Identification of Generation/Driving Mechanisms of Upper-Atmospheric Discharges and Global Electric Circuit Using Satellite Data and Numerical Simulation

• Project/Area Number: 16H04055
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Hokkaido University
• Principal Investigator: SATO Mitsuteru 北海道大学, 理学研究院, 講師 (50312541)
• Co-Investigator(Kenkyū-buntansha): 平木 康隆 電気通信大学, 大学院情報理工学研究科, 研究員 (80514843)
• Research Collaborator: BANDHOLNOPPARAT kittanapat ; SHIMIZU chiharu ; SATO tsuyoshi ; KIKUCHI hiroshi ; MINAMOTO yasuhiro
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2018: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2017: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2016: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
• Keywords: 雷放電 / 高高度放電発光現象 / スプライト / 全球電流回路 / 国際宇宙ステーション / グローバルサーキット / 超高層物理学 / 超高層大気環境 / 国愛宇宙ステーション(ISS) / 大気現象 / 磁気圏・電離圏 / 国際宇宙ステーション(ISS)

Outline of Final Research Achievements

The main objectives of this research are (1) to identify the generation mechanism of the horizontal distribution of sprites, and (2) to estimate the Z-value (occurrence ratio of intra-cloud to cloud-to-ground discharges) and to evaluate the contribution of the global lightning activities to the global electrical circuit (GEC) as the electrical current generator. For these purposes, JEM-GLIMS optical data, ground-based lightning and atmospheric electric field data are analyzed. From the JEM-GLIMS and ground-based lightning data, the latitudinal/seasonal/regional dependences of the Z-value are quantitatively and first estimated in the world. In addition, the 3-dimensional GEC model with the spatial and temporal resolution of 0.2x0.2 deg and 5 min in the 0-80km altitude range is newly developed. The quantitative comparison between the model results and observational data revealed that the global lightning activities contribute only ~20% of the total electrical current to the GEC.

Academic Significance and Societal Importance of the Research Achievements

本研究によって明らかとなったZ値の緯度分布と季節・地域依存性は，過去の研究とは比較にならないほど圧倒的な統計量と定量性の観点から世界トップと言え，世界標準となり得る重要な成果である。また，新規に開発した三次元全球電流回路モデルは，雷放電のみならず衛星観測に基づく世界降水量分布・雲分布も初期値に組み込み，高い時間・空間分解能で世界のあらゆる点の大気電場強度を算出できる点で画期的である。本研究で明らかとなった，雷放電が全球電流系の電流駆動源として約20%しか担っていないという事実は，革新的な成果といえる。

Research Products

• [Int'l Joint Research] ジョンズホプキンス大学/マサチューセッツ工科大学(米国)
• [Int'l Joint Research] スウェーデン宇宙公社(スウェーデン)
• [Int'l Joint Research] 中国科学院(中国)
• [Int'l Joint Research] アンダルシア天体物理研究所(スペイン)
• [Int'l Joint Research] 先端科学技術研究所(ASTI)/大気地球物理天文局(PAGASA)(フィリピン)
• [Int'l Joint Research]
• [Int'l Joint Research] ジョンズホプキンス大学/マサチューセッツ工科大学(米国)
• [Int'l Joint Research] スウェーデン宇宙公社(スウェーデン)
• [Int'l Joint Research] 中国科学院(中国)
• [Int'l Joint Research] アンダルシア天体物理研究所(スペイン)
• [Int'l Joint Research] 先端科学技術研究所(ASTI)/大気地球物理天文局(PAGASA)(フィリピン)
• [Int'l Joint Research]
• [Int'l Joint Research] スタンフォード大学/コロラド大学/マサチューセッツ工科大学(米国)
• [Int'l Joint Research] デンマーク工科大学(デンマーク)
• [Int'l Joint Research] アンダルシア天体物理学研究所(スペイン)
• [Int'l Joint Research] 中国科学院(中国)
• [Int'l Joint Research] スウェーデン宇宙公社(スウェーデン)
• [Journal Article] Optical Properties of Intracloud and Cloud-to-Ground Discharges Derived from JEM-GLIMS Lightning Observations (2019)
  • Author(s): Bandholnopparat, K., M. Sato, T. Ushio, T. Adachi, and Y. Takahashi
  • Journal Title: Journal of Atmospheric and Solar-Terrestrial Physics Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Spectroscopic Diagnostic of Halos and Elves Detected From Space‐Based Photometers (2018)
  • Author(s): Perez‐Invernon F. J.、Luque A.、Gordillo‐V?zquez F. J.、Sato M.、Ushio T.、Adachi T.、Chen A. B.
