Small-Scale Dynamic Aurora

Small-scale dynamic auroras have spatial scales of a few km or less, and temporal scales of a few seconds or less, which visualize the complex interplay among charged particles, Alfvén waves, and plasma instabilities working in the magnetosphere-ionosphere coupled regions. We summarize the observed...

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Detalles Bibliográficos
Autores principales: Kataoka, Ryuho, Chaston, Christopher C., Knudsen, David, Lynch, Kristina A., Lysak, Robert L., Song, Yan, Rankin, Robert, Murase, Kiyoka, Sakanoi, Takeshi, Semeter, Joshua, Watanabe, Tomo-Hiko, Whiter, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8550089/
https://www.ncbi.nlm.nih.gov/pubmed/34720215
http://dx.doi.org/10.1007/s11214-021-00796-w
Descripción
Sumario:Small-scale dynamic auroras have spatial scales of a few km or less, and temporal scales of a few seconds or less, which visualize the complex interplay among charged particles, Alfvén waves, and plasma instabilities working in the magnetosphere-ionosphere coupled regions. We summarize the observed properties of flickering auroras, vortex motions, and filamentary structures. We also summarize the development of fundamental theories, such as dispersive Alfvén waves (DAWs), plasma instabilities in the auroral acceleration region, ionospheric feedback instabilities (IFI), and the ionospheric Alfvén resonator (IAR). SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11214-021-00796-w.

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