Otsuka Yuichi

Homepage URL (1)： http://stdb2.isee.nagoya-u.ac.jp/member/otsuka/index.html

Research field (2)： Other , Space and planetary science

Research keywords (2)：電離圏物理学 , 超高層大気物理学

Research theme for competitive and other funds (36)：

2021 - 2026 Study of latitudinal coupling of upper atmospheric variations based on multi-point ground network observations
2020 - 2025 International study of equatorial ionosphere based on observations and models
2016 - 2021 Study of dynamical variation of particles and waves in the inner magnetosphere using ground-based network observations (PWING Project)
2015 - 2020 Understanding and prediction of geospace dynamics
2016 - 2019 Observations of ionospheric scintillation at cusp and polar cap regions using satellite signals

2013 - 2017 人工衛星-地上ネットワーク観測に基づく内部磁気圏の粒子変動メカニズムの研究

2013 - 2017 Study of relations between Equatorial Spread-F and ionospheric structures with Equatorial Atmosphere Radar and wide-area observation network

2012 - 2016 Coordinated observation of the mesospheric disturbances generated by the tropospheric activities using the coordinated observation from ground and the space

2012 - 2015 Study of generation mechanism of middle-latitude ionospheric wave by rocket and ground-based observations

2011 - 2015 Equinoctial Asymmetry of the Ionosphere and Thermosphere

2011 - 2015 Studies of Ionospheric Irregularities in the Polar Region by GPS Scintillation Observations

2011 - 2014 GPSシンチレーション観測による極域電離圏イレギュラリティの研究

2011 - 2014 電離圏・熱圏の春・秋非対称性

2008 - 2013 Study of the upper atmosphere dynamics using highly sensitive multi-point optical instruments

2010 - 2012 Study of day-to-day variability of equatorial Spread-F based on large-area observations over India, southeast Asia, and Pacific

2008 - 2011 低緯度電離圏不規則構造のレーダー・イメージング観測

2010 - 2011 A study of multi-scale ionospheric disturbances and their effects on GNSS using GPS receiver networks

2009 - 2011 Development of wide-area plasma bubble monitoring by a passive radar technique with digital radio receivers

2008 - 2010 Development of a whole atmosphere-ionosphere coupled model for the upper atmospheric research and prediction

2008 - 2010 Radar imaging observations of the field-aligned irregularities at low-latitude ionosphere

2007 - 2010 Study of the interaction between the ionospheric plasma and thermospheric neutral winds in the mid-and high-latitude region using the SuperDARN HF radar networ k

2006 - 2009 Ground-Satellite observation of geospace environment over Siberia and Japan

2006 - 2008 GPS受信機網を用いた地震起源の電離圏変動に関する研究

2006 - 2007 Super Rotation of Atmosphere/Plasma in Thermosphere-Cooperated Observations by Japan, India and Taiwan-

2006 - 2007 Study of dynamic and elecimanagnetic conpling processes in the micilatifi vie. ionosphere

2006 - 2007 GPS受信機網を用いた地震起源の電離圏変動に関する研究

2005 - 2007 Observational Research on ionospheric response to EUV irradiance variation of solar flares

2005 - 2006 プラズマバブル測定用全天カメラの現地調整

2004 - 2006 Highly Sensitive Optical Observations of Aurcraand Upper Atmosphere in the Canadian Arctic

2001 - 2006 Study of the variation of the thermosphere by equatorial atmospheric energy

2004 - 2005 Development of all-sky airglow camera for plasma bubble observations

2001 - 2004 Geomagnetic conjugate observation of therinospheric waves at midlatitudes

2002 - 2003 Study of generating mechanism of ionospheric E-region irregularities with rocket/radar simultaneous observations

1999 - 2002 Three-dimensional imaging of atmospheric waves in the thermosphere using network observations over Japan

2000 - 2001 Development of a data processing and distribution system for total electron content data of a GPS receiver network

