Results 21 to 30 of about 18,451 (250)

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

Quantifying extreme behaviour in geomagnetic activity [PDF]

open access: yes, 2011
Understanding the extremes in geomagnetic activity is an important component in understanding just how severe conditions can become in the terrestrial space environment. Extreme activity also has consequences for technological systems.
Alan W. P. Thomson   +18 more
core   +1 more source

Two Notable Geomagnetic Storms [PDF]

open access: yesNature, 1946
Disturbances of considerable intensity, comprising two distinct geomagnetic storms, occurred during the interval March 23–29, 1946. Displays of the Aurora Borealis have been reported; there was dislocation over long‐distance radio channels and, in the case of the second storm, with submarine‐cable telegraphy.
openaire   +2 more sources

Can Smartphones Detect Geomagnetic Storms? [PDF]

open access: yesSpace Weather, 2022
AbstractSeveral smartphone models on the Android and iOS platforms have been investigated for their ability to detect geomagnetic storms. Although this capability could have scientific application, there is a growing commercial interest in using smartphones for precision location applications not involving the GPS system.
openaire   +2 more sources

Significant Variations of Thermospheric Nitric Oxide Cooling during the Minor Geomagnetic Storm on 6 May 2015

open access: yesUniverse, 2022
Using observations by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on board the TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite and simulations by the TIEGCM (Thermosphere-Ionosphere ...
Zheng Li   +6 more
doaj   +1 more source

Evaluation of E Layer Dominated Ionosphere Events Using COSMIC/FORMOSAT-3 and CHAMP Ionospheric Radio Occultation Data [PDF]

open access: yes, 2020
At certain geographic locations, especially in the polar regions, the ionization of the ionospheric E layer can dominate over that of the F2 layer. The associated electron density profiles show their ionization maximum at E layer heights between 80 and ...
Hoque, Mohammed M.   +3 more
core   +2 more sources

The effect of continuous geomagnetic storms on enhancements of ultrarelativistic electrons in the Earth’s outer radiation belt

open access: yesFrontiers in Astronomy and Space Sciences
Ultrarelativistic electrons (Ek > 3 MeV) are the most energetic electrons in the Earth’s outer radiation belt, which can cause serious damage to equipments on satellites. The evolutions of ultrarelativistic electrons during geomagnetic storm have been
Jingrun Chen   +5 more
doaj   +1 more source

Koudougou (Burkina Faso, Africa), GPS-TEC Response to Recurrent Geomagnetic Storms during Solar Cycle 24 Declining Phase

open access: yesInternational Journal of Geophysics, 2023
In this paper, we presented the effect of moderate geomagnetic storms on the TEC variation at the Koudougou station (Geo Lat 12° 15′ N; Geo Long: -2° 20′ E) in Burkina Faso (Africa) during the descending phase of solar cycle 24.
Saguedo Sawadogo   +3 more
doaj   +1 more source

The Great Space Weather Event during February 1872 Recorded in East Asia

open access: yes, 2018
The study of historical great geomagnetic storms is crucial for assessing the possible risks to the technological infrastructure of a modern society, caused by extreme space-weather events.
Ebihara, Yusuke   +11 more
core   +1 more source

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