論文 - 大山 伸一郎
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IMF Dependence of Midnight Bifurcation in the Thermospheric Wind at an Auroral Latitude Based on Nine Winter Measurements in Tromso, Norway Open Access
Oyama S., Hosokawa K., Vanhamaki H., Aikio A., Sakanoi T., Cai L., Virtanen I. I., Shiokawa K., Nishitani N., Shinbori A., Ogawa Y.
GEOPHYSICAL RESEARCH LETTERS 50 巻 ( 14 ) 2023年7月
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Geomagnetic activity dependence and dawn-dusk asymmetry of thermospheric winds from 9-year measurements with a Fabry-Perot interferometer in Tromso, Norway Open Access
Oyama Shin-ichiro, Aikio Anita, Sakanoi Takeshi, Hosokawa Keisuke, Vanhamaki Heikki, Cai Lei, Virtanen Ilkka, Pedersen Marcus, Shiokawa Kazuo, Shinbori Atsuki, Nishitani Nozomu, Ogawa Yasunobu
EARTH PLANETS AND SPACE 75 巻 ( 1 ) 2023年5月
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Ionospheric modulation by EMIC wave-driven proton precipitation: Observations and simulations 招待有り 査読有り 国際共著 Open Access
(101) Tian, X., Y. Yu, F. Gong, L. Ma, J. Cao, S. C. Solomon, P. R. Shreedevi, K. Shiokawa, Y. Otsuka, S. Oyama, Y. Miyoshi
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2023年1月
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Multi-event analysis of magnetosphere-ionosphere coupling of nighttime medium-scale traveling ionospheric disturbances from the ground and the Arase satellite 招待有り 査読有り Open Access
(100) Kawai, K., K. Shiokawa, Y. Otsuka, S. Oyama, M. G. Connors, Y. Kasahara, Y. Kasaba, S. Nakamura, F. Tsuchiya, A. Kumamoto, A. Shinbori, A. Matsuoka, I. Shinohara, and Y. Miyoshi
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2023年1月
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A statistical study of longitudinal extent of Pc1 pulsations using seven PWING ground stations at subauroral latitudes 招待有り 査読有り Open Access
(99) Liu, J., K. Shiokawa, S. Oyama, Y. Otsuka, C. W. Jun, M. Nose, T. Nagatsuma, K. Sakaguchi, A. Kadokura, M. Ozaki, M. Connors, D. Baishev, N. Nishitani, A. Oinats, V. Kurkin and T. Raita
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2023年1月
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Plasma-neutral gas interactions in various space environments: Assessment beyond simplified approximations as a Voyage 2050 theme Open Access
Yamauchi Masatoshi, De Keyser Johan, Parks George, Oyama Shin-ichiro, Wurz Peter, Abe Takumi, Beth Arnaud, Daglis Ioannis A., Dandouras Iannis, Dunlop Malcolm, Henri Pierre, Ivchenko Nickolay, Kallio Esa, Kucharek Harald, Liu Yong C-M, Mann Ingrid, Marghitu Octav, Nicolaou Georgios, Rong Zhaojin, Sakanoi Takeshi, Saur Joachim, Shimoyama Manabu, Taguchi Satoshi, Tian Feng, Tsuda Takuo, Tsurutani Bruce, Turner Drew, Ulich Thomas, Yau Andrew, Yoshikawa Ichiro
EXPERIMENTAL ASTRONOMY 54 巻 ( 2-3 ) 頁： 521 - 559 2022年12月
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Thermospheric wind response to a sudden ionospheric variation in the trough: event at a pseudo-breakup during geomagnetically quiet conditions 査読有り 国際共著 Open Access
Oyama, Si., Vanhamäki, H., Cai, L. et al.
Earth, Planets and Space 74 巻 ( 154 ) 2022年10月
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Observation of Source Plasma and Field Variations of a Substorm Brightening Aurora at L similar to 6 by a Ground-Based Camera and the Arase Satellite on 12 October 2017
Chen L., Shiokawa K., Miyoshi Y., Oyama S., Jun C-W, Ogawa Y., Hosokawa K., Inaba Y., Kazama Y., Wang S. Y., Tam S. W. Y., Chang T. F., Wang B. J., Asamura K., Kasahara S., Yokota S., Hori T., Keika K., Kasaba Y., Kumamoto A., Tsuchiya F., Shoji M., Kasahara Y., Matsuoka A., Shinohara I, Imajo S., Nakamura S., Kitahara M.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127 巻 ( 11 ) 2022年10月
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Slow Contraction of Flash Aurora Induced by an Isolated Chorus Element Ranging From Lower-Band to Upper-Band Frequencies in the Source Region Open Access
Ozaki Mitsunori, Yagitani Satoshi, Shiokawa Kazuo, Tanaka Yoshimasa, Ogawa Yasunobu, Hosokawa Keisuke, Kasahara Yoshiya, Ebihara Yusuke, Miyoshi Yoshizumi, Imamura Kousuke, Kataoka Ryuho, Oyama Shin-ichiro, Chida Teppei, Kadokura Akira
GEOPHYSICAL RESEARCH LETTERS 49 巻 ( 9 ) 2022年5月
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Altitude of pulsating arcs as inferred from tomographic measurements Open Access
Safargaleev Vladimir, Sergienko Tima, Hosokawa Keisuke, Oyama Shin-ichiro, Ogawa Yasunobu, Miyoshi Yoshizumi, Kurita Satoshi, Fujii Ryochi
EARTH PLANETS AND SPACE 74 巻 ( 1 ) 2022年2月
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Study of an Equatorward Detachment of Auroral Arc From the Oval Using Ground-Space Observations and the BATS-R-US-CIMI Model Open Access
Yadav Sneha, Shiokawa K., Oyama S., Inaba Y., Takahashi N., Seki K., Keika K., Chang Tzu-Fang, Tam S. W. Y., Wang B. J., Kazama Y., Wang S. Y., Asamura K., Kasahara S., Yokota S., Hori T., Kasaba Y., Tsuchiya F., Kumamoto A., Shoji M., Kasahara Y., Matsuoka A., Matsuda S., Jun C. W., Imajo S., Miyoshi Y., Shinohara I
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126 巻 ( 12 ) 2021年12月
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Multipoint Measurement of Fine-Structured EMIC Waves by Arase, Van Allen Probe A, and Ground Stations Open Access
Matsuda S., Miyoshi Y., Kasahara Y., Blum L., Colpitts C., Asamura K., Kasaba Y., Matsuoka A., Tsuchiya F., Kumamoto A., Teramoto M., Nakamura S., Kitahara M., Shinohara I, Reeves G., Spence H., Shiokawa K., Nagatsuma T., Oyama S., Mann I. R.
