Results 61 to 70 of about 121,709 (205)
Global Ionospheric Responses to Four X‐Class Solar Flares in November 2025
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
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
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]
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....
Arecibo Observatory saturday academy student poster.
openaire +1 more source
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
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
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
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
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

