Results 11 to 20 of about 18,451 (250)

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   +2 more sources

What is a geomagnetic storm?

open access: yesJournal of Geophysical Research: Space Physics, 1994
After a brief review of magnetospheric and interplanetary phenomena for intervals with enhanced solar wind‐magnetosphere interaction, an attempt is made to define a geomagnetic storm as an interval of time when a sufficiently intense and long‐lasting interplanetary convection electric field leads, through a substantial energization in the magnetosphere‐
Gonzalez, W.   +6 more
openaire   +5 more sources

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

Width of plasmaspheric plumes related to the level of geomagnetic storm intensity [PDF]

open access: yesAnnales Geophysicae, 2022
The plume is a plasma region in the magnetosphere that is detached from the main plasmasphere. It significantly contributes to the dynamic processes in both the inner and outer magnetosphere.
Z. Yang   +7 more
doaj   +1 more source

Extreme geomagnetic disturbances due to shocks within CMEs [PDF]

open access: yes, 2015
We report on features of solar wind-magnetosphere coupling elicited by shocks propagating through coronal mass ejections (CMEs) by analyzing the intense geomagnetic storm of 6 August 1998.
Baker   +28 more
core   +2 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

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

Statistical nature of geomagnetic storms [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 1997
On the basis of geomagnetic activity indices and solar wind parameters, a superposed epoch analysis has been conducted for more than 300 geomagnetic storms. The intensity of magnetic storms is found to depend on the duration of the main phase; larger storms have longer timescales.
N. Yokoyama, Y. Kamide
openaire   +1 more source

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