研究者詳細 - 大塚　雄一

論文 - 大塚　雄一

分割表示 496 件中 21 - 40 件目／全件表示 >>

Machine learning approach for ionospheric scintillation prediction on ROTI parameter over the African region during solar cycle 24

Tete, S; Otsuka, Y; Zahra, WK; Mahrous, A

ADVANCES IN SPACE RESEARCH 74 巻 ( 12 ) 頁： 6325 - 6342 2024年12月

Longitudinal Range of the Eastward-Traveling Equatorial Plasma Bubble Inducing Ionospheric Scintillation 査読有り Open Access

Abadi, P; Otsuka, Y; Saito, S; Yamamoto, M; Perwitasari, S; Muafiry, IN; Putra, AY; Faturahman, A

SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS 22 巻 ( 8 ) 2024年8月

High-resolution 3-D imaging of electron density perturbations using ultra-dense GNSS observation networks in Japan: an example of medium-scale traveling ionospheric disturbances 査読有り国際共著 Open Access

Fu, WZ; Otsuka, Y; Ssessanga, N

EARTH PLANETS AND SPACE 76 巻 ( 1 ) 2024年7月

Leveraging machine learning techniques and GPS measurements for precise TEC rate predictions 査読有り国際共著

Tete, S; Otsuka, Y; Zahra, WK; Mahrous, A

GPS SOLUTIONS 28 巻 ( 3 ) 2024年7月

Thank You to Our 2023 Peer Reviewers 査読有り国際共著 Open Access

Rajaram, H; Aiyyer, A; Camargo, S; Cappa, CD; Dombard, AJ; Donohue, KA; Feakins, S; Flesch, L; Fulweiler, R; Ganju, N; Giannini, A; Gu, Y; Huber, C; Ivanov, V; Karnauskas, K; Korte, M; Lewis, K; Lu, G; Magnusdottir, G; Morlighem, M; Oieroset, M; Otsuka, Y; Prieto, GA; Qiu, B; Russell, L; Su, H; Sun, DY; Wang, GL; Wang, KC; Whalen, C; White, AE; Williams, Q; Yau, A

GEOPHYSICAL RESEARCH LETTERS 51 巻 ( 9 ) 2024年5月

Permulaan Gelembung Plasma Khatulistiwa Semasa Angin Neutral Kuat dan Lemah di Asia Tenggara

Sarudin, I; Hamid, NSA; Abdullah, M; Buhari, SM; Otsuka, Y; Perwitasari, S; Yatini, C

JURNAL KEJURUTERAAN 36 巻 ( 3 ) 頁： 1281 - 1289 2024年5月

Assessing the potential of ionosonde for forecasting post-sunset equatorial spread F: an observational experiment in Southeast Asia 査読有り国際共著 Open Access

Abadi, P; Ahmad, UA; Otsuka, Y; Jamjareegulgarn, P; Almahi, A; Perwitasari, S; Supriadi, S; Harjupa, W; Septiawan, RR

EARTH PLANETS AND SPACE 75 巻 ( 1 ) 2023年12月

Equinoctial asymmetry of plasma bubble occurrence and electric field at evening: GPS and ionosonde measurements in Southeast Asia 査読有り

Otsuka, Y; Abadi, P; Hozumi, K; Almahi, A

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 252 巻 2023年11月

Daytime Medium Scale Traveling Ionospheric Disturbances (MSTIDS) Over the Andes Mountains at Equatorial and Low Magnetic Latitudes 査読有り国際共著 Open Access

Figueiredo, CAOB; Wrasse, CM; Vadas, S; Takahashi, H; Otsuka, Y; Nyassor, PK; Shiokawa, K; Paulino, I; Barros, D

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

Responses of the African-European equatorial-, low-, mid-, and high-latitude ionosphere to geomagnetic storms of 2013, 2015 St Patrick's Days, 1 June 2013, and 7 October 2015 査読有り国際共著