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 123 Issue: 22
  • DOI: 10.1029/2018jd029053
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Characteristics of Thunderstorm Structure and Lightning Activity Causing Negative and Positive Sprites (2018)
  • Author(s): Jing, Y., N. Liu, M. Sato, G. Lu, Y. Wang, and G. Feng
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 123 Issue: 15 Pages: 12917-12941
  • DOI: 10.1029/2017jd026759
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Initiation of a lightning search using the lightning and airglow camera onboard the Venus orbiter Akatsuki (2018)
  • Author(s): Takahashi, Y., (他22名), H. Ando, K. Sugiyama, H. Kashimura, S. Ohtsuki
  • Journal Title: Earth, Planets and Space Volume: 70 Issue: 1 Pages: 88-88
  • DOI: 10.1186/s40623-018-0836-2
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Matching algorithms of ELF-LEMPs and lightning geo-location data (2018)
  • Author(s): Tsurushima Daiki, Honma Noriyasu, Tsuchiya Fuminori, Sato Mitsuteru, and Takahashi Yukihiro
  • Journal Title: IEEJ Transactions Volume: 印刷中
  • NAID: 130006730640
  • Peer Reviewed
• [Journal Article] A gigantic jet observed over an mesoscale convective system in midlatitude region (2018)
  • Author(s): Yang Jing、Sato Mitsuteru、Liu Ningyu、Lu Gaopeng、Wang Yu、Wang Zhichao
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 123 Issue: 2 Pages: 977-996
  • DOI: 10.1002/2017jd026878
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Significantly high polarization degree of the very low-albedo asteroid (152679) 1998 KU2 (2018)
  • Author(s): Kuroda Daisuke、Ishiguro Masateru、Watanabe Makoto、Hasegawa Sunao、Sekiguchi Tomohiko、Naito Hiroyuki、Usui Fumihiko、Imai Masataka、Sato Mitsuteru、Kuramoto Kiyoshi
  • Journal Title: Astronomy & Astrophysics Volume: 611 Pages: 31-31
  • DOI: 10.1051/0004-6361/201732086
  • Peer Reviewed
• [Journal Article] Photonuclear reactions triggered by lightning discharge (2017)
  • Author(s): Enoto Teruaki、Wada Yuuki、Furuta Yoshihiro、Nakazawa Kazuhiro、Yuasa Takayuki、Okuda Kazufumi、Makishima Kazuo、Sato Mitsuteru、Sato Yousuke、Nakano Toshio、Umemoto Daigo、Tsuchiya Harufumi
  • Journal Title: Nature Volume: 551 Issue: 7681 Pages: 481-484
  • DOI: 10.1038/nature24630
  • Peer Reviewed
• [Journal Article] Absolute calibration of brightness temperature of the Venus disk observed by the Longwave Infrared Camera onboard Akatsuki (2017)
  • Author(s): Tetsuya Fukuhara, Makoto Taguchi, Takeshi Imamura, Akane Hayashitani, Takeru Yamada, Masahiko Futaguchi, Toru Kouyama, Takao M. Sato, Mao Takamura, Naomoto Iwagami, Masato Nakamura, Makoto Suzuki, Munetaka Ueno, George L. Hashimoto, Mitsuteru Sato, Seiko Takagi
  • Journal Title: Earth, Planets and Space Volume: 69:141 Issue: 1 Pages: 1-9
  • DOI: 10.1186/s40623-017-0727-y
  • NAID: 120006486822
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Polarimetric study of near-Earth asteroid (1566) Icarus (2017)
  • Author(s): Ishiguro Masateru、Kuroda Daisuke、Watanabe Makoto、Bach Yoonsoo P.、Kim Jooyeon、Lee Mingyeong、Sekiguchi Tomohiko、Naito Hiroyuki、Ohtsuka Katsuhito、Hanayama Hidekazu、Hasegawa Sunao、Usui Fumihiko、Urakawa Seitaro、Imai Masataka、Sato Mitsuteru、Kuramoto Kiyoshi
  • Journal Title: The Astronomical Journal Volume: 154 Issue: 5 Pages: 180-180
  • DOI: 10.3847/1538-3881/aa8b1a
  • Peer Reviewed
• [Journal Article] Solar 27-day rotational period detected in wide-area lightning activity in Japan (2017)
  • Author(s): Miyahara Hiroko、Higuchi Chika、Terasawa Toshio、Kataoka Ryuho、Sato Mitsuteru、Takahashi Yukihiro
  • Journal Title: Annales Geophysicae Volume: 35 Issue: 3 Pages: 583-588
  • DOI: 10.5194/angeo-35-583-2017
  • Peer Reviewed / Open Access
• [Journal Article] Broad-lined Supernova 2016coi with a Helium Envelope (2017)
  • Author(s): Masayuki Yamanaka et al. (including Nozomu Tominaga)
  • Journal Title: The Astrophysical Journal Volume: 837 Issue: 1 Pages: 1-8
  • DOI: 10.3847/1538-4357/aa5f57
