論文 - 大塚 雄一
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Polarization of Pc1/EMIC waves and related proton auroras observed at subauroral latitudes 査読有り
R. Nomura, K. Shiokawa, K. Sakaguchi, Y. Otsuka, M. Connors
Journal of Geophysical Research: Space Physics 117 巻 ( 2 ) 2012年
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Seasonal and local time variations of e -Region field-aligned irregularities observed with 30.8-mhz radar at kototabang, indonesia 査読有り
Y. Otsuka
International Journal of Geophysics 2012 巻 2012年
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Response of low-latitude ionosphere to medium-term changes of solar and geomagnetic activity 査読有り
Ivan Kutiev, Yuichi Otsuka, Dora Pancheva, Rod Heelis
Journal of Geophysical Research: Space Physics 117 巻 ( 8 ) 2012年
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Lynn, KJW; Otsuka, Y; Shiokawa, K
GEOPHYSICAL RESEARCH LETTERS 38 巻 2011年12月
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On postmidnight low-latitude ionospheric irregularities during solar minimum: 1. Equatorial Atmosphere Radar and GPS-TEC observations in Indonesia 査読有り
T. Yokoyama, M. Yamamoto, Y. Otsuka, M. Nishioka, T. Tsugawa, S. Watanabe, R. F. Pfaff
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年11月
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On postmidnight low-latitude ionospheric irregularities during solar minimum: 2. C/NOFS observations and comparisons with the Equatorial Atmosphere Radar 査読有り
T. Yokoyama, R. F. Pfaff, P. A. Roddy, M. Yamamoto, Y. Otsuka
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年11月
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Equatorial electrodynamics and neutral background in the Asian sector during the 2009 stratospheric sudden warming 査読有り
Huixin Liu, Mamoru Yamamoto, S. Tulasi Ram, Takuya Tsugawa, Yuichi Otsuka, Claudia Stolle, Eelco Doornbos, Kiyohumi Yumoto, Tsutomu Nagatsuma
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年8月
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New aspects of thermospheric and ionospheric storms revealed by CHAMP 査読有り
N. Balan, M. Yamamoto, J. Y. Liu, Y. Otsuka, H. Liu, H. Luehr
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年7月
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Decay of polar cap patch 査読有り
K. Hosokawa, J. I. Moen, K. Shiokawa, Y. Otsuka
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年5月
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A statistical study of the response of the dayside equatorial F-2 layer to the main phase of intense geomagnetic storms as an indicator of penetration electric field 査読有り
N. Balan, M. Yamamoto, V. Sreeja, I. S. Batista, K. J. W. Lynn, M. A. Abdu, S. Ravindran, T. Kikuchi, Y. Otsuka, K. Shokawa, S. Alex
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年3月
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Adachi, T; Otsuka, Y; Yamaoka, M; Yamamoto, M; Shiokawa, K; Chen, AB; Hsu, RR
GEOPHYSICAL RESEARCH LETTERS 38 巻 2011年2月
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Vertical connection from the tropospheric activities to the ionospheric longitudinal structure simulated by a new Earth's whole atmosphere-ionosphere coupled model 査読有り
H. Jin, Y. Miyoshi, H. Fujiwara, H. Shinagawa, K. Terada, N. Terada, M. Ishii, Y. Otsuka, A. Saito
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116 巻 2011年1月
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Otsuka, Y; Kotake, N; Shiokawa, K; Ogawa, T; Tsugawa, T; Saito, A
AERONOMY OF THE EARTH'S ATMOSPHERE AND IONOSPHERE 2 巻 ( 3 ) 頁: 291 - 299 2011年
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A statistical study of the response of the dayside equatorial F2 layer to the main phase of intense geomagnetic storms as an indicator of penetration electric field 査読有り
N. Balan, M. Yamamoto, V. Sreeja, I. S. Batista, K. J.W. Lynn, M. A. Abdu, S. Ravindran, T. Kikuchi, Y. Otsuka, K. Shokawa, S. Alex
Journal of Geophysical Research: Space Physics 116 巻 ( 3 ) 2011年
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Saito, A; Tsugawa, T; Otsuka, Y; Nishioka, M; Iyemori, T; Matsumura, M; Saito, S; Chen, CH; Goi, Y; Choosakul, N
EARTH PLANETS AND SPACE 63 巻 ( 7 ) 頁: 863 - 867 2011年
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Decay of polar cap patch 査読有り
K. Hosokawa, J. I. Moen, K. Shiokawa, Y. Otsuka
Journal of Geophysical Research: Space Physics 116 巻 ( 5 ) 2011年
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Equatorial electrodynamics and neutral background in the Asian sector during the 2009 stratospheric sudden warming 査読有り
Huixin Liu, Mamoru Yamamoto, S. Tulasi Ram, Takuya Tsugawa, Yuichi Otsuka, Claudia Stolle, Eelco Doornbos, Kiyohumi Yumoto, Tsutomu Nagatsuma
Journal of Geophysical Research: Space Physics 116 巻 ( 8 ) 2011年
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ISS-IMAPミッションによって明らかになる超高層大気の姿
斎藤昭則, 山崎敦, 阿部琢美, 鈴木睦, 坂野井健, 藤原均, 吉川一朗, 大塚雄一, 田口真, 山本衛, 中村卓司, 江尻省, 菊池雅行, 河野英昭, 石井守, 久保田実, 星野尾一明, 坂野井和代
第25回大気圏シンポジウム 2011年
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Maruyama, T; Tsugawa, T; Kato, H; Saito, A; Otsuka, Y; Nishioka, M
EARTH PLANETS AND SPACE 63 巻 ( 7 ) 頁: 869 - 873 2011年
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Tsugawa, T; Saito, A; Otsuka, Y; Nishioka, M; Maruyama, T; Kato, H; Nagatsuma, T; Murata, KT
EARTH PLANETS AND SPACE 63 巻 ( 7 ) 頁: 875 - 879 2011年