Results 71 to 80 of about 1,541 (175)
The 10 October 2024 geomagnetic storm may have caused the premature reentry of a Starlink satellite
Frontiers in Astronomy and Space SciencesIn this short communication, we qualitatively analyze possible effects of the 10 October 2024 geomagnetic storm on accelerating the reentry of a Starlink satellite from very low-Earth orbit (VLEO). The storm took place near the maximum of solar cycle (SC)
Denny M. Oliveira +4 more
doaj +1 more source
A Deep Ensemble Transformer Model for Global Ionosphere Prediction and Uncertainty Quantification
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.Abstract Accurate global ionospheric forecasting is important for various purposes, from geophysical research to practical applications, including real‐time precise positioning and navigation. Existing studies primarily focus solely on deterministic predictions and often overlook uncertainty quantification.
Shuyin Mao, Junyang Gou, Benedikt Soja
wiley +1 more source
WACCM‐RR: A Regionally‐Refined Version of the Whole Atmosphere Community Climate Model
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.Abstract We introduce the Whole Atmosphere Community Climate Model with Regional Refinement (WACCM‐RR) and study the impact of directly resolving gravity waves (GWs) in the mesosphere and lower thermosphere (MLT; 70–140 km). Two simulations of 2010 are compared: “Non‐RR” is a standard WACCM case with a horizontal resolution of ∼1° (111 km) globally ...
M. M. Kupilas +7 more
wiley +1 more source
The Probability of the May 2024 Geomagnetic Superstorm
Space WeatherIn May 2024, a series of coronal mass ejections resulted in the first “severe” (G4‐level) geomagnetic storm watch in nearly 20 years. This event evolved into a significant space weather event, including an “extreme” (G5) geomagnetic storm, moderate (S2 ...
S. Elvidge, D. R. Themens
doaj +1 more source
On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer
Radio Science, Volume 61, Issue 6, June 2026.Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé +4 more
wiley +1 more source
Mid-latitude ionosphere during two great geomagnetic storms
Annals of Geophysics, 1996 The ionospheric disturbances observed at many European ionosonde stations in association with the severe geomagnetic storms occurring on 19-20 December 1980 and 11-12 April 1981 were investigated by using the available ionospheric and geomagnetic data ...
L. R. Cander, I. M. Vasiljevic
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract Ejections of magnetized plasma from the Sun, known as coronal mass ejections, can drive major geomagnetic activity if Earth‐directed, and are therefore monitored by space weather forecasters. The current focus being the forecast of the arrival time of a coronal mass ejection at Earth and the level of geomagnetic impact.
L. M. Green +7 more
wiley +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract Techniques developed in the past few years enable the derivation of multiscale ion convection and particle precipitation patterns from high‐resolution ground‐based observations, and it has been shown in previous studies that such multiscale geomagnetic forcing can contribute significantly to ionospheric and thermospheric disturbances.
Cheng Sheng +6 more
wiley +1 more source
A Theory of Polar Geomagnetic Storms [PDF]
Geophysical Journal International, 1960 A third part of the hydromagnetic theory of geomagnetic storms is obtained. The first two parts deal with the storm-time variations Dst in terms of isotropically propagating hydromagnetic compression (first phase) and rarefaction (main phase) of the geomagnetic field and its plasma.
openaire +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract This study develops a semi‐empirical framework for Dst index forecasting by integrating the PPMLR‐MHD model of Earth's magnetosphere with four established empirical models (Burton, UCB, AK2, and Wang). The framework partitions the physics: global magnetopause and tail currents are simulated by MHD, while the ring current contribution is ...
Jiawen Yue +6 more
wiley +1 more source