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 › Article › peer-review

9 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).

Supplementary Information: The online version contains supplementary material available at 10.1007/s11214-021-00796-w.

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 1 2021

Bibliographical note

Funding Information:
The work of RK was supported by JSPS Kakenhi (25302006, 15H02628, 16H06286). C.C. Chaston was supported by ISSI and through NASA grant NNX17AI55G. T.-H. Watanabe was supported by ISSI and by JSPS KAKENHI Grant Number JP16H04086 and JP17H01177. D.K. Whiter was supported by ISSI and NERC (UK) through grant NE/S015167/1. Movies 4, 6 and 7 are from the ASK instrument which has been funded by PPARC, STFC (PP/C502614/1) and NERC (NE/H024433/1, NE/N004051/1) of the United Kingdom and Vetenskapsrådet of Sweden. The authors wish to thank the International Space Science Institute ISSI-Bern for organization of this review and for financial support of the team meeting.

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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10.1007/s11214-021-00796-w

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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).Supplementary Information: The online version contains supplementary material available at 10.1007/s11214-021-00796-w.",

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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",

note = "Funding Information: The work of RK was supported by JSPS Kakenhi (25302006, 15H02628, 16H06286). C.C. Chaston was supported by ISSI and through NASA grant NNX17AI55G. T.-H. Watanabe was supported by ISSI and by JSPS KAKENHI Grant Number JP16H04086 and JP17H01177. D.K. Whiter was supported by ISSI and NERC (UK) through grant NE/S015167/1. Movies 4, 6 and 7 are from the ASK instrument which has been funded by PPARC, STFC (PP/C502614/1) and NERC (NE/H024433/1, NE/N004051/1) of the United Kingdom and Vetenskapsr{\aa}det of Sweden. The authors wish to thank the International Space Science Institute ISSI-Bern for organization of this review and for financial support of the team meeting. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.",

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AU - Murase, Kiyoka

AU - Sakanoi, Takeshi

AU - Semeter, Joshua

AU - Watanabe, Tomo Hiko

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N2 - 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.

AB - 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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Small-Scale Dynamic Aurora

Abstract

Bibliographical note

Keywords

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