Papers - OTSUKA, Yuichi
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On postmidnight low-latitude ionospheric irregularities during solar minimum: 2. C/NOFS observations and comparisons with the Equatorial Atmosphere Radar Open Access
Yokoyama T., Pfaff R. F., Roddy P. A., Yamamoto M., Otsuka Y.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 116 2011.11
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New aspects of thermospheric and ionospheric storms revealed by CHAMP Open Access
Balan N., Yamamoto M., Liu J. Y., Otsuka Y., Liu H., Luehr H.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 116 2011.7
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Decay of polar cap patch
Hosokawa K., Moen J. I., Shiokawa K., Otsuka Y.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 116 2011.5
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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
Jin H., Miyoshi Y., Fujiwara H., Shinagawa H., Terada K., Terada N., Ishii M., Otsuka Y., Saito A.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 116 2011.1
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Dynamic temporal evolution of polar cap tongue of ionization during magnetic storm
Hosokawa K., Tsugawa T., Shiokawa K., Otsuka Y., Nishitani N., Ogawa T., Hairston M. R.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 115 2010.12
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Midnight latitude-altitude distribution of 630 nm airglow in the Asian sector measured with FORMOSAT-2/ISUAL Open Access
Adachi Toru, Yamaoka Masashi, Yamamoto Mamoru, Otsuka Yuichi, Liu Huixin, Hsiao Chun-Chieh, Chen Alfred B., Hsu Rue-Ron
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 115 2010.9
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Yoshioka, H; Tsuchiizu, M; Otsuka, Y; Seo, H
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Vol. 79 ( 9 ) 2010.9
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Large-scale traveling ionospheric disturbance observed by superDARN Hokkaido HF radar and GPS networks on 15 December 2006
Hayashi H., Nishitani N., Ogawa T., Otsuka Y., Tsugawa T., Hosokawa K., Saito A.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 115 2010.6
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A physical mechanism of positive ionospheric storms at low latitudes and midlatitudes Open Access
Balan N., Shiokawa K., Otsuka Y., Kikuchi T., Lekshmi D. Vijaya, Kawamura S., Yamamoto M., Bailey G. J.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 115 2010.2
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Reorganization of polar cap patches through shears in the background plasma convection
Hosokawa K., St-Maurice J. -P., Sofko G. J., Shiokawa K., Otsuka Y., Ogawa T.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 115 2010.1
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Spatial relationship of nighttime medium-scale traveling ionospheric disturbances and F region field-aligned irregularities observed with two spaced all-sky airglow imagers and the middle and upper atmosphere radar Open Access
Otsuka Y., Shiokawa K., Ogawa T., Yokoyama T., Yamamoto M.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.5
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Motion of polar cap patches: A statistical study with all-sky airglow imager at Resolute Bay, Canada
Hosokawa K., Kashimoto T., Suzuki S., Shiokawa K., Otsuka Y., Ogawa T.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.4
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Medium-scale traveling ionospheric disturbances observed with the SuperDARN Hokkaido radar, all-sky imager, and GPS network and their relation to concurrent sporadic E irregularities
Ogawa T., Nishitani N., Otsuka Y., Shiokawa K., Tsugawa T., Hosokawa K.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.3
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Super plasma fountain and equatorial ionization anomaly during penetration electric field Open Access
Balan N., Shiokawa K., Otsuka Y., Watanabe S., Bailey G. J.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.3
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Relationship between polar cap patches and field-aligned irregularities as observed with an all-sky airglow imager at Resolute Bay and the PolarDARN radar at Rankin Inlet Open Access
Hosokawa K., Shiokawa K., Otsuka Y., Ogawa T., St-Maurice J. -P., Sofko G. J., Andre D. A.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.3
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Three-dimensional simulation of the coupled Perkins and E-s-layer instabilities in the nighttime midlatitude ionosphere Open Access
Yokoyama Tatsuhiro, Hysell David L., Otsuka Yuichi, Yamamoto Mamoru
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 114 2009.3
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Characteristics of equatorial gravity waves derived from mesospheric airglow imaging observations Open Access
Suzuki S., Shiokawa K., Liu A. Z., Otsuka Y., Ogawa T., Nakamura T.
ANNALES GEOPHYSICAE Vol. 27 ( 4 ) page： 1625 - 1629 2009
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Equatorial GPS ionospheric scintillations over Kototabang, Indonesia and their relation to atmospheric waves from below Open Access
Ogawa Tadahiko, Miyoshi Yasunobu, Otsuka Yuichi, Nakamura Takuji, Shiokawa Kazuo
EARTH PLANETS AND SPACE Vol. 61 ( 4 ) page： 397 - 410 2009
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Propagation characteristics of nighttime mesospheric and thermospheric waves observed by optical mesosphere thermosphere imagers at middle and low latitudes Open Access
Shiokawa K., Otsuka Y., Ogawa T.
EARTH PLANETS AND SPACE Vol. 61 ( 4 ) page： 479 - 491 2009
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Relative effects of electric field and neutral wind on positive ionospheric storms Open Access
Balan N., Alleyne H., Otsuka Y., Lekshmi D. Vijaya, Fejer B. G., McCrea I.
EARTH PLANETS AND SPACE Vol. 61 ( 4 ) page： 439 - 445 2009