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Identification of sprites in JEM-GLIMS nadir observations and their spatial distributions (2017)
  • Author(s): Sato, M., T. Adachi, T. Ushio, T. Morimoto, M. Kikuchi, H. Kikuchi, M. Suzuki, A. Yamazaki, Y. Takahashi, R. Ishida, Y. Sakamoto, K. Yoshida, and Y. Hobara
  • Journal Title: Terrestrial, Atmospheric and Oceanic Sciences Volume: 印刷中 Issue: 4 Pages: 545-561
  • DOI: 10.3319/tao.2016.09.21.02
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Sprite possibly produced by two distinct positive cloud-to-ground lightning flashes (2017)
  • Author(s): Yang Jing、Lu Gaopeng、Liu Ningyu、Sato Mitsuteru、Feng Guili、Wang Yu、Chou Jung-Kuang
  • Journal Title: Terrestrial, Atmospheric and Oceanic Sciences Volume: 28 Issue: 4 Pages: 609-624
  • DOI: 10.3319/tao.2016.07.22.01
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Solar 27-day rotational period detected in a wide-area lightning activity in Japan (2017)
  • Author(s): Miyahara, H., C. Higuchi, T. Terasawa, R. Kataoka, M. Sato, and Y. Takahashi
  • Journal Title: Annales Geophysicae Communicates Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Simultaneous observations of optical lightning from space and LF band lightning waveforms from the ground (2017)
  • Author(s): Kikuchi, H., M. Sato, T. Ushio, T. Morimoto, M. Kikuchi, A. Yamazaki, M. Suzuki, R. Ishida, Y. Sakamoto, T. Wu, and Z. Kawasaki
  • Journal Title: Geophysical Research Letters Volume: 44 Issue: 2 Pages: 1123-1131
  • DOI: 10.1002/2016gl071783
  • Peer Reviewed
• [Journal Article] An overview of VHF lightning observations by digital interferometry from ISS / JEM-GLIMS (2016)
  • Author(s): Morimoto, T., H. Kikuchi, M. Sato, T. Ushio, A. Yamazaki, M. Suzuki, R. Ishida, Y. Sakamoto, K. Yoshida, Y. Hobara, T. Sano, T. Abe, and Z-I. Kawasaki
  • Journal Title: Earth, Planets and Space Volume: 68 Issue: 1 Pages: 145-145
  • DOI: 10.1186/s40623-016-0522-1
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Studies of dust and discharges around a Martian rover with onboard hazard analyses using electromagnetic and acoustic wave measurements (2016)
  • Author(s): Yamamoto, M., M. Sato, K. Ishisaka, Y. Takahashi, K. Ogohara, M. Kamogawa, and H. Miyamoto
  • Journal Title: Ttansactions of the Japan Society for Aeronatical and Space Sciences Volume: 14 Issue: ists30 Pages: 41-45
  • DOI: 10.2322/tastj.14.pk_41
  • NAID: 130005421111
  • Peer Reviewed
• [Journal Article] Identifying the occurrence of lightning and transient luminous evetns by nadir spectrophotometric observation (2016)
  • Author(s): Adachi, T., M. Sato, T. Ushio, A. Yamazaki, M. Suzuki, M. Kikuchi, Y. Takahashi, U. Inan, I. Linscott, Y. Hobara, H. Frey, S. Mende, A. Chen, R-R. Hsu, and K. Kusunoki
  • Journal Title: Journal of Atmospheric and Solar-Terrestrial Physics Volume: 145 Pages: 85-97
  • DOI: 10.1016/j.jastp.2016.04.010
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Horizontal distributions of sprites derived from the JEM-GLIMS nadir observations (2016)
  • Author(s): Sato, M., M. Mihara, T. Adachi, T. Ushio, T. Morimoto, M. Kikuchi, H. Kikuchi, M. Suzuki, A. Yamazaki, Y. Takahashi, U. Inan, I. Linscott, R. Ishida, Y. Sakamoto, K. Yoshida, and Y. Hobara
  • Journal Title: Journal of Geophysical Research - Atmosphere Volume: 印刷中 Issue: 7 Pages: 3171-3194
  • DOI: 10.1002/2015jd024311
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Relation between Charge Amounts of Lightning Discharges Derived from ELF Waveform Data and Severe Weather (2016)
  • Author(s): Shimizu, C., M. Sato, Y. Hongo, F. Tsuchiya, and Y. Takahashi
  • Journal Title: IEEJ Transactions on Fundamentals and Materials Volume: 136 Issue: 5 Pages: 252-258
  • DOI: 10.1541/ieejfms.136.252
  • NAID: 130005149180
  • ISSN: 0385-4205, 1347-5533
  • Peer Reviewed
• [Presentation] Relation between Lightning and Typhoon Activities in the Western Pacific Region (2018)
  • Author(s): Sato, M., Y. Takahashi, H. Kubota, K. Yamashita, J. Hamada, and J. J. Marciano
