Results 31 to 40 of about 241,838 (223)

On extreme geomagnetic storms [PDF]

open access: yesJournal of Space Weather and Space Climate, 2014
Extreme geomagnetic storms are considered as one of the major natural hazards for technology-dependent society. Geomagnetic field disturbances can disrupt the operation of critical infrastructures relying on space-based assets, and can also result in terrestrial effects, such as the Quebec electrical disruption in 1989. Forecasting potential hazards is
Cid Tortuero, Consuelo   +4 more
openaire   +3 more sources

Unveiling the Space Weather During the Starlink Satellites Destruction Event on 4 February 2022

open access: yesSpace Weather, 2022
On 4 February 2022, 38 Starlink satellites were destroyed by the geomagnetic storm, which brought significant financial, aerospace and public influences.
Tong Dang   +9 more
doaj   +1 more source

A machine learning-based model for the next 3-day geomagnetic index (Kp) forecast

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The 3-day Kp forecast product is important and necessary for space weather forecasts. There is some essential information that can be obtained from the 3-day Kp forecast product, such as the start time of the geomagnetic storm, the maximum storm level ...
Jingjing Wang   +10 more
doaj   +1 more source

The Variation of Geomagnetic Storm Duration with Intensity [PDF]

open access: yesSolar Physics, 2019
Abstract Variability in the near-Earth solar wind conditions can adversely affect a number of ground- and space-based technologies. Such space-weather impacts on ground infrastructure are expected to increase primarily with geomagnetic storm intensity, but also storm duration, through time-integrated effects.
C. Haines   +4 more
openaire   +1 more source

Potential of Regional Ionosphere Prediction Using a Long Short‐Term Memory Deep‐Learning Algorithm Specialized for Geomagnetic Storm Period

open access: yesSpace Weather, 2021
In our previous study (Moon et al., 2020, https://doi.org/10.3938/jkps.77.1265), we developed a long short‐term memory (LSTM) deep‐learning model for geomagnetic quiet days (LSTM‐quiet) to perform effective long‐term predictions for the regional ...
Jeong‐Heon Kim   +5 more
doaj   +1 more source

A Detection Study of the Ionospheric Total Electron Contents Variations Using GPS Network [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
We established a regional ionospheric model for investigating ionospheric TEC (Total Electron Contents) variations over the Korean Peninsula during major geomagnetic storms.
Byung-Kyu Choi   +2 more
doaj   +1 more source

Analyzing the Ionospheric Irregularities Caused by the September 2017 Geomagnetic Storm Using Ground-Based GNSS, Swarm, and FORMOSAT-3/COSMIC Data near the Equatorial Ionization Anomaly in East Africa

open access: yesRemote Sensing, 2023
Geomagnetic storms are one of the leading causes of ionospheric irregularities, depending on their intensity. The 6–10 September 2017 geomagnetic storm, the most severe geomagnetic event of the year, resulted from an X9 solar flare and a subsequent ...
Alireza Atabati   +6 more
doaj   +1 more source

Ionospheric redistribution during geomagnetic storms [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
The abundance of plasma in the daytime ionosphere is often seen to grow greatly during geomagnetic storms. Recent reports suggest that the magnitude of the plasma density enhancement depends on the UT of storm onset. This possibility is investigated over a 7year period using global maps of ionospheric total electron content (TEC) produced at the Jet ...
Immel, T J, Mannucci, A J
openaire   +2 more sources

A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations

open access: yesSensors, 2020
The Earth’s ionosphere is greatly influenced by geomagnetic activities, especially geomagnetic storms. During a geomagnetic storm, the ionosphere suffers many perturbations, leading to a spatial gradient that are neglected during geomagnetically ...
Yixin Zhang   +4 more
doaj   +1 more source

A Study of the Relationship Between Southward Bz > -10 nT and Storm Time Disturbance Index During Solar Cycle 23

open access: yesJournal of Nigerian Society of Physical Sciences, 2022
Magnetic reconnection can be used for studying the geoeffective processes in the coupled Sun–Solar wind – Magnetosphere dynamics leading to geomagnetic disturbance.
T. W. David   +9 more
doaj   +1 more source

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