Results 1 to 10 of about 1,541 (175)

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

Journal 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, Bolarinwa Adekoya, Chizurumoke Michael, Sofiat Adekoya, Omolara Adenuga, Semiu Kareem, Hamid Oladunjoye, Abayomi Ajetunmobi, Oyindamola Williams, Damilola Ogundele   +9 more
doaj   +1 more source

Statistical nature of geomagnetic storms [PDF]

Journal 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

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

Universe, 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, Meng Sun, Jingyuan Li, Kedeng Zhang, Hua Zhang, Xiaojun Xu, Xinhua Zhao   +6 more
doaj   +1 more source

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

Frontiers 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, Jingrun Chen, Chaoling Tang, Chaoling Tang, Chaoling Tang, Xinxin Chu   +5 more
doaj   +1 more source

ASSESSMENT OF THE SEVERE GEOMAGNETIC STORM ON MAY 10-11, 2024 EFFECTS ON THE GEOMAGNETIC FIELD AND IONOSPHERE OVER THE INDONESIAN REGION

Rudarsko-geološko-naftni Zbornik
The severe geomagnetic storm on May 11, 2024, is the largest space weather phenomenon in the 25th solar cycle. This paper presents the impact of that severe geomagnetic storm (Dst = -412 nT) on the geomagnetic field and ionosphere over Indonesia ...
Anwar Santoso, Sismanto Sismanto, Rhorom Priyatikanto, Eddy Hartantyo, Emanuel Sungging Mumpuni, La Ode Muhammad Musafar Kilowasid, Abdul Rachman, Fitri Nuraeni, Siska Filawati, Erlansyah Erlansyah, Dadang Nurmali   +10 more
doaj   +1 more source

Neutral winds in the lower thermosphere observed by WINDII during the April 4–5th, 1993 storm

Geophysical Research Letters, 2000
Data from a major geomagnetic storm in April 1993 were selected for the first WINDII study of storm‐induced neutral winds in the lower thermosphere between 90 and 200 km.
Shengpan P. Zhang, Gordon G. Shepherd
doaj   +1 more source

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

International 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, Doua Allain Gnabahou, Sibri Alphonse Sandwidi, Frédéric Ouattara   +3 more
doaj   +1 more source

After-effects of geomagnetic storms: statistical analysis and theoretical explanation

Solar-Terrestrial Physics, 2018
Our previous studies have shown the presence of daytime positive electron density disturb-ances during several days after the start of the recovery phase.
Ratovsky K.G., Klimenko M.V., Klimenko V.V., Chirik N.V., Korenkova N.A., Kotova D.S.   +5 more
doaj   +1 more source

Spremembe v gostoti energije magnetnega polja Zemlje na observatoriju PIA, Slovenija, med geomagnetno nevihto G5 11. maja 2024 (= Changes in the energy density of the Earth's magnetic field at the PIA, Slovenia, observatory during the G5 Geomagnetic Storm on May 11, 2024)

Geodetski Vestnik
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

Influence of a geomagnetic storm on geo-resistivity observation and analysis of its physical mechanism

地震科学进展
Based on observation data from five survey points within the Jilin regional geo-resistivity observation network, this study systematically analyzes the influence of a geomagnetic storm event with Kp index of 9 that occurred in May 2024 on ground ...
Hongjun Shi, Zhuoshi Wang, Weinan Zhu, Ning Li   +3 more
doaj   +1 more source