A Characteristic Signature of Magnetospheric Wave-Particle Interactions Found in the Turbulent E-region

Ivarsen, Magnus F.; Miyashita, Yukinaga; St-Maurice, Jean-Pierre; Hussey, Glen C.; Pitzel, Brian; Galeschuk, Draven; Marei, Saif; Horne, Richard B. ORCID: https://orcid.org/0000-0002-0412-6407; Kasahara, Yoshiya; Matsuda, Shoya; Kasahara, Satoshi; Keika, Kunihiro; Miyoshi, Yoshizumi; Yamamoto, Kazuhiro; Shinbori, Atsuki; Huyghebaert, Devin R.; Matsuoka, Ayako; Yokota, Shoichiro; Tsuchiya, Fuminori. 2025 A Characteristic Signature of Magnetospheric Wave-Particle Interactions Found in the Turbulent E-region. Physical Review Letters, 134, 145201. 10, pp. 10.1103/PhysRevLett.134.145201

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Abstract/Summary

Plasma waves in the magnetosphere scatter electrons, causing them to precipitate into Earth’s atmosphere, imparting their temporal characteristics to diffuse auroras. In a case study of conjugate radar and satellite observations, we demonstrate a close and unprecedented association between enhanced electrostatic cyclotron harmonic wave activity in the magnetosphere and the appearance of meter-scale plasma turbulence a few seconds later in the lower ionosphere on nearby magnetic field lines. Such direct structuring of the ionosphere carries implications for our understanding of space weather.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1103/PhysRevLett.134.145201
Date made live:	14 Apr 2025 13:07 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/538682

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