Study of thermospheric wind variation during pulsating aurora
Project/Area Number |
24540478
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Space and upper atmospheric physics
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Research Institution | Nagoya University |
Principal Investigator |
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Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | オーロラ / 熱圏 / 電離圏 / 磁気圏 / 光学観測 / EISCAT / ノルウェー / 国際共同観測研究 / 北極域 / 脈動オーロラ / リモートセンシング / 国際研究者交流 |
Outline of Final Research Achievements |
We investigated polar thermospheric wind variations during pulsating aurora with focus on recovery phase of the auroral substorm. For many years, it had been considered that amount of the energy dissipation at the recovery phase was too small to generate wind variations in the polar thermosphere. However, our observational activities with high-sensitive optical instruments at Tromsø, Norway found larger amplitudes than the predicted by the present theory. Analysis using data since January 2009 showed that the wind variations had a tendency to appear in the darker area and the edge of the auroral patch at the recovery phase.
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Report
(4 results)
Research Products
(92 results)
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[Journal Article] Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observation2015
Author(s)
Y. Miyoshi, S. Oyama, S. Saito, S. Kurita, H. Fujiwara, R. Kataoka, Y. Ebihara, C. Kletzing, G. Reeves, O. Santolik, M. Clilverd, C. Rodger, E. Turunen, and F. Tsuchiya
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Journal Title
J. Geophys. Res. Space Physics
Volume: 120
Issue: 4
Pages: 1-13
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Auroral fragmentation into patches2014
Author(s)
Shiokawa, K., A. Hashimoto, T. Hori, K. Sakaguchi, Y. Ogawa, E. Donovan, E. Spanswick, M. Connors, Y. Otsuka, S. Oyama, S. Nozawa, and K. McWilliams
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Journal Title
J. Geophys. Res. Space Physics
Volume: 119
Issue: 10
Pages: 8249-8261
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] A case study of gravity wave dissipation in the polar MLT region using sodium LIDAR and radar data2014
Author(s)
Takahashi, T., S. Nozawa, M. Tsutsumi, C. Hall, S. Suzuki, T. T. Tsuda, T. D. Kawahara, N. Saito, S. Oyama, S. Wada, T. Kawabata, H. Fujiwara, A. Brekke, A. Manson, A. Meek, and R. Fujii
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Journal Title
Annales Geophysicae
Volume: 32
Issue: 10
Pages: 1195-1205
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Approximate forms of daytime ionospheric conductance2014
Author(s)
Ieda, A., S. Oyama, H. Vanhamäki, R. Fujii, A. Nakamizo, O. Amm, T. Hori, M. Takeda, G. Ueno, A. Yoshikawa, R. J. Redmon, W. F. Denig, Y. Kamide, and N. Nishitani
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Journal Title
Journal of Geophysical Research
Volume: 119
Issue: 12
Pages: 10397-10415
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Decrease in sodium density observed during auroral particle precipitation over Tromsø, Norway2013
Author(s)
T. T. Tsuda, S. Nozawa, T. D. Kawahara, T. Kawabata, N. Saito, S . Wada, Y. Ogawa, S. Oyama, C. M . Hall, M. Tsutsumi, M. K. Ejiri , S. Suzuki, T. Takahashi, and T . Nakamura
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Journal Title
Geophys. Res. Lett.
Volume: 40
Issue: 17
Pages: 4486-4490
DOI
Related Report
Peer Reviewed
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[Journal Article] Mean winds, tides, and quasi-2 day waves above Bear Island2012
Author(s)
Nozawa, S., C. M. Hall, M. Tsutsumi, A. Brekke, Y. Ogawa, T. T. Tsuda, S. Oyama, and R. Fujii