GEOPHYSICAL RESEARCH LETTERS 48 巻 ( 23 ) 2021年11月
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Simulated seasonal impact on middle atmospheric ozone from high-energy electron precipitation related to pulsating aurorae Open Access
Verronen Pekka T., Kero Antti, Partamies Noora, Szelag Monika E., Oyama Shin-Ichiro, Miyoshi Yoshizumi, Turunen Esa
ANNALES GEOPHYSICAE 39 巻 ( 5 ) 頁： 883 - 897 2021年10月
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Periodicities and Colors of Pulsating Auroras: DSLR Camera Observations From the International Space Station
Nanjo Sota, Hozumi Yuta, Hosokawa Keisuke, Kataoka Ryuho, Miyoshi Yoshizumi, Oyama Shin-ichiro, Ozaki Mitsunori, Shiokawa Kazuo, Kurita Satoshi
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126 巻 ( 10 ) 2021年10月
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Isolated Proton Aurora Driven by EMIC Pc1 Wave: PWING, Swarm, and NOAA POES Multi-Instrument Observations Open Access
Kim Hyangpyo, Shiokawa Kazuo, Park Jaeheung, Miyoshi Yoshizumi, Miyashita Yukinaga, Stolle Claudia, Connor Hyunju Kim, Hwang Junga, Buchert Stephan, Kwon Hyuck-Jin, Nakamura Satoko, Nakamura Kohki, Oyama Shin-Ichiro, Otsuka Yuichi, Nagatsuma Tsutomu, Sakaguchi Kaori
GEOPHYSICAL RESEARCH LETTERS 48 巻 ( 18 ) 2021年9月
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Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II Open Access
Kawamura Miki, Sakanoi Takeshi, Fukizawa Mizuki, Miyoshi Yoshizumi, Hosokawa Keisuke, Tsuchiya Fuminori, Katoh Yuto, Ogawa Yasunobu, Asamura Kazushi, Saito Shinji, Spence Harlan, Johnson Arlo, Oyama Shin'ichiro, Brandstrom Urban
GEOPHYSICAL RESEARCH LETTERS 48 巻 ( 18 ) 2021年9月
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First Simultaneous Observation of a Night Time Medium-Scale Traveling Ionospheric Disturbance From the Ground and a Magnetospheric Satellite Open Access
Kawai K., Shiokawa K., Otsuka Y., Oyama S., Kasaba Y., Kasahara Y., Tsuchiya F., Kumamoto A., Nakamura S., Matsuoka A., Imajo S., Kazama Y., Wang S-Y, Tam S. W. Y., Chang T. F., Wang B. J., Asamura K., Kasahara S., Yokota S., Keika K., Hori T., Miyoshi Y., Jun C., Shoji M., Shinohara I
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126 巻 ( 9 ) 2021年9月
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Variations in Cosmic Noise Absorption in Association With Equatorward Development of the Pulsating Auroral Patch: A Case Study to Estimate the Energy Spectra of Auroral Precipitating Electrons Open Access
Miyamoto Taishiro, Oyama Shin-ichiro, Raita Tero, Hosokawa Keisuke, Miyoshi Yoshizumi, Ogawa Yasunobu, Kurita Satoshi
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126 巻 ( 9 ) 2021年9月
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Penetration of MeV electrons into the mesosphere accompanying pulsating aurorae Open Access
Miyoshi Y., Hosokawa K., Kurita S., Oyama S. -I., Ogawa Y., Saito S., Shinohara I., Kero A., Turunen E., Verronen P. T., Kasahara S., Yokota S., Mitani T., Takashima T., Higashio N., Kasahara Y., Matsuda S., Tsuchiya F., Kumamoto A., Matsuoka A., Hori T., Keika K., Shoji M., Teramoto M., Imajo S., Jun C., Nakamura S.
SCIENTIFIC REPORTS 11 巻 ( 1 ) 2021年7月
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Spatial Evolution of Wave-Particle Interaction Region Deduced From Flash-Type Auroras and Chorus-Ray Tracing Open Access
Ozaki Mitsunori, Inoue Tomohiro, Tanaka Yoshimasa, Yagitani Satoshi, Kasahara Yoshiya, Shiokawa Kazuo, Miyoshi Yoshizumi, Imamura Kousuke, Hosokawa Keisuke, Oyama Shin-ichiro, Kataoka Ryuho, Ebihara Yusuke, Ogawa Yasunobu, Kadokura Akira
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126 巻 ( 7 ) 2021年7月