Small-Scale Dynamic Aurora

Ryuho Kataoka; Chris Chaston; David Knudsen; Kristina A. Lynch; Robert L. Lysak; Yan Song; Robert Rankin; Kiyoka Murase; Takeshi Sakanoi; Joshua Semeter; Tomo Hiko Watanabe; Daniel Whiter

doi:10.1007/s11214-021-00796-w

Small-Scale Dynamic Aurora

Ryuho Kataoka, Chris Chaston, David Knudsen, Kristina A. Lynch, Robert L. Lysak, Yan Song, Robert Rankin, Kiyoka Murase, Takeshi Sakanoi, Joshua Semeter, Tomo Hiko Watanabe, Daniel Whiter

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Review article › peer-review

10 Scopus citations

Abstract

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).

Original language	English (US)
Article number	17
Journal	Space Science Reviews
Volume	217
Issue number	1
DOIs	https://doi.org/10.1007/s11214-021-00796-w
State	Published - Feb 2021

Bibliographical note

Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.

Keywords

Auroral breakup
Auroral phenomena
Dispersive Alfven waves
Flickering aurora
Ionospheric Alfven resonator
Ionospheric feedback instabilities
Magnetosphere-ionosphere coupled region

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title = "Small-Scale Dynamic Aurora",

abstract = "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, Alfv{\'e}n 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 Alfv{\'e}n waves (DAWs), plasma instabilities in the auroral acceleration region, ionospheric feedback instabilities (IFI), and the ionospheric Alfv{\'e}n resonator (IAR).",

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author = "Ryuho Kataoka and Chris Chaston and David Knudsen and Lynch, {Kristina A.} and Lysak, {Robert L.} and Yan Song and Robert Rankin and Kiyoka Murase and Takeshi Sakanoi and Joshua Semeter and Watanabe, {Tomo Hiko} and Daniel Whiter",

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AU - Kataoka, Ryuho

AU - Chaston, Chris

AU - Knudsen, David

AU - Lynch, Kristina A.

AU - Lysak, Robert L.

AU - Song, Yan

AU - Rankin, Robert

AU - Murase, Kiyoka

AU - Sakanoi, Takeshi

AU - Semeter, Joshua

AU - Watanabe, Tomo Hiko

AU - Whiter, Daniel

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KW - Auroral breakup

KW - Auroral phenomena

KW - Dispersive Alfven waves

KW - Flickering aurora

KW - Ionospheric Alfven resonator

KW - Ionospheric feedback instabilities

KW - Magnetosphere-ionosphere coupled region

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Small-Scale Dynamic Aurora

Abstract

Bibliographical note

Keywords

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