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Journal Title
J. Atmos. Solar-Terr. Phys.
Volume: 90
Pages: 26-44
DOI
Related Report
Peer Reviewed
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[Presentation] 人工衛星-地上観測による脈動オーロラの総合観測2015
Author(s)
三好 由純, 大山 伸一郎, 齊藤 慎司, 栗田 怜, 藤原 均, 片岡 龍峰, 海老原 祐輔, Kletzing Craig, Reeves Geoff, Santolik Ondrej, Clilverd Mark, Rodger Craig, Turunen Esa, 土屋 史紀
Organizer
日本地球惑星科学連合2015年大会
Place of Presentation
千葉・幕張
Year and Date
2015-05-28
Related Report
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[Presentation] 脈動オーロラ時に見られる広いエネルギー帯の電子散乱と中層大気への影響について2015
Author(s)
三好 由純, 大山 伸一郎, 齊藤 慎司, 栗田 怜, 藤原 均, 片岡 龍峰, 海老原 祐輔, Kletzing Craig, Reeves Geoff, Santolik Ondrej, Clilverd Mark, Rodger Craig, Turunen Esa, 土屋 史紀
Organizer
日本地球惑星科学連合2015年大会
Place of Presentation
千葉・幕張
Year and Date
2015-05-25
Related Report
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[Presentation] Lower-thermospheric winds and auroral fragmentation into patches at the substorm recovery phase2015
Author(s)
Shin-ichiro Oyama, Kazuo Shiokawa, Yoshizumi Miyoshi, Keisuke Hosokawa, Brenton J. Watkins, Junichi Kurihara, and Takuo T. Tsuda
Organizer
GRAND CHALLENGE BRAIN STORMING SESSION, IN THEORY, NUMERICAL, EXPERIMENTAL, TECHNOLOGY AND INSTRUMENTATION, FOR ADVANCING COORDINATED GROUND AND SOUNDING ROCKET MISSIONS
Place of Presentation
神奈川・相模原
Year and Date
2015-01-13
Related Report
Invited
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[Presentation] Auroral Fragmentation Into Patches During the Substorm Recovery Phase2014
Author(s)
Kazuo Shiokawa, A. Hashimoto, T. Hori, K. Sakaguchi, Y. Ogawa, E. Donovan, E. Spanswick, M. Connors, Y. Otsuka, S. Oyama, S. Nozawa, and K. McWilliams
Organizer
ICS-12
Place of Presentation
三重・伊勢志摩
Year and Date
2014-11-10 – 2014-11-14
Related Report
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[Presentation] 昼間電離圏の電気伝導度比2014
Author(s)
家田 章正, 大山 伸一郎, 藤井 良一, 中溝 葵, 堀 智昭, 吉川 顕正, 西谷 望
Organizer
日本地球惑星科学連合2020年大会
Place of Presentation
横浜
Year and Date
2014-04-28 – 2014-05-02
Related Report
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[Presentation] Auroral fragmentation2013
Author(s)
Kazuo Shiokawa, Ayumi Hashimoto, Kaori Sakaguchi, Yasunobu Ogawa, Eric Donovan, Emma Spanswick, Martin Connors, Yuichi Otsuka, Shin-ichiro Oyama, Satonori Nozawa
Organizer
地球電磁気・地球惑星圏学会
Place of Presentation
高知
Related Report
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[Presentation] Auroral fragmentation due to macroscopic pressure-driven instability2013
Author(s)
Shiokawa, K., A. Hashimoto, K. Sakaguchi, Y. Ogawa, E. Donovan, E. Spanswick, M. Connors, Y. Otsuka, S. Oyama, S. Nozawa
Organizer
American Geophysical Union Fall meeting 2013
Place of Presentation
San Francisco, USA
Related Report
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[Presentation] SODIUM DENSITY VARIATION DURING AURORAL PARTICLE PRECIPITATIONS2013
Author(s)
T. T. Tsuda, S. Nozawa, T. D. Kawahara, T. Kawabata, N. Saito, S. Wada, S. Oyama, Y. Ogawa, S. Suzuki, T. Takahashi, T. Nakamura
Organizer
Third International Symposium on the Arctic Research
Place of Presentation
Tokyo
Related Report
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[Presentation] CHARACTERISTICS OF THE MESOSPHERIC GRAVITY WAVES DERIVED FROM OH AIRGLOW IMAGES AT TROMSOE, NORWAY2013
Author(s)
S. Oyama, M. K. Ejir, S. Suzuki, K. Shiokawa, T. Nakamura, M. Tsutsumi, Y. Tomikawa, T. T. Tsuda, S. Nozawa, T. Takahashi
Organizer
Third International Symposium on the Arctic Research
Place of Presentation
Tokyo
Related Report
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[Presentation] Researching activity of the mesospheric gravity wave with optical instruments at Tromsoe, Norway2013
Author(s)
S. Oyama, S. Suzuki, K. Shiokawa, M. K. Ejiri, T. Nakamura, M. Tsutsumi, Y. Tomikawa, T. T. Tsuda, S. Nozawa, and T. Takahashi
Organizer
Antarctic Gravity Wave Imaging Network workshop
Place of Presentation
Tokyo
Related Report
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[Presentation] トロムソナトリウムライダーを用いた極域中間圏・下部熱圏における大気重力波の上方伝搬の研究2012
Author(s)
高橋透, 野澤悟徳, 堤雅基, 津田卓雄, 川原琢也, 斎藤徳人, 大山伸一郎, 和田智之, 川端哲也, 藤原均, Brekke Asgeir, Hall Chris, 藤井良一
Organizer
日本地球惑星科学連合2012年大会
Place of Presentation
幕張
Related Report
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[Presentation] 極域中間圏・下部熱圏における大気重力波の上方伝搬過程の研究2012
Author(s)
高橋透, 野澤 悟徳, 堤 雅基, 津田 卓雄, 大山 伸一郎, 川原 琢也, 斎藤 徳人, 和田 智之, 鈴木 臣, 川端 哲也, 藤原 均, Brekke Asgeir, Hall Chris, 藤井 良一
Organizer
地球電磁気・地球惑星圏学会
Place of Presentation
札幌
Related Report
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[Presentation] 極域MLT領域における大気重力波の上方伝搬阻害過程の特定2012
Author(s)
高橋透, 野澤悟徳, 堤雅基, 津田卓雄, 大山伸一郎, 川原琢也, 斎藤徳人, 和田智之, 川端哲也, 鈴木臣, 藤原均, Asgeir Brekke, Chris Hall, 藤井良一
Organizer
第3回極域科学シンポジウム
Place of Presentation
立川
Related Report
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