  • Organizer: AGU Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] High-Energy Radiation Phenomena from Winter Thunderstorms and Lightning in Japan (2018)
  • Author(s): Enoto, T., Y. Wada, Y. Furuta, K. Nakazawa, T. Yuasa, K. Makishima, M. Sato, Y. Sato, D. Umemoto, H. Tsuchiya, G. S. Bowers, M. Kamogawa, Y. Nakamura, T. Morimoto, and D. Smith
  • Organizer: AGU Fall Meeting 2018
  • Int'l Joint Research / Invited
• [Presentation] Estimation of the IC/CG Ratio Using JEM-GLIMS and Ground-based Lightning Network Data and Its Effect on the Global Electric Circuit (2018)
  • Author(s): Kittanapat, B., M. Sato, T. Adachi, T. Ushio, and Y. Takahashi
  • Organizer: AGU Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] アジア域雷放電検出網で観測された雷活動と台風強度発達との関係 (2018)
  • Author(s): 佐藤光輝, 高橋幸弘, 山下幸三, 久保田尚之, 浜田純一, Joel J. Marciano
  • Organizer: 第144回地球電磁気・地球惑星圏学会
• [Presentation] 惑星大気対流構造の解明にむけた雷放電探査観測計画 (2018)
  • Author(s): 佐藤光輝, 高橋幸弘, 春山純一, 今井正尭
  • Organizer: 気象学会2018年度秋季大会
• [Presentation] Development of Lightning Observation Network in the Western Pacific Region for the Intensity Prediction of Severe Weather and Tropical Cyclone (2018)
  • Author(s): Sato, M., Y. Takahashi, H. Kubota, K. Yamashita, J. Hamada, and J. J. Marciano
  • Organizer: 16th International Conference on Atmospheric Electricity
  • Int'l Joint Research
• [Presentation] The Ranking of Africa in Daily Global Lightning Activity (2018)
  • Author(s): Williams, E., A. Guha, Y. Liu, R. Boldi, E. Pracser, R. Said, G. Satori, T. Bozoki, J. Bor, M. Atkinson, C. Beggan, S. Cummer, F. Lyu, B. Fain, Y. Hobara, A. Koloskov, A. Kulak, R. McCraty, J. Mlynarczyk, J. Montanya, R. Moore, M. Neska, P. Ortega, C. Price, R. Rawat, M. Sato, A. Sinha, and Y. Yampolski
  • Organizer: 16th International Conference on Atmospheric Electricity
  • Int'l Joint Research
• [Presentation] Multi-point Measurement Campaigns of Gamma Rays from Thunderclouds and Lightning in Japan (2018)
  • Author(s): Enoto, T., Y. Wada, Y. Furuta, K. Nakazawa, T. Yuasa, K. Okuda, K. Makishima, M. Sato, Y. Sato, T. Nakano, D. Umemoto, H. Tsuchiya, M. Kamogawa, G. Bowers, D. Smith, T. Morimoto, Y. Nakamura, and D. Wang
  • Organizer: 16th International Conference on Atmospheric Electricity
  • Int'l Joint Research
• [Presentation] Latitudinal, Regional, and Seasonal Dependences of IC/CG Ratio Derived from JEM-GLIMS and Ground-based Lightning Network Data (2018)
  • Author(s): Kittanapat, B., M. Sato, T. Adachi, T. Ushio, and Y. Takahashi
  • Organizer: 16th International Conference on Atmospheric Electricity
  • Int'l Joint Research
• [Presentation] Simple Models of Lightning Clustering at the Planetary Scale: Implications for Remote Sensing Surveys (2018)
  • Author(s): Lorenz, R., Y. Takahashi, M. Sato, and K. Yamashita
  • Organizer: 16th International Conference on Atmospheric Electricity
  • Int'l Joint Research
• [Presentation] ULAT Project: Lightning Observations in the Philippines and Western Pacific Region for the Intensity Prediction of Severe Weather (2018)
  • Author(s): Sato, M., Y. Takahashi, H. Kubota, K. Yamashita, J. Hamada, and J. J. Marciano
  • Organizer: Asia Oceania Geosciences Society (AOGS) 15th Annual Meeting
  • Int'l Joint Research
• [Presentation] Observation study for understanding the relationship between lightning activity and tropical cyclone intensity in the Philippine Sea (2018)
  • Author(s): H. Kubota, Y. Takahashi, Sato, M., K. Yamashita, and J. Hamada
  • Organizer: Asia Oceania Geosciences Society (AOGS) 15th Annual Meeting
  • Int'l Joint Research
• [Presentation] Lightning Observations in the Philippines and Western Pacific Region for the Intensity Prediction of Severe Weather (2018)
  • Author(s): Sato, M., Y. Takahashi, K. Yamashita, H. Kubota, J. Hamada, and J. J. Marciano
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] Latitudinal, Regional, and Seasonal Dependences of the IC to CG Ratio Derived from JEM-GLIMS and the Ground-based Lightning Network Data (2018)
