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    Rights statement: Accepted for publication in Journal of Geophysical Research: Space Physics. Copyright 2017 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

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Quasi-biennial oscillation of the ionospheric wind dynamo

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Quasi-biennial oscillation of the ionospheric wind dynamo. / Yamazaki, Yosuke; Liu, Huixin; Sun, Yang-Yi; Miyoshi, Yasunobu; Kosch, Michael Jurgen; Mlynczak, Martin.

In: Journal of Geophysical Research: Space Physics, Vol. 122, No. 3, 03.2017, p. 3553-3569.

Research output: Contribution to journalJournal article

Harvard

Yamazaki, Y, Liu, H, Sun, Y-Y, Miyoshi, Y, Kosch, MJ & Mlynczak, M 2017, 'Quasi-biennial oscillation of the ionospheric wind dynamo', Journal of Geophysical Research: Space Physics, vol. 122, no. 3, pp. 3553-3569. https://doi.org/10.1002/2016JA023684

APA

Yamazaki, Y., Liu, H., Sun, Y-Y., Miyoshi, Y., Kosch, M. J., & Mlynczak, M. (2017). Quasi-biennial oscillation of the ionospheric wind dynamo. Journal of Geophysical Research: Space Physics, 122(3), 3553-3569. https://doi.org/10.1002/2016JA023684

Vancouver

Yamazaki Y, Liu H, Sun Y-Y, Miyoshi Y, Kosch MJ, Mlynczak M. Quasi-biennial oscillation of the ionospheric wind dynamo. Journal of Geophysical Research: Space Physics. 2017 Mar;122(3):3553-3569. https://doi.org/10.1002/2016JA023684

Author

Yamazaki, Yosuke ; Liu, Huixin ; Sun, Yang-Yi ; Miyoshi, Yasunobu ; Kosch, Michael Jurgen ; Mlynczak, Martin. / Quasi-biennial oscillation of the ionospheric wind dynamo. In: Journal of Geophysical Research: Space Physics. 2017 ; Vol. 122, No. 3. pp. 3553-3569.

Bibtex

@article{798a18fd630a437291b47937ba968dc3,
title = "Quasi-biennial oscillation of the ionospheric wind dynamo",
abstract = "The interannual variation of the ionospheric solar quiet (Sq) current system is examined. A dense magnetometer network over Japan enables the accurate determination of the central position of the northern Sq current loop or the Sq current focus, during 1999–2015. It is found that the Sq focus latitude undergoes an interannual variation of ±2° with a period of approximately 28 months, similar to the quasi-biennial oscillation (QBO) in the tropical lower stratosphere. The QBO-like variation of Sq is particularly evident during 2005–2013. No corresponding interannual variability is found in solar extreme ultraviolet radiation. Comparisons with tidal winds, derived from a whole-atmosphere model, reveal that the QBO-like variation of the Sq current focus is highly correlated with the amplitude variations of migrating and nonmigrating diurnal tides in the lower thermosphere. The results suggest that the stratospheric QBO can influence the ionospheric wind dynamo through the QBO modulation of tides.",
keywords = "QBO, geomagnetic daily variation, Sq current system, interannual variability, atmospheric tides, GAIA model",
author = "Yosuke Yamazaki and Huixin Liu and Yang-Yi Sun and Yasunobu Miyoshi and Kosch, {Michael Jurgen} and Martin Mlynczak",
note = "Accepted for publication in Journal of Geophysical Research: Space Physics. Copyright 2017 American Geophysical Union. Further reproduction or electronic distribution is not permitted.",
year = "2017",
month = mar
doi = "10.1002/2016JA023684",
language = "English",
volume = "122",
pages = "3553--3569",
journal = "Journal of Geophysical Research: Space Physics",
issn = "2169-9402",
publisher = "Blackwell Publishing Ltd",
number = "3",

}

RIS

TY - JOUR

T1 - Quasi-biennial oscillation of the ionospheric wind dynamo

AU - Yamazaki, Yosuke

AU - Liu, Huixin

AU - Sun, Yang-Yi

AU - Miyoshi, Yasunobu

AU - Kosch, Michael Jurgen

AU - Mlynczak, Martin

N1 - Accepted for publication in Journal of Geophysical Research: Space Physics. Copyright 2017 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

PY - 2017/3

Y1 - 2017/3

N2 - The interannual variation of the ionospheric solar quiet (Sq) current system is examined. A dense magnetometer network over Japan enables the accurate determination of the central position of the northern Sq current loop or the Sq current focus, during 1999–2015. It is found that the Sq focus latitude undergoes an interannual variation of ±2° with a period of approximately 28 months, similar to the quasi-biennial oscillation (QBO) in the tropical lower stratosphere. The QBO-like variation of Sq is particularly evident during 2005–2013. No corresponding interannual variability is found in solar extreme ultraviolet radiation. Comparisons with tidal winds, derived from a whole-atmosphere model, reveal that the QBO-like variation of the Sq current focus is highly correlated with the amplitude variations of migrating and nonmigrating diurnal tides in the lower thermosphere. The results suggest that the stratospheric QBO can influence the ionospheric wind dynamo through the QBO modulation of tides.

AB - The interannual variation of the ionospheric solar quiet (Sq) current system is examined. A dense magnetometer network over Japan enables the accurate determination of the central position of the northern Sq current loop or the Sq current focus, during 1999–2015. It is found that the Sq focus latitude undergoes an interannual variation of ±2° with a period of approximately 28 months, similar to the quasi-biennial oscillation (QBO) in the tropical lower stratosphere. The QBO-like variation of Sq is particularly evident during 2005–2013. No corresponding interannual variability is found in solar extreme ultraviolet radiation. Comparisons with tidal winds, derived from a whole-atmosphere model, reveal that the QBO-like variation of the Sq current focus is highly correlated with the amplitude variations of migrating and nonmigrating diurnal tides in the lower thermosphere. The results suggest that the stratospheric QBO can influence the ionospheric wind dynamo through the QBO modulation of tides.

KW - QBO

KW - geomagnetic daily variation

KW - Sq current system

KW - interannual variability

KW - atmospheric tides

KW - GAIA model

U2 - 10.1002/2016JA023684

DO - 10.1002/2016JA023684

M3 - Journal article

VL - 122

SP - 3553

EP - 3569

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

SN - 2169-9402

IS - 3

ER -