論文 - 大塚 雄一
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On the Role of Thermospheric Winds and Sporadic E Layers in the Formation and Evolution of Electrified MSTIDs in Geomagnetic Conjugate Regions 査読有り Open Access
Narayanan V. L., Shiokawa K., Otsuka Y., Neudegg D.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123 巻 ( 8 ) 頁: 6957 - 6980 2018年8月
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Tsuchiya, S; Shiokawa, K; Fujinami, H; Otsuka, Y; Nakamura, T; Yamamoto, M
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123 巻 ( 8 ) 頁: 6930 - 6947 2018年8月
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Chaitanya, PP; Patra, AK; Otsuka, Y; Yokoyama, T; Yamamoto, M
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123 巻 ( 8 ) 頁: 6752 - 6759 2018年8月
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Quantum criticality in the metal-superconductor transition of interacting Dirac fermions on a triangular lattice 査読有り Open Access
Otsuka Yuichi, Seki Kazuhiro, Sorella Sandro, Yunoki Seiji
PHYSICAL REVIEW B 98 巻 ( 3 ) 2018年7月
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Equatorial plasma bubble seeding by MSTIDs in the ionosphere 査読有り Open Access
Takahashi, H; Wrasse, CM; Figueiredo, CAOB; Barros, D; Abdu, MA; Otsuka, Y; Shiokawa, K
PROGRESS IN EARTH AND PLANETARY SCIENCE 5 巻 ( 1 ) 2018年6月
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Total Electron Content Observations by Dense Regional and Worldwide International Networks of GNSS
Tsugawa Takuya, Nishioka Michi, Ishii Mamoru, Hozumi Kornyanat, Saito Susumu, Shinbori Atsuki, Otsuka Yuichi, Saito Akinori, Buhari Suhaila M., Abdullah Mardina, Supnithi Pornchai
JOURNAL OF DISASTER RESEARCH 13 巻 ( 3 ) 頁: 535-545 2018年6月
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Total Electron Content Observations by Dense Regional and Worldwide International Networks of GNSS 査読有り
Tsugawa Takuya, Nishioka Michi, Ishii Mamoru, Hozumi Kornyanat, Saito Susumu, Shinbori Atsuki, Otsuka Yuichi, Saito Akinori, Buhari Suhaila M, Abdullah Mardina, Supnithi Pornchai
JOURNAL OF DISASTER RESEARCH 13 巻 ( 3 ) 頁: 535 - 545 2018年6月
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Yamamoto, M; Otsuka, Y; Jin, H; Miyoshi, Y
PROGRESS IN EARTH AND PLANETARY SCIENCE 5 巻 2018年5月
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Spatial and temporal characteristics of ionospheric total electron content over Indian equatorial and low-latitude GNSS stations 査読有り
G. Sivavaraprasad, Yuichi Otsuka, Nitin Kumar Tripathi, V Rajesh Chowdhary, D Venkata Ratnam, Mohammed Afzal Khan
2018 Conference on Signal Processing And Communication Engineering Systems, SPACES 2018 2018- 巻 頁: 105 - 108 2018年3月
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Daily and seasonal variations in the linear growth rate of the Rayleigh-Taylor instability in the ionosphere obtained with GAIA 査読有り Open Access
Shinagawa, H; Jin, H; Miyoshi, Y; Fujiwara, H; Yokoyama, T; Otsuka, Y
PROGRESS IN EARTH AND PLANETARY SCIENCE 5 巻 2018年3月
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Medium-Scale Traveling Ionospheric Disturbances Observed by Detrended Total Electron Content Maps Over Brazil 査読有り Open Access
Figueiredo, CAOB; Takahashi, H; Wrasse, CM; Otsuka, Y; Shiokawa, K; Barros, D