  • Author(s): Kittanapat, B., M. Sato, Y. Takahashi, T. Adachi, and T. Ushio
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] 地吹雪発生時の大気電場と雪粒子分布の時系列変化 (2018)
  • Author(s): 源泰拓, 鴨川仁, 門倉昭, 平沢尚彦, 佐藤光輝
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] Relation between Lightning Electrical Parameters and Intensity of Typhoon Haiyan (2018)
  • Author(s): Niwa, S., M. Sato, and Y. Takahashi
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] Global Occurrence Rates of Lightning, Elves, and Sprites and Their LT/Monthly/Seasonal Dependences Derived from JEM-GLIMS Observations (2018)
  • Author(s): Sato, T., M. Sato, Y. Takahashi, T. Ushio
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] ULAT Project: Lightning Observations in the Philippines for the Intensity Prediction of Severe Weather (2018)
  • Author(s): Sato, M., Y. Takahashi, K. Yamashita, H. Kubota, J. Hamada, and J. J. Marciano
  • Organizer: EGU General Assembly 2018
  • Int'l Joint Research
• [Presentation] Photonuclear reactions triggered by lightning discharges in a Japanese winter thunderstorm (2018)
  • Author(s): Enoto, T., Y. Wada, Y. Furuta, K. Nakazawa, T. Yuasa, K. Okuda, K. Makishima, M. Sato, Y. Sato, T. Nakano, D. Umemoto, H. Tsuchiya, and GROWTH collaboration
  • Organizer: EGU General Assembly 2018
  • Int'l Joint Research
• [Presentation] 宇宙空間からの雷放電光学・電波観測 (2018)
  • Author(s): 佐藤光輝
  • Organizer: 「雷雲と宇宙線の相互作用に伴う高エネルギー現象」研究会
• [Presentation] 雷雲ガンマ線の観測プロジェクトと雷での光核反応の検出 (2018)
  • Author(s): 榎戸輝揚, 和田有希, 古田禄大, 中澤知洋, 湯浅孝行, 奥田和史, 牧島一夫, 佐藤光輝, 佐藤陽祐, 中野俊男, 楳本大悟, 土屋晴文
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] 地上と宇宙から探る雷放電に同期する突発ガンマ線観測への取り組み (2018)
  • Author(s): 中澤知洋, 榎戸輝揚, 和田有希, 古田禄大, 松元崇弘, 春日知明, 奥田和史, 湯浅孝行, 中野俊男, 楳本大悟, 加藤博, 牧島一夫, 佐藤光輝, 佐藤陽祐, 土屋晴文, ほかGROWTHコラボレーション
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 超長波(VLF帯)空電観測を用いた落雷位置標定システムの位置精度評価 (2018)
  • Author(s): 成田知巳, 佐藤光輝, 亀田貴雄, 坂野井健, 土屋史紀, 石井勝, 熊田亜紀子, 鴨川仁, 石川裕彦, 金子英治, 原田繁実, 工藤剛史, 茆原正昭, 皆川郁靖
  • Organizer: 平成30年電気学会全国大会
• [Presentation] SATREPS project, ULAT, for development of extreme weather monitoring and alert system in the Philippines (2018)
  • Author(s): Takahashi, Y., M. Sato, H. Kubota, K. Yamashita, J. Hamada, J. Matsumoto, J. Marciano, G.J. Perez, and E. Castro
  • Organizer: New Dimensions for Natural Hazards in Asia
  • Int'l Joint Research
• [Presentation] 3-D cloud monitoring by the micros-satellites in SATREPS project, ULAT (2018)
  • Author(s): Takahashi, Y., T. Ishida, M. Sato, Y. Sakamoto, G.J. Perez, J.Marciano, and H. Kubota
  • Organizer: New Dimensions for Natural Hazards in Asia
  • Int'l Joint Research
• [Presentation] Heavy rainfall in Metro Manila, Philippines during the summer monsoon associated with tropical cyclone (2018)
  • Author(s): Kubota, H., Y. Takahashi, M. Sato, K. Yamashita, and J. Hamada
  • Organizer: New Dimensions for Natural Hazards in Asia
  • Int'l Joint Research
• [Presentation] 極域で観測された大気電場・ELF 波動データの複合解析による全地球電気回路の研究 (2018)
  • Author(s): 源泰拓, 鴨川仁, 門倉昭, 佐藤光輝
  • Organizer: 日本大気電気学会第96回研究発表会
• [Presentation] Lightning hunt in Venus with LAC onboard Akatsuki spacecraft (2018)
  • Author(s): Takahashi, Y., M. Sato, and M. Imai
  • Organizer: USNC-URSI National Radio Science Meeting
  • Int'l Joint Research
• [Presentation] 超長波(VLF帯)空電観測を用いた落雷位置標定システムによる落雷分布 (2017)
  • Author(s): 大野高寛, 山田素輝, 成田知巳, 佐藤光輝, 坂野井健, 土屋史紀, 金子英治, 原田繁実, 工藤剛史, 茆原正昭, 三塚洋明
  • Organizer: 平成29年電気学会全国大会
  • Place of Presentation: 富山大学五福キャンパス（富山県・富山市）
  • Year and Date: 2017-03-15
• [Presentation] ELF帯電波観測による雷放電の電荷量推定とダウンバーストの予測可能性について (2017)
  • Author(s): 清水千春, 佐藤光輝, 高橋幸弘, 土屋史紀, 本郷保二, 阿部修司, 吉川顕正
  • Organizer: 日本大気電気学会第95回研究発表会
  • Place of Presentation: 神戸研究学園都市大学利用施設（兵庫県・神戸市）
  • Year and Date: 2017-01-06
• [Presentation] 国際宇宙ステーションGLIMSミッションにより観測された雷発光強度を用いた雷の電気的特性導出に関する研究 (2017)
  • Author(s): 鈴木克徳, 柿沼遠方, 芳原容英, 佐藤光輝, 高橋幸弘, 足立透, 牛尾知雄, 河崎善一郎, 森本健志, 山崎敦, 鈴木睦, I. Linscott, U. Inan
  • Organizer: 日本大気電気学会第95回研究発表会
  • Place of Presentation: 神戸研究学園都市大学利用施設（兵庫県・神戸市）
