Results 61 to 70 of about 121,709 (205)

Global Ionospheric Responses to Four X‐Class Solar Flares in November 2025

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract We investigate global ionospheric responses to four X‐class solar‐disk flares that occurred in November 2025 from the same solar active region, using multi‐instrument observations including GNSS, ionosonde, geomagnetic and GOES solar irradiance data. Pronounced dayside TEC enhancements are observed for three flares (#2 X1.2, #3 X5.1, and #4 X4.
Lei Liu, Shasha Zou
wiley   +1 more source

Reconstructing Equatorial Electron Flux Measurements From Data Collected at Low‐Earth‐Orbit Resolved in Magnetic Local Time

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract We present an ensemble of five artificial neural network (ANN) models, extending and upgrading a previous model that reconstructs >30 keV equatorial electron flux measurements from low‐Earth‐orbit (LEO) satellite observations. We use the global coherent nature of the radiation belts to map data collected from the Polar Orbiting Environmental ...
D. L. Stumbaugh, J. Bortnik
wiley   +1 more source

A Data‐Driven Model of the Geomagnetic Storm Recovery Phase

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract The recovery phase of geomagnetic storms poses a significant challenge for accurate space weather forecasting. Traditional models based on a constant decay rate fail to capture its prolonged and variable duration, leading to uncertainties in predicting impacts on technological systems.
G. Consolini   +5 more
wiley   +1 more source

The driving mechanisms of particle precipitation during the moderate geomagnetic storm of 7 January 2005 [PDF]

open access: yes, 2007
International audienceThe arrival of an interplanetary coronal mass ejection (ICME) triggered a sudden storm commencement (SSC) at ~09:22 UT on the 7 January 2005. The ICME followed a quiet period in the solar wind and interplanetary magnetic field (IMF).
N. Longden   +7 more
core   +2 more sources

Geomagnetic storms predictions....

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

Machine Learning Modeling of Narrow SAID‐Like Spikes in Duskside Subauroral Flows From 11‐Year DMSP Observations

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract Subauroral ion drifts (SAID) are narrow, intense westward plasma flows. However, their narrow latitudinal distribution and possible overlap with broader subauroral flows pose significant challenges for accurate modeling. This study proposes a dual‐modal model that takes magnetic latitude, magnetic local time, day of year, solar F10.7 index ...
Haobo Hu   +6 more
wiley   +1 more source

Spremembe v gostoti energije magnetnega polja Zemlje na observatoriju PIA, Slovenija, med geomagnetno nevihto G5 11. maja 2024 (= Changes in the energy density of the Earth's magnetic field at the PIA, Slovenia, observatory during the G5 Geomagnetic Storm on May 11, 2024)

open access: yesGeodetski Vestnik
Geomagnetic storms are the largest disturbance in the Earth's magnetic field. On May 11, 2024, a geomagnetic storm occurred at the peak of the 25th solar cycle, reaching the highest level (G5) on the planetary scale.
Rudi Čop
doaj   +1 more source

RESPONSE OF BIOLOGICAL SYSTEMS TO GEOMAGNETIC STORMS

open access: yesActa Biomedica Scientifica, 2018
At present, influence of weak magnetic fields associated with solar and geomagnetic activity on biological systems is gaining more interest. Taking into account the accumulated data on the influence of geomagnetic storms on different biological levels ...
A. A. Bazhenov   +4 more
doaj   +1 more source

The May 2024 Storm: The Cusps and Dayside Magnetopause in Simulated Soft X‐Rays

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The coronal mass ejection (CME) arriving at Earth on 10 May 2024 caused the most intense geomagnetic storm in the last two decades, resulting in highly unusual cusp and magnetopause dynamics. We simulate soft X‐Ray emission due to solar wind charge exchange with exospheric neutrals to image the global dayside dynamics, focusing on the impact ...
J. Ng   +12 more
wiley   +1 more source

Analysis for the results of geomagnetic storms measured by Macau Science Satellite-1

open access: yesEarth and Planetary Physics
Strong flares and/or coronal mass ejections (CMEs) could bring us disastrous space weather, destroy crucial technology in space, and cause a large-scale blackout during some extreme cases.
HaiSheng Ji   +4 more
doaj   +1 more source

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