Results 31 to 40 of about 290,411 (293)

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

From the Sun to Earth: effects of the 25 August 2018 geomagnetic storm

open access: yesAnnals of Geophysics, 2020
. On 25 August 2018 the interplanetary counterpart of the 20 August 2018 coronal mass ejection (CME) hit Earth, giving rise to a strong G3 geomagnetic storm. We present a description of the whole sequence of events from the Sun to the ground as well as a
M. Piersanti   +11 more
semanticscholar   +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

Characteristics and Importance of “ICME-in-sheath” Phenomenon and Upper Limit for Geomagnetic Storm Activity [PDF]

open access: yesAstrophysical Journal, 2020
As an important source for large geomagnetic storms, an “ICME-in-sheath” is a completely shocked interplanetary coronal mass ejection (ICME) stuck in the sheath between a shock and host ejecta.
Ying D. Liu, Chong Chen, Xiaowei Zhao
semanticscholar   +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

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

Characteristics of a Gradual Filament Eruption and Subsequent CME Propagation in Relation to a Strong Geomagnetic Storm [PDF]

open access: yesAstrophysical Journal, 2019
An unexpected strong geomagnetic storm occurred on 2018 August 26, which was caused by a slow coronal mass ejection (CME) from a gradual eruption of a large quiet-region filament. We investigate the eruption and propagation characteristics of this CME in
Chong Chen   +5 more
semanticscholar   +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

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

Degradation of Kinematic PPP of GNSS Stations in Central Europe Caused by Medium-Scale Traveling Ionospheric Disturbances During the St. Patrick's Day 2015 Geomagnetic Storm

open access: yesRemote Sensing, 2020
In solar cycle 24, the strongest geomagnetic storm took place on March 17, 2015, when the geomagnetic activity index was as high as -223 nT. To verify the impact that the storm had on the Global Navigation Satellite System (GNSS)’s positioning accuracy ...
M. Poniatowski, G. Nykiel
semanticscholar   +1 more source

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