  • Year and Date: 2017-01-06
• [Presentation] 地吹雪発生時の地表大気電場変動の発生機構 (2017)
  • Author(s): 石川智也, 鈴木裕子, 源泰拓, 門倉昭, 佐藤光輝, 鴨川仁
  • Organizer: 日本大気電気学会第95回研究発表会
  • Place of Presentation: 神戸研究学園都市大学利用施設（兵庫県・神戸市）
  • Year and Date: 2017-01-06
• [Presentation] Development of lightning observation network in the western Pacific region for the intensity prediction of severe weather (2017)
  • Author(s): Sato, M.，Y. Takahashi, K. Yamashita, H. Kubota, J. Hamada, E. Momota, and J.J. Marciano
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Study on the thermal structure of the Venusian polar atmosphere (2017)
  • Author(s): Takamura, M., M. Taguchi, T. Fukuhara, T. Kouyama, T. Imamura, T.M. Sato, M. Futaguchi, T. Yamada, M. Nakamura, N. Iwagami, M. Suzuki, M. Ueno, M. Sato, G. Hashimoto, and S. Takagi
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Extreme weather monitoring system with combination of micro-satellites and ground-based observation networks (2017)
  • Author(s): Takahashi, Y., M. Sato, E.C. Castro, T. Ishida, J.J. Marciano, H. Kubota, and K. Yamashita
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Lightning charge moment changes estimated by high speed photometric observations from ISS (2017)
  • Author(s): Kono, S., K. Suzuki, Y. Hobara, M. Sato, Y. Takahashi, T. Adachi, T. Ushio, and M. Suzuki
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Estimation of the IC to CG ratio using JEM-GLIMS and ground-based lightning network data (2017)
  • Author(s): Bandholnopparat, K., M. Sato, Y. Takahashi, T. Adachi, and T. Ushio
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Monitoring of lightning activity based on simultaneous measurement of electric field and electric field-change in the Tokyo metropolitan area (2017)
  • Author(s): Yamashita, K., H. Ohya, Y. Takahashi, and M. Sato
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Verification of a Schumann resonance inversion method for global lightning activity in absolute units (2017)
  • Author(s): Williams, E., A. Guha, Y. Liu, R. Boldi, E. Pracser, R. Said, G. Satori, T. Bozoki, J. Bor, M. Atkinson, C. Beggan, S. Cummer, F. Lyu, B. Fain, Y. Hobara, K. Alexander, A. Kulak, R. McCraty, J. Mlynarczyk, J. Montanya, R.C. Moore, M. Neska, P. Ortega, C. Price, R. Rawat, M. Sato, A.K. Sinha, and Y. Yampolski
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] 極域で観測された大気電場・ELF波動データの複合解析による全地球電気回路の研究 (2017)
  • Author(s): 源泰拓, 鴨川仁, 門倉昭, 佐藤光輝
  • Organizer: 第8回極域科学シンポジウム
• [Presentation] Development of extreme weather monitoring and information sharing system in Metro Manila (2017)
  • Author(s): Kubota, H., Y. Takahashi, M. Sato, K. Yamashita, and J. Hamada
  • Organizer: UNESCO-JASTIP Joint Symposium on Intra-Regional Water Security and Disaster Management
  • Int'l Joint Research
• [Presentation] シビア気象規模発達の直前予測にむけたア ジア域における雷放電観測網の構築, (2017)
  • Author(s): 佐藤光輝, 高橋幸弘, 山下幸三, 久保田尚之, 濱田純一, 百田恵理子, M. Joel,
  • Organizer: 第142回地球電磁気・地球惑星圏学会
• [Presentation] あかつき搭載 LAC による金星雷放電捜索の現状 (2017)
  • Author(s): 高橋幸弘, 今井正尭, 佐藤光輝
  • Organizer: 第142回地球電磁気・地球惑星圏学会
• [Presentation] Study on the thermal structure of the Venusian polar atmosphere (2017)
  • Author(s): 高村真央, 田口真, 福原哲哉, 神山徹, 今村剛, 佐藤隆雄, 二口将彦, 中村正人, 岩上直幹, 鈴木睦, 上野宗孝, 佐藤光輝, はしもとじょーじ, 高木聖子
  • Organizer: 第142回地球電磁気・地球惑星圏学会
• [Presentation] 極域で観測された大気電場・ELF波動データの複合解析による全地球電気回路の研究 (2017)
  • Author(s): 源泰拓, 鴨川仁, 門倉昭, 佐藤光輝
  • Organizer: 第142回地球電磁気・地球惑星圏学会
• [Presentation] Rigorous validation of a Schumann resonance method for global lightning mapping in absolute units (2017)
  • Author(s): Williams, E., A. Guha, Y. Liu, R. Boldi, E. Pracser, R. Said, G. Satori, M. Atkinson, C. Beggan, S. Cummer, B. Fain, Y. Hobara, A. Koloskov, A. Kulak, R. McCraty, J. Mlynarczyk , J. Montanya, R. Moore, M. Neska, P. Ortega, C. Price, R. Rawat, M. Sato, A. Sinha, and Y. Yampolski
  • Organizer: 1st International Symposium on Lightning Physics and Lightning Meteorology
  • Int'l Joint Research
• [Presentation] SPART電波望遠鏡/あかつき衛星/ALMA/Pirka望遠鏡による金星の連携観測プロジェクト (2017)