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123 巻 ( 3 ) 頁: 2215 - 2227 2018年3月
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Daytime F-region irregularity triggered by rocket-induced ionospheric hole over low latitude 査読有り Open Access
Li, GZ; Ning, BQ; Abdu, MA; Wang, C; Otsuka, Y; Wan, WX; Lei, JH; Nishioka, M; Tsugawa, T; Hu, LH; Yang, GT; Yan, CX
PROGRESS IN EARTH AND PLANETARY SCIENCE 5 巻 ( 1 ) 2018年2月
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Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes 査読有り Open Access
Ozaki, M; Shiokawa, K; Miyoshi, Y; Kataoka, R; Connors, M; Inoue, T; Yagitani, S; Ebihara, Y; Jun, CW; Nomura, R; Sakaguchi, K; Otsuka, Y; Uchida, HA; Schofield, I; Danskin, DW
GEOPHYSICAL RESEARCH LETTERS 45 巻 ( 3 ) 頁: 1209 - 1217 2018年2月
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Observations of Ultrawideband Signals in GPS TEC Variations over Europe during Solar Eclipse 査読有り
Panasenko Sergii V, Chernogor Leonid F, Lazorenko Oleg V, Otsuka Yuichi, van de Kamp Max
2018 9TH INTERNATIONAL CONFERENCE ON ULTRAWIDEBAND AND ULTRASHORT IMPULSE SIGNALS (UWBUSIS) 頁: 115 - 118 2018年
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Temporal and spatial variations of mid-latitude ionospheric trough during a geomagnetic storm based on global GNSS-TEC and Arase satellite observations 査読有り
2018 2ND URSI ATLANTIC RADIO SCIENCE MEETING (AT-RASC) 2018年
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First Study on the Occurrence Frequency of Equatorial Plasma Bubbles over West Africa Using an All-Sky Airglow Imager and GNSS Receivers 査読有り Open Access
Okoh, D; Rabiu, B; Shiokawa, K; Otsuka, Y; Segun, B; Falayi, E; Onwuneme, S; Kaka, R
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122 巻 ( 12 ) 頁: 12430 - 12444 2017年12月
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Shiokawa, K; Katoh, Y; Hamaguchi, Y; Yamamoto, Y; Adachi, T; Ozaki, M; Oyama, SI; Nosé, M; Nagatsuma, T; Tanaka, Y; Otsuka, Y; Miyoshi, Y; Kataoka, R; Takagi, Y; Takeshita, Y; Shinbori, A; Kurita, S; Hori, T; Nishitani, N; Shinohara, I; Tsuchiya, F; Obana, Y; Suzuki, S; Takahashi, N; Seki, K; Kadokura, A; Hosokawa, K; Ogawa, Y; Connors, M; Ruohoniemi, JM; Engebretson, M; Turunen, E; Ulich, T; Manninen, J; Raita, T; Kero, A; Oksanen, A; Back, M; Kauristie, K; Mattanen, J; Baishev, D; Kurkin, V; Oinats, A; Pashinin, A; Vasilyev, R; Rakhmatulin, R; Bristow, W; Karjala, M
EARTH PLANETS AND SPACE 69 巻 2017年11月
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The Solar Flux Dependence of Ionospheric 150 km Radar Echoes and Implications 査読有り Open Access
Patra, AK; Chaitanya, PP; St-Maurice, JP; Otsuka, Y; Yokoyama, T; Yamamoto, M
GEOPHYSICAL RESEARCH LETTERS 44 巻 ( 22 ) 頁: 11257 - 11264 2017年11月
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On the effect of thermospheric neutral winds on post-midnight field-aligned irregularities at low latitudes 査読有り
Tam Dao, Yuichi Otsuka, Kazuo Shiokawa, Michi Nishioka, Mamoru Yamamoto, Suhaila M. Buhari, Mardina Abdullah, Asnawi Husin
2017 32nd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2017 2017- 巻 頁: 1 - 4 2017年11月
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Fukushima, D; Shiokawa, K; Otsuka, Y; Kubota, M; Yokoyama, T; Nishioka, M; Komonjinda, S; Yatini, CY
EARTH PLANETS AND SPACE 69 巻 2017年11月