Akala, AO; Afolabi, RO; Otsuka, Y

ADVANCES IN SPACE RESEARCH 72 巻 ( 3 ) 頁： 775 - 789 2023年8月

Equatorial plasma bubble intensities across longitudinal sectors of the globe using GNSS observations 査読有り国際共著

Okoh, D; Shiokawa, K; Otsuka, Y; Rabiu, B; Habarulema, JB; Migoya-Orue, Y; Cesaroni, C

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 249 巻 2023年8月

Statistical Analysis of the Horizontal Phase Velocity Distribution of Atmospheric Gravity Waves and Medium-Scale Traveling Ionospheric Disturbances in Airglow Images Over Darwin (12.4°S, 131.0°E)

Tsuboi, T; Shiokawa, K; Otsuka, Y; Fujinami, H; Nakamura, T; Neudegg, D

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

Ionospheric disturbances over South America related to Tonga volcanic eruption 査読有り国際共著 Open Access

Takahashi, H; Figueiredo, CAOB; Barros, D; Wrasse, CM; Giongo, GA; Honda, RH; Vital, LFR; Resende, LCA; Nyassor, PK; Ayorinde, TT; Carmo, CS; Padua, MB; Otsuka, Y

EARTH PLANETS AND SPACE 75 巻 ( 1 ) 2023年5月

Day-to-day variability of the equatorial ionosphere in Asian sector during August-October 2019 査読有り国際共著 Open Access

Liu, HX; Otsuka, Y; Hozumi, K; Yu, T

FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 10 巻 2023年5月

Multi-Event Conjugate Measurements of the SAR Arc Detachment From the Auroral Oval Using DMSP Satellites and an All-Sky Camera at Athabasca, Canada 査読有り国際共著

Gololobov, A; Shiokawa, K; Baishev, D; Inaba, Y; Otsuka, Y; Connors, M

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128 巻 ( 4 ) 2023年4月

Solved and unsolved riddles about low-latitude daytime valley region plasma waves and 150-km echoes 査読有り国際共著 Open Access

Chau, JL; Longley, WJ; Reyes, PM; Pedatella, NM; Otsuka, Y; Stolle, C; Liu, H; England, SL; Vierinen, JP; Milla, MA; Hysell, DL; Oppenheim, MM; Patra, A; Lehmacher, G; Kudeki, E

FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 10 巻 2023年2月

Tandem Observations of Nighttime Mid-Latitude Topside Ionospheric Perturbations 査読有り国際共著 Open Access

Song, H; Park, J; Jin, YQ; Otsuka, Y; Buchert, S; Lee, J; Yi, Y

SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS 21 巻 ( 2 ) 2023年2月

Ionospheric Modulation by EMIC Wave-Driven Proton Precipitation: Observations and Simulations 査読有り国際共著 Open Access

Tian, XB; Yu, YQ; Gong, F; Ma, LX; Cao, JB; Solomon, SC; Shreedevi, PR; Shiokawa, K; Otsuka, Y; Oyama, S; Miyoshi, Y

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128 巻 ( 1 ) 2023年1月

Relationship between geomagnetic storms and occurrence of ionospheric irregularities in the west sector of Africa during the peak of the 24th solar cycle Open Access

Ondede, GO; Rabiu, AB; Okoh, D; Baki, P; Olwendo, J; Shiokawa, K; Otsuka, Y

FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 9 巻 2022年11月

Localized mesospheric ozone destruction corresponding to isolated proton aurora coming from Earth's radiation belt Open Access

Ozaki Mitsunori, Shiokawa Kazuo, Kataoka Ryuho, Mlynczak Martin, Paxton Larry, Connors Martin, Yagitani Satoshi, Hashimoto Shion, Otsuka Yuichi, Nakahira Satoshi, Mann Ian

SCIENTIFIC REPORTS 12 巻 ( 1 ) 2022年10月

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論文 - 大塚 雄一

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論文 - 大塚　雄一