  • Author(s): 前澤裕之, 原口大輝, 青木亮介, 築山大輝, 松本怜, 西田侑治, 西合和矢, 江草芙実, Yeon Joo Lee, 佐藤隆雄, 中村正人, 田口真, 福原哲哉, 大澤健太郎, 高橋英則, 田中培生, 今村剛, 佐川英夫, 奥村真一郎, 今井正尭, 佐藤光輝, 高橋幸弘, 他 SPART/AKATSUKI/NICE/Pirikaチーム
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Optical and electromagnetic characteristics of lightning and TLEs derived from the JEM-GLIMS nadir observations (2017)
  • Author(s): Sato, M., H. Kikuchi, T. Ushio, T. Adachi, T. Sato, T. Morimoto, M. Suzuki, A. Yamazaki, and Y. Takahashi
  • Organizer: 32nd URSI General Assembly & Scientific Symposium
  • Int'l Joint Research / Invited
• [Presentation] Characteristic of polar dipoles seen by LIR onboard the Venus orbiter Akatsuki (2017)
  • Author(s): Takamura, M., M. Taguchi, T. Fukuhara, T. Kouyama, T, Imamura, T.M. Sato, M. Futaguchi, T. Yamada, M. Nakamura, N. Iwagami, M. Ssuzuki, M. Ueno, M. Sato, G. Hashimoto, and S. Takagi
  • Organizer: Asia Oceania Geosciences Society (AOGS) 14th Annual Meeting
  • Int'l Joint Research
• [Presentation] Characteristic features in cloud-top temperature of Venus (2017)
  • Author(s): Taguchi, M., T. Fukuhara, T. Kouyama, T. Imamura, T.M. Sato, M. Takamura, T. Yamada, M. Futaguchi, N. Iwagami, M. Ssuzuki, M. Ueno, M. Sato, G. Hashimoto, S. Takagi, and M. Nakamura
  • Organizer: Asia Oceania Geosciences Society (AOGS) 14th Annual Meeting
  • Int'l Joint Research
• [Presentation] Precision of brightness temperature for Akatsuki LIR observation on orbit (2017)
  • Author(s): Fukuhara, T., A. Hayashitani, M. Taguchi, T. Imamura, T. Kouyama, T.M. Sato, G. Hashimoto, M. Sato, and M. Nakamura
  • Organizer: Asia Oceania Geosciences Society (AOGS) 14th Annual Meeting
  • Int'l Joint Research
• [Presentation] Deployment plan of ELF observation system in Asian countries to monitor severe weather development, (2017)
  • Author(s): Sato, M., Y. Takahashi, H. Kubota, and C. Shimizu,
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] 国際宇宙ステーションから観測された雷発光放射照度を用いた雷の電気的特性導出に関する研究 (2017)
  • Author(s): 芳原容英, 鈴木克徳, 柿沼遠方, 佐藤光輝, 高橋幸弘, 足立透, 牛尾知雄, 河崎善一郎, 森本健志, 山崎敦, 鈴木睦, I. Linscott, U. Inan
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Solar 27-day rotational period detected in a wide-area lightning activity in Japan (2017)
  • Author(s): 宮原ひろ子, 寺澤敏夫, 片岡龍峰, 佐藤光輝, 高橋幸弘
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] 航空機による雷放電の観測 (2017)
  • Author(s): 牛尾知雄, 佐藤光輝, 菊池博史, 妻鹿友昭, 吉川栄一, 中村 佳敬
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Characteristics of downburst occurrences derived from ground-based lightning and meteorological observations (2017)
  • Author(s): Shimizu, C., M. Sato, and Y. Takahashi
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Morphology of Venusian upper clouds as seen by thermal infrared emission (2017)
  • Author(s): 山田武尊, 田口真, 福原哲哉, 神山徹, 今村剛, 佐藤隆雄, 二口将彦, 高村真央, 岩上直幹, 鈴木睦, 上野宗孝, 渡部重十, 山田学, 山崎敦, 佐藤光輝, はしもとじょーじ, 高木聖子, 中村正人
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Characteristic features in cloud-top temperature of Venus (2017)
  • Author(s): 田口真, 福原哲哉, 神山徹, 今村剛, 佐藤隆雄, 二口将彦, 高村真央, 山田武尊, 岩上直幹, 鈴木睦, 上野宗孝, 佐藤光輝, はしもとじょーじ, 高木聖子, 中村正人
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Characteristic of polar dipoles seen by LIR onboard the Venus orbiter Akatsuki (2017)
  • Author(s): 高村真央, 田口真, 福原哲哉, 神山徹, 今村剛, 佐藤隆雄, 二口将彦, 山田武尊, 中村正人, 岩上直幹, 鈴木睦, 上野宗孝, 佐藤光輝, はしもとじょーじ, 高木 聖子
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Frequent appearance of large stationary gravity waves in Venus atmosphere (2017)
  • Author(s): 神山徹, 今村剛, 田口真, 福原哲哉, 佐藤隆雄, はしもとじょーじ, 二口将彦, 岩上直幹, 鈴木睦, 上野宗孝, 佐藤光輝, 高木聖子, 佐藤毅彦, 中村正人
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Correction of brightness offset seen in Akatsuki LIR image (2017)
  • Author(s): 福原哲哉, 林谷茜, 田口真, 今村剛, 神山徹, 佐藤隆雄, はしもとじょーじ, 佐藤光輝, 岩上直幹, 中村正人
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Hunt for optical lightning flash in Venus using LAC onboard Akatsuki and ground telescope (2017)
  • Author(s): Takahashi, Y., M. Sato, and M. Imai
