研究者詳細 - 大山　伸一郎

論文 - 大山　伸一郎

分割表示 122 件中 1 - 20 件目／全件表示 >>

Multi-Event Analysis of STEVE, SAR Arc, and Red/Green Arc at Subauroral Latitudes Using Data From Ground Optical and Radio Instruments and the Arase and Van Allen Probes Satellites

Sugimura, R; Shiokawa, K; Otsuka, Y; Oyama, S; Oksanen, A; Connors, M; Kadokura, A; Poddelsky, I; Nishitani, N; Shepherd, SG; Ruohoniemi, JM; Smith, C; Spence, H; Reeves, G; Funsten, HO; Miyoshi, Y; Shinohara, I; Kasahara, Y; Tsuchiya, F; Kumamoto, A; Shinbori, A; Asamura, K; Yokota, S; Kazama, Y; Jun, CW; Wang, SY; Tam, SWY; Chang, TF; Wang, BJ; Kasahara, S; Keika, K; Hori, T; Matsuoka, A

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 130 巻 ( 2 ) 2025年2月

Total Electron Content Variations During an HSS/SIR-Driven Geomagnetic Storm at High and Mid Latitudes

Geethakumari, GP; Aikio, AT; Cai, L; Vanhamäki, H; Virtanen, II; Coster, A; Marchaudon, A; Blelly, PL; Maute, A; Norberg, J; Oyama, S; Zhang, Y; Kunduri, BSR

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 12 ) 2024年12月

Development and Evaluation of a Comprehensive Machine Learning Tool Differentiating Idiopathic Pulmonary Fibrosis from Other Interstitial Lung Diseases in the Japanese nationwide registry (PROMISE study)

Furukawa, T; Kondoh, Y; Oyama, S; Yokota, H; Teramachi, R; Hozumi, H; Shiratori, Y; Hasegawa, Y; Suda, T; Ishii, M

EUROPEAN RESPIRATORY JOURNAL 64 巻 2024年9月

EISCAT Observations of Depleted High-Latitude <i>F</i>-Region During an HSS/SIR-Driven Magnetic Storm

Ellahouny, NM; Aikio, AT; Vanhamäki, H; Virtanen, II; Cai, L; Marchaudon, A; Blelly, PL; Coster, A; Norberg, J; Maute, A; Oyama, S

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 9 ) 2024年9月

Observational Evidence for Three Time-Scale Modulations in the Pulsating Aurora

Chen, R; Miyoshi, Y; Gao, XL; Lu, QM; Tsurutani, BT; Hosokawa, K; Hori, T; Ogawa, Y; Oyama, SI; Kasahara, Y; Matsuda, S; Nakamura, S; Matsuoka, A; Shinohara, I

GEOPHYSICAL RESEARCH LETTERS 51 巻 ( 16 ) 2024年8月

Effect of Polar Cap Patches on the High-Latitude Upper Thermospheric Winds

Cai, L; Aikio, A; Oyama, S; Ivchenko, N; Vanhamäki, H; Virtanen, I; Buchert, S; Mekuriaw, ML; Zhang, Y

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 8 ) 2024年8月

Occurrence of Mesospheric Frontal Structures Over the High Latitude Station, Tromsø, Norway

Chauhan, N; Shiokawa, K; Gurubaran, S; Nozawa, S; Oyama, SI; Nakamura, T

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 7 ) 2024年7月

Spatiotemporal Development of Cosmic Noise Absorption at Subauroral Latitudes Using Multipoint Ground-Based Riometers

Kato, Y; Shiokawa, K; Tanaka, Y; Ozaki, M; Kadokura, A; Oyama, S; Oinats, A; Connors, M; Baishev, D

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 7 ) 2024年7月

On the Factors Controlling the Relationship Between Type of Pulsating Aurora and Energy of Pulsating Auroral Electrons: Simultaneous Observations by Arase Satellite, Ground-Based All-Sky Imagers and EISCAT Radar

Ito, Y; Hosokawa, K; Ogawa, Y; Miyoshi, Y; Tsuchiya, F; Fukizawa, M; Kasaba, Y; Kazama, Y; Oyama, S; Murase, K; Nakamura, S; Kasahara, Y; Matsuda, S; Kasahara, S; Hori, T; Yokota, S; Keika, K; Matsuoka, A; Teramoto, M; Shinohara, I

