Results 91 to 100 of about 18,451 (250)

An Ensemble Multivariate Multiscale Framework for Prediction of Long‐Term Solar Activity With Nonstationary Oscillations

open access: yesEarth and Space Science, Volume 13, Issue 4, April 2026.
Abstract Solar activity is usually characterized by different indices from different perspectives, which are commonly interconnected and contain nonstationary oscillations (NSOs). Given the significant influence of solar activity on space weather, the Earth and humans, it is of great significance to predict solar activity for better understanding not ...
Shan Jiang   +4 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

Auroral zone electron precipitation accompanying a sudden impulse in the geomagnetic field [PDF]

open access: yes
Auroral zone electron precipitation accompanying sudden commencement of geomagnetic ...
Brown, R. R.
core   +1 more source

Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling

open access: yesAGU Advances, Volume 7, Issue 2, April 2026.
Abstract The offset between Earth's magnetic and rotational axes introduces a diurnal dependence in the high‐latitude EUV exposure of the northern hemisphere (NH) and southern hemisphere (SH). This variation raises the question: Does the Universal Time (UT) of geomagnetic storm onset impact its geospace consequences?
Kalpesh Ghag   +6 more
wiley   +1 more source

Dataset of Quiet Space Weather Periods for Ionospheric Studies

open access: yesEarth and Space Science, Volume 13, Issue 4, April 2026.
Abstract The ionosphere is a dynamic environment regularly affected from above and from below. This study identifies periods within the years 2000–2023 when the impact from above, driven by space weather, was minimal. The quiet space weather periods have wide usage for two types of ionospheric studies. At first, studies of isolated space weather events
Šimon Mackovjak   +12 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

Behavior of radiation belts anomalous cosmic radionoise absorption in the aurora zone during the magnetic storms of 12-14 and 20-21 February 1964 [PDF]

open access: yes
Characteristics of radiation belt and ionospheric absorption of cosmic radio noise in auroral zone during geomagnetic ...
Driatskiy, V. M.   +3 more
core   +1 more source

Geomagnetically trapped, albedo and solar energetic particles: trajectory analysis and flux reconstruction with PAMELA

open access: yes, 2016
The PAMELA satellite experiment is providing comprehensive observations of the interplanetary and magnetospheric radiation in the near-Earth environment.
Adriani, O.   +61 more
core   +1 more source

A Computationally Efficient Method for Deriving Instantaneous F2 Layer Peak Parameters From Climatological Maps and TEC Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract International Reference Ionosphere (IRI) and the Ionosphere‐Plasmasphere (IRI‐Plas) models describe monthly median ionospheric conditions. IRI‐Plas, unlike IRI, allows one to include instantaneous Total Electron Content observations (TEC) to adjust the median predictions. The standard IRI‐Plas generates monthly medians of foF2m, hmF2m and TECm
T. L. Gulyaeva   +4 more
wiley   +1 more source

Mid-latitude ionosphere during two great geomagnetic storms

open access: yesAnnals 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

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