1998 - 1998 MUレーダー観測に基づく電離圏/磁気圏/中間圏の結合過程に関する研究

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Papers (375)：

Weizheng Fu, Yuichi Otsuka, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari. Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in Japan. Earth, Planets and Space. 2024. 76. 1
Suneetha Emmela, Devanaboyina Venkata Ratnam, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari. Statistical Analysis of Global and Regional Ionospheric Total Electron Content (TEC) Using Extreme Value Distributions. IEEE Trans. Geosci. Remote. Sens. 2024. 62. 1-8
A. Shinbori, Y. Otsuka, T. Sori, M. Nishioka, S. Perwitasari, T. T. Tsuda, N. Nishitani, A. Kumamoto, F. Tsuchiya, S. Matsuda, et al. New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga-Hunga Ha’apai volcano. Earth Planets Space. 2023. 75. 175
Hiroyuki Nakata, Keisuke Hosokawa, Susumu Saito, Yuichi Otsuka, Ichoro Tomizawa. Periodic oscillations of Doppler frequency excited by the traveling ionospheric disturbances associated with the Tonga eruption in 2022. Earth, Planets and Space. 2023. 75. 1
Asuka Hirai, Fuminori Tsuchiya, Takahiro Obara, Yuto Katoh, Yoshizumi Miyoshi, Kazuo Shiokawa, Yasumasa Kasaba, Hiroaki Misawa, Chae Woo Jun, Satoshi Kurita, et al. Spatio-Temporal Characteristics of IPDP-Type EMIC Waves on April 19, 2017: Implications for Loss of Relativistic Electrons in the Outer Belt. Journal of Geophysical Research: Space Physics. 2023. 128. 8

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MISC (162)：

松山実由規, 石坂圭吾, 山本衛, 斎藤享, 高橋透, 大塚雄一, 熊本篤志, 田中真, 阿部琢美. Electric field Observed during Nighttime Medium Scale Traveling Ionospheric Disturbance Occurrence by S-520-27 Sounding Rocket. 地球電磁気・地球惑星圏学会総会及び講演会(Web). 2023. 154th
内藤豪人, 塩川和夫, 大塚雄一, 坂野井健, 齊藤昭則, 中村卓司. Analysis of source and generation mechanism of atmospheric gravity waves and MSITDs observed in airglow images in Hawaii. 日本地球惑星科学連合大会予稿集(Web). 2020. 2020
内藤豪人, 塩川和夫, 大塚雄一, 藤波初木, 坂野井健, 齊藤昭則, 中村卓司. Correlation between AGWs and MSTIDs in airglow images obtained in Hawaii and their relation with the tropospheric upward flow. 地球電磁気・地球惑星圏学会総会及び講演会(Web). 2020. 148th
横山竜宏, 品川裕之, 陣英克, 大塚雄一. Effect of rapidly growing equatorial plasma bubbles on midlatitude region. 地球電磁気・地球惑星圏学会総会及び講演会(Web). 2020. 148th
横山竜宏, 品川裕之, 大塚雄一. Effect of equatorial plasma bubbles on midlatitude region. 日本地球惑星科学連合大会予稿集(Web). 2020. 2020

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Lectures and oral presentations (48)：

ファブリ・ペロー干渉計観測による熱圏中性大気風速とMUレーダーによるF 領域プラズマドリフトの統計解析
(第124回地球電磁気・地球惑星圏学会)
トロムソEISCAT サイトでのGPS シンチレーション観測
(第124回地球電磁気・地球惑星圏学会)
VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia
(Asia Oceania Geosciences Society (AOGS))
VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia
(Asia Oceania Geosciences Society 2008)
Relationship between medium-scale traveling ionospheric disturbance and sporadic E layer activities in summer night over Japan
(Asia Oceania Geosciences Society 2008)

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Education (3)：

1996 - 1998 Kyoto University
1994 - 1996 Kyoto University
1990 - 1994 Kyoto University Science

Awards (13)：

2021/01 - Earth, Planets and Space Excellent Reviewers 2020
2020/06 - Committee on Space Research Advances in Space Research: Top Reviewer 2019
2019/10 - Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) Tanakadate Award
2019/05 - American Geophysical Union (AGU) AGU’s Outstanding Reviewers of 2018, Radio Science
2018/08 - Advances in Space Research: Top Reviewers of 2017

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Association Membership(s) (3)：

American Geophysical Union , THE INSTITUTE OF POSITIONING , SOCIETY OF GEOMAGNETISM AND EARTH

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