Results 91 to 100 of about 290,411 (293)

Outer Radiation Belt Dynamics During the October 2012 Storm Revisited: Rapid Inward Radial Transport From a Dynamic Outer Boundary

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Earth's outer radiation belt electron flux is highly variable and can be enhanced by over an order of magnitude over timescales less than one day, as observed during the October 2012 storm. Previous studies of this storm (e.g., Reeves et al., 2013, https://doi.org/10.1126/science.1237743) have invoked local acceleration to explain this ...
L. G. Ozeke   +4 more
wiley   +1 more source

Geomagnetic storms predictions....

open access: yes, 2014
Arecibo Observatory saturday academy student poster.
openaire   +1 more source

Statistical Auroral Absorption Model Parameterized by AE Index

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Energetic electron precipitation, often in association with enhanced geomagnetic activity, leads to increased D‐region ionization in the auroral region causing auroral absorption. A statistical auroral absorption model is presented for high‐latitudes (poleward of 50° magnetic latitude) based on data collected from 2010 to 2019 from 13 wide ...
R. A. D. Fiori   +4 more
wiley   +1 more source

Global MHD Simulations: Magnetosphere–Ionosphere Coupling Dependence on Conductance Model

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Eighty‐five geomagnetic storms were simulated with the space weather modeling framework Geospace model using two different ionospheric conductance models. One set used the legacy conductances within the Ridley ionosphere model, while the other set used the newly developed conductance model for extreme events conductance model.
T. I. Pulkkinen   +9 more
wiley   +1 more source

The 10 October 2024 geomagnetic storm may have caused the premature reentry of a Starlink satellite

open access: yesFrontiers in Astronomy and Space Sciences
In 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

Geoelectric Field Evaluation During the September 2017 Geomagnetic Storm: MA.I.GIC. Model

open access: yesSpace Weather, 2019
The space environment near Earth is constantly subjected to changes in the solar wind flow generated at the Sun. Examples of this variability are the occurrence of powerful solar disturbances, such as coronal mass ejections (CMEs).
Mirko Piersanti   +4 more
semanticscholar   +1 more source

Evaluating Multipoint Sampling of Global‐Scale High‐Latitude Electrodynamics by the Geospace Dynamics Constellation

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract The Geospace Dynamics Constellation (GDC) mission aims to investigate the dynamic coupling between the magnetosphere, ionosphere, and thermosphere by resolving key spatiotemporal processes at scales ranging from local to global. A key aspect is GDC's ability to reconstruct hemispheric‐scale high‐latitude electrodynamics with comprehensive ...
J. S. Shim   +6 more
wiley   +1 more source

The Probability of the May 2024 Geomagnetic Superstorm

open access: yesSpace Weather
In 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

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