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 7 ) 2024年7月

Westward Excursion of Pc1/EMIC Waves and Their Source Protons: Paradoxical Observations From Ground and Space

Yin, ZF; Zhou, XZ; Hu, ZJ; Yue, C; Zong, QG; Liu, ZY; Liu, JJ; Shiokawa, K; Oyama, SI; Baishev, D

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 5 ) 2024年5月

Statistical Analysis of Low-Latitude Boundary of Polar-Type Medium-Scale Traveling Ionospheric Disturbances Observed by a 630-nm Airglow Imager at Nyrölä, Finland

Sato, M; Shiokawa, K; Oyama, S; Otsuka, Y; Shinbori, A; Oksanen, A

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 4 ) 2024年4月

Thermospheric Wind Response to March 2023 Storm: Largest Wind Ever Observed With a Fabry-Perot Interferometer in Tromsø, Norway Since 2009

Oyama, S; Vanhamäki, H; Cai, L; Shinbori, A; Hosokawa, K; Sakanoi, T; Shiokawa, K; Aikio, A; Virtanen, II; Ogawa, Y; Miyoshi, Y; Kurita, S; Nishitani, N

SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS 22 巻 ( 3 ) 2024年3月

Longitudinal Development of Cosmic Noise Absorption Based on Multipoint Observations at Subauroral Latitudes During Storm-Time Substorms on 25-28 August 2018

Kato, Y; Shiokawa, K; Tanaka, Y; Ozaki, M; Kadokura, A; Oyama, SI; Oinats, A; Connors, M; Baishev, D

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 129 巻 ( 1 ) 2024年1月

Correspondence of Pi2 Pulsations, Aurora Luminosity, and Plasma Flux Fluctuation Near a Substorm Brightening Aurora: Arase Observations

Chen, L; Shiokawa, K; Miyoshi, Y; Oyama, S; Jun, CW; Ogawa, Y; Hosokawa, K; Kazama, Y; Wang, SY; Tam, SWY; Chang, TF; Wang, BJ; Asamura, K; Kasahara, S; Yokota, S; Hori, T; Keika, K; Kasaba, Y; Kumamoto, A; Tsuchiya, F; Shoji, M; Kasahara, Y; Matsuoka, A; Shinohara, I; Nakamura, S

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128 巻 ( 10 ) 2023年10月

An Implication of Detecting the Internal Modulation in a Pulsating Aurora: A Conjugate Observation by the Arase Satellite and All-Sky Imagers

Nanjo S., Ebukuro S., Nakamura S., Miyoshi Y., Kurita S., Oyama S. -I., Ogawa Y., Keika K., Kasahara Y., Kasahara S., Matsuoka A., Hori T., Yokota S., Matsuda S., Shinohara I., Wang S. -Y., Kazama Y., Jun C. -W., Kitahara M., Hosokawa K.

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128 巻 ( 8 ) 2023年8月

A Ground-Based Instrument Suite for Integrated High-Time Resolution Measurements of Pulsating Aurora With Arase

Hosokawa K., Oyama S. -I., Ogawa Y., Miyoshi Y., Kurita S., Teramoto M., Nozawa S., Kawabata T., Kawamura Y., Tanaka Y. -M., Miyaoka H., Kataoka R., Shiokawa K., Brandstrom U., Turunen E., Raita T., Johnsen M. G., Hall C., Hampton D., Ebihara Y., Kasahara Y., Matsuda S., Shinohara I., Fujii R.

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128 巻 ( 8 ) 2023年8月

IMF Dependence of Midnight Bifurcation in the Thermospheric Wind at an Auroral Latitude Based on Nine Winter Measurements in Tromso, Norway

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

Geomagnetic activity dependence and dawn-dusk asymmetry of thermospheric winds from 9-year measurements with a Fabry-Perot interferometer in Tromso, Norway

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

Ionospheric modulation by EMIC wave-driven proton precipitation: Observations and simulations 招待有り査読有り国際共著

(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

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

(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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