Results 31 to 40 of about 18,291 (244)
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 +10 more
doaj +1 more source
Extreme geomagnetic disturbances due to shocks within CMEs [PDF]
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
Geomagnetic Storm Related to Disturbance Storm Time Indices
The magnitude of the Disturbance Storm Time (Dst) index varied in relation to the extremely small negative integer that indicated a large geomagnetic storm. The large sharpened variants of negative Dst indices could describe the detailed features of a geomagnetic storm.
openaire +2 more sources
Auroral electrojets during geomagnetic storms [PDF]
On the basis of digital magnetometers from the International monitor auroral geomagnetic effects (IMAGE) and European incoherent scatter (EISCAT) meridional chains in Scandinavia dynamics of the eastward and westward electrojets during the main phase of magnetic storms are considered.
Y. I. Feldstein +3 more
openaire +1 more source
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
A study of geomagnetic storms [PDF]
The interplanetary energy flux is estimated on the basis of the Poynting flux and its variations with the rate of energy dissipation in terms of: (1) the ring-current particle injection, (2) Joule dissipation in the ionosphere, and (3) auroral particle injection for 15 major geomagnetic storms.
Paul Perreault, S.-I. Akasofu
openaire +1 more source
We study the solar sources of an intense geomagnetic storm of solar cycle 23 that occurred on 20 November 2003, based on ground- and space-based multiwavelength observations.
B. Schmieder +34 more
core +1 more source
Probabilistic prediction of geomagnetic storms and the Kp index
Geomagnetic activity is often described using summary indices to summarize the likelihood of space weather impacts, as well as when parameterizing space weather models. The geomagnetic index K p in particular, is widely used for these purposes. Current
Chakraborty Shibaji, Morley Steven Karl
doaj +1 more source
Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling
Abstract The offset between Earth's magnetic and rotational axes introduces a diurnal dependence in the high‐latitude EUV exposure of the northern hemisphere (NH) and southern hemisphere (SH). This variation raises the question: Does the Universal Time (UT) of geomagnetic storm onset impact its geospace consequences?
Kalpesh Ghag +6 more
wiley +1 more source
The Development of the Forbush Decrease and the Geomagnetic Storm Fields [PDF]
Relationships between Forbush decreases and associated geomagnetic storm ...
Akasofu, S.-I., Yoshida, S.
core +2 more sources

