Results 21 to 30 of about 18,323 (219)
The presence of large sunspots near the central solar meridian at the times of major geomagnetic storms [PDF]
Annales Geophysicae, 2009 A further study is made of the validity of a technique developed by the authors to identify historical occurrences of intense geomagnetic storms, which is based on finding approximately coincident observations of sunspots and aurorae recorded in East ...
D. M. Willis +3 more
doaj +1 more source
Energetic Particle Precipitation during Extreme Space Weather Events [PDF]
E3S Web of Conferences, 2020 Here we provide a selection of extreme geomagnetic storms of the last century based on NOAA classification which lead to the energetic particle precipitation (EPP).
Yakovchuk Olesya, Mironova Irina
doaj +1 more source
Statistical study on interplanetary drivers behind intense geomagnetic storms and substorms
Earth and Planetary Physics, 2019 Geomagnetic storms and substorms play a central role in both the daily life of mankind and in academic space physics. The profiles of storms, especially their initial phase morphology and the intensity of their substorms under different interplanetary ...
Tian Tian +5 more
doaj +1 more source
Space Weather, 2023 Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects.
Xiaomin Luo +4 more
doaj +1 more source
Width of plasmaspheric plumes related to the level of geomagnetic storm intensity [PDF]
Annales 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
Relationship Between Geomagnetic Storms and Auroral/Magnetospheric Substorms: Early Studies
Frontiers in Astronomy and Space Sciences, 2020 This paper describes a short story of how I learned in early days in space physics (1960–1970) that there are the direct and feed-back relationships between geomagnetic storms and auroral/magnetospheric substorms.
Syun-Ichi Akasofu
doaj +1 more source
A New Method for Predicting Non‐Recurrent Geomagnetic Storms
Space Weather, 2023 Predicting non‐recurrent geomagnetic storms caused by Coronal Mass Ejection (CME) is important and necessary for space weather forecasting. Previous studies have shown that it is feasible to predict non‐recurrent geomagnetic storms by reconstructing ...
Cong Wang +4 more
doaj +1 more source
Space weather and dangerous phenomena on the Earth: principles of great geomagnetic storms forcasting by online cosmic ray data [PDF]
Annales Geophysicae, 2005 According to NOAA space weather scales, geomagnetic storms of scales G5 (3-h index of geomagnetic activity Kp=9), G4 (Kp=8) and G3 (Kp=7) are dangerous for satellites, aircrafts, and even for technology on the ground (influence on power systems, on ...
L. I. Dorman, L. I. Dorman
doaj +1 more source
IET Generation, Transmission & Distribution, 2022 When studying the harm of geomagnetic storms to the power system, the focus is often placed on the influence of transformers reactive power loss (GIC‐Q) caused by geomagnetic induced current (GIC) on voltage fluctuation.
Zezhong Wang, Yuan Si, Lianguang Liu
doaj +1 more source
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 +9 more
doaj +1 more source