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Impulse-driven oscillations of near-Earth magnetosphere

Authors

Sato,  Hiroatsu
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Pécseli,  Hans
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Trulsen,  Jan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Sandholt,  Per Even
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Farrugia,  Charles
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Sato, H., Pécseli, H., Trulsen, J., Sandholt, P. E., Farrugia, C. (2023): Impulse-driven oscillations of near-Earth magnetosphere, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3155


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020537
Abstract
We present that a simple model based on magnetic image arguments suffices to give a convincing insight into both the basic static as well as some transient dynamic properties of the near-Earth’s magnetosphere, particularly accounting for damped oscillations being excited in response to impulsive perturbations. The parameter variations of the frequency are given. Qualitative results can also be obtained for heating due to the compression of the radiation belts. The properties of this simple dynamic model for the solar wind–magnetosphere interaction are discussed and compared to observations. In spite of its simplicity, the model gives convincing results concerning the magnitudes of the near-Earth’s magnetic and electric fields. The database contains ground-based and satellite observation in response to shocks in the solar wind.References:Børve et al., “Minute-Scale Period Oscillations of the Magnetosphere”; Sato et al., “Impulse-Driven Oscillations of the near-Earth’s Magnetosphere.”Sato, Hiroatsu, Hans Pécseli, Jan Trulsen, Per Even Sandholt, and Charles Farrugia. “Impulse-Driven Oscillations of the near-Earth’s Magnetosphere.” Annales Geophysicae 40, no. 6 (November 9, 2022): 641–63. https://doi.org/10.5194/angeo-40-641-2022.