake, J. B., Bonnell, J., Fu, S. Y., Hao, Y. X., Kletzing, C A., Pu, Z. Y., Spence, Harlan E., Wang, Y. F., Wygant, J. R., Zhang, Hui, Zhou, X. Z., Zong, Q. G   +11 more
core   +2 more sources

Identifying MESSENGER Magnetospheric Boundary Crossings Using a Random Forest Region Classifier

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract We present a new list of bow shock and magnetopause crossings based on automated region classification for the MESSENGER (Mercury Surface, Space Environment, Geochemistry and Ranging) mission. We fit a random forest model to magnetometer and ephemeris data to classify the solar wind, magnetosheath, and magnetosphere regions surrounding Mercury.
Daragh M. Hollman, Caitríona M. Jackman, Katarina Domijan, Charles F. Bowers, Simon J. Walker, Matthew J. Rutala, Alexandra R. Fogg   +6 more
wiley   +1 more source

Shocks inside CMEs: A Survey of Properties from 1997 to 2006

, 2015
We report on 49 fast-mode forward shocks propagating inside coronal mass ejections (CMEs) as measured by Wind and ACE at 1 AU from 1997 to 2006. Compared to typical CME-driven shocks, these shocks propagate in different upstream conditions, where the ...
Farrugia, C. J., Lugaz, N., Paulson, K., Smith, C. W.   +3 more
core   +1 more source

Interplanetary slow shock observed from Wind

Geophysical Research Letters, 1996
Observations of interplanetary slow shocks near 1 AU are rare. From the magnetic field data obtained from MFI and the proton and electron data obtained from SWE of the WIND spacecraft, we identify the observation of a reverse slow shock on December 24, 1994. The plasma β is small in preshock region.
Y. C. Whang, J. Zhou, R. P. Lepping, K. W. Ogilvie   +3 more
openaire   +1 more source

The Geomagnetic Storm on 10–12 May 2024 and Its Effect on the Swedish Power Grid

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10–12 May 2024, at least five interplanetary coronal mass ejections (ICMEs) arrived at Earth and caused the strongest geomagnetic storm in over 20 years. During this geomagnetic storm, a disturbance occurred in a transformer in southern Sweden, causing a drop in power supply in the power line connecting Sweden and Poland.
A. V. L. Wallner, A. P. Dimmock, V. Lanabere, A. Johlander, S. Molenkamp Venholen, A. Viljanen, L. Juusola, L. Rosenqvist, J. Setréus, E. Yordanova, S. Buchert, U. Heiter, Yu. V. Khotyaintsev   +12 more
wiley   +1 more source

The θBn problem: Determination of local magnetic parameters of interplanetary shocks from in situ IMF data [PDF]

Geofísica Internacional, 2001
The angle θBn is the angle between the upstream magnetic field and the shock normal direction and is important for many phenomena in interplanetary physics.
Andre Balogh, J. Américo González-Esparza   +1 more
doaj  

Analysis of Ionospheric Disturbances Near 120°E in the Asia‐Pacific Sector During the May 2024 Superstorm Using Multi‐Instrument Observations

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10 May 2024, a severe G5 geomagnetic storm—the most intense of solar cycle 25—significantly disturbed the global ionosphere. This study presents a comprehensive analysis using multi‐instrument observations, including ground‐based measurements from BDS‐GEO total electron content (TEC), digital ionosondes, and magnetometers; model outputs ...
Yue Sun, Jun Tang, Hanyang Teng, Chaoqian Xu, Liang Zhang   +4 more
wiley   +1 more source

Simulation of January 1-7, 1978 events [PDF]

The solar wind disturbances of January 1 to 7, 1978 are reconstructed by a modeling method. First, the interplanetary magnetic field (IMF) background pattern, including a corotating shock, is reproduced using the Stanford source surface map.
Akasofu, S.-I., Chao, J. K., Moldwin, M. B.   +2 more
core   +1 more source