Results 141 to 150 of about 65,282 (317)

Analyzing Geomagnetic Data From the Dusheti Observatory During the Intense Magnetic Storms of 2024

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Geomagnetic storms, intense disturbances in the Earth's magnetosphere, pose risks to both technology and human activity in space. In this study, we analyzed geomagnetic field measurements from the Dusheti Observatory in Georgia during the intense geomagnetic storms of March 3, March 24, and 11 May 2024.
Oleg Kharshiladze, Luka Tsulukidze, Aleksandre Ghurchumelia, Luca Sorriso‐Valvo, Khatuna Elbakidze, Emiliya Yordanova, Tamaz Matiashvili   +6 more
wiley   +1 more source

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

CME dynamics using STEREO & LASCO observations: the relative importance of Lorentz forces and solar wind drag

, 2017
We seek to quantify the relative contributions of Lorentz forces and aerodynamic drag on the propagation of solar coronal mass ejections (CMEs). We use Graduated Cylindrical Shell (GCS) model fits to a representative set of 38 CMEs observed with the SOHO
Bothmer, Volker, Sachdeva, Nishtha, Subramanian, Prasad, Vourlidas, Angelos   +3 more
core   +1 more source

Somerset Maugham's Failings

Critical Quarterly, EarlyView.
Allan Hepburn
wiley   +1 more source

Assessing Magnetic Fluctuations Effects in the South American Sector in Relation to Global Variations Using Ksa Index, Kp Index, and Hybrid Formats During Quiet Times Across the Seasons of the 2020 Solar Minimum

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract Geomagnetic indices can be used to quantify variations in geomagnetic activity caused by Sun‐Earth interactions across the magnetosphere and ionosphere. The global Kp index is widely used as a global geomagnetic indicator, but it is based mostly on the Northern Hemisphere with no contributions from South American observatories.
L. M. Guizelli, C. M. Denardini, J. Moro, L. C. A. Resende, S. S. Chen, P. K. Nyassor   +5 more
wiley   +1 more source

Identifying Coronal Mass Ejection Active Region Sources: An Automated Approach

The Astrophysical Journal
Identifying the source regions of coronal mass ejections (CMEs) is crucial for understanding their origins and improving space weather forecasting. We present an automated algorithm for matching CMEs detected by the Large Angle Spectrometric Coronagraph ...
Julio Hernandez Camero, Lucie M. Green, Alex Piñel Neparidze   +2 more
doaj   +1 more source

Prompt Response of the Dayside Magnetosphere to Discrete Structures Within the Sheath Region of a Coronal Mass Ejection. [PDF]

Geophys Res Lett, 2021
Blum LW, Koval A, Richardson IG, Wilson LB, Malaspina D, Greeley A, Jaynes AN.   +6 more
europepmc   +1 more source

Observation of An Evolving Magnetic Flux Rope Prior To and During A Solar Eruption

, 2012
Explosive energy release is a common phenomenon occurring in magnetized plasma systems ranging from laboratories, Earth's magnetosphere, the solar corona and astrophysical environments.
B Kliem, CJ Schrijver, DE McKenzie, DM Rust, EN Parker, F Yuan, G Aulanier, J Zhang, JR Lemen, KP Dere, L Burlaga, LM Green, M Yamada, O Olmedo, P Kumar, R Liu, RL Moore, RP Lepping, S Zharkov, SE Gibson, SK Antiochos, T Hirayama, TP Intrator, VS Titov, W Daughton, X Cheng   +25 more
core   +1 more source

INFLUENCE OF THE SOLAR GLOBAL MAGNETIC FIELD DECREASE ON THE FORMATION AND PARAMETERS OF CORONAL MASS EJECTIONS IN CYCLE 24

, 2021
I. A. Bilenko
openalex   +1 more source

Ionosphere‐Thermosphere Coupling in the Northern Polar Region During the May 2024 Geomagnetic Superstorm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract The May 2024 superstorm, as the most intense geomagnetic storm since 2003, caused a variety of disturbances in the magnetosphere‐ionosphere‐thermosphere system. This study investigates the long‐lasting electron density depletion in the polar region and the underlying ionosphere‐thermosphere coupling, based on a comprehensive set of ...
Lei Cai, Anita Aikio, G. P. Geethakumari, Heikki Vanhamäki, I. I. Virtanen, Shin‐ichiro Oyama, Yongliang Zhang, Jiaojiao Zhang, Marc Hairston   +8 more
wiley   +1 more source