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Heavy rainfall observation in Metro Manila, Philippines for understanding the relation of lightning activity and tropical cyclone (2017)
  • Author(s): Kubota, H., Y. Takahashi, and M. Sato
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Matching algorithms of ELF-LEMPs and lightning geo-location data (2017)
  • Author(s): Tsurushima, D., N. Honma, F. Tsuchiya, M. Sato, and Y. Takahashi
  • Organizer: 4th International Symposium on Winter Lightning (ISWL2017)
  • Int'l Joint Research
• [Presentation] Operation of lightning detection network and micro-satellites for nowcast of thunderstorm and tropical cyclone activities, (2017)
  • Author(s): Sato, M., Y. Takahashi, H. Kubota, E. Momota, and J. Marciano,
  • Organizer: EGU General Assembly 2017
  • Int'l Joint Research
• [Presentation] 北海道大学における地球惑星観測装置群の現状と課題 (2017)
  • Author(s): 佐藤光輝
  • Organizer: 名古屋大学宇宙地球環境研究所研究集会「太陽地球系科学に於ける地上観測の現状と課題」
  • Place of Presentation: 九州大学西新プラザ（福岡県・福岡市）
• [Presentation] Global occurrence rates and their LT/monthly/seasonal variations of lightning, elves, and sprites derived from JEM-GLIMS observations (2016)
  • Author(s): Sato, M.，T. Sato，T. Adachi，T. Ushio，T. Morimoto，M. Suzuki，A. Yamazaki，and Y. Takahashi
  • Organizer: AGU Fall Meeting 2016
  • Place of Presentation: サンフランシスコ（アメリカ合衆国）
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] あかつき LAC による金星雷観測の進捗 (2016)
  • Author(s): 高橋幸弘, 佐藤光輝, 今井正尭
  • Organizer: 第30回大気圏シンポジウム
  • Place of Presentation: 宇宙科学研究所（神奈川県・相模原市）
  • Year and Date: 2016-12-05
• [Presentation] スプライトを誘起した雷放電による上空電子密度擾乱の再現 (2016)
  • Author(s): 佐藤光輝, 平木康隆, 足立透，牛尾知雄，森本健志，菊池博史，鈴木睦，山崎敦，高橋幸弘
  • Organizer: 第140回地球電磁気・地球惑星圏学会
  • Place of Presentation: 九州大学伊都キャンパス(福岡県・福岡市）
  • Year and Date: 2016-11-20
• [Presentation] Optical ground-based observation of Venusian lightning in 2015 (2016)
  • Author(s): 今井正尭, 高橋幸弘, 佐藤光輝
  • Organizer: 第140回地球電磁気・地球惑星圏学会
  • Place of Presentation: 九州大学伊都キャンパス(福岡県・福岡市）
  • Year and Date: 2016-11-20
• [Presentation] ELF帯電波観測により推定した雷放電の放電電荷量を用いたダウンバースト現象の予測可能性 (2016)
  • Author(s): 清水千春, 佐藤光輝, 高橋幸弘, 土屋史紀, 本郷保二, 阿部修司, 吉川顕正
  • Organizer: 第140回地球電磁気・地球惑星圏学会
  • Place of Presentation: 九州大学伊都キャンパス(福岡県・福岡市）
  • Year and Date: 2016-11-20
• [Presentation] あかつきによる雷検出の現状 (2016)
  • Author(s): 高橋幸弘, 佐藤光輝, 今井正尭, 渡部重十
  • Organizer: 日本気象学会2016年度秋季大会
  • Place of Presentation: 名古屋大学東山キャンパス（愛知県・名古屋市）
  • Year and Date: 2016-10-26
• [Presentation] Global occurrence rates of lightning, sprites, and elves and their LT dependences derived from JEM-GLIMS nadir observations (2016)
  • Author(s): Sato, M., T. Sato, T. Adachi, T. Ushio, T. Morimoto, H. Kikuchi, M. Suzuki, A. Yamazaki, Y. Takahashi, U. Inan, I. Linscott, and Y. Hobara
  • Organizer: Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-07-31
  • Int'l Joint Research / Invited
• [Presentation] Detection of optical lightning flashes in Venus and Jupiter using spacecraft and ground-based telescope (2016)
  • Author(s): Takahashi, Y., M. Sato, M. Imai, S. Watanabe, and T. Imamura
  • Organizer: Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-07-31
  • Int'l Joint Research
• [Presentation] Monitoring of thunderstorm and typhoon using lightning detection network and micro-satellites in Southeast Asia (2016)
  • Author(s): Takahashi, Y., M. Sato, K, Yamashita
  • Organizer: Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-07-31
  • Int'l Joint Research
• [Presentation] JEM-GLIMS直下視観測から同定したスプライトの水平空間分布と親雷放電との関係 (2016)
  • Author(s): 佐藤光輝, 足立透, 佐藤剛志, 牛尾知雄, 森本健志, 鈴木睦, 山崎敦, 高橋幸弘
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] Future observations of lightning-exciting ELF waves in Asian region for the nowcasting of eevere weather development (2016)
  • Author(s): Sato, M., C. Shimizu, F. Tsuchiya, N. Honma, Y. Hongo, and Y. Takahashi
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] Relation between charge amounts of lightning discharges derived from ELF waveform data and severe weather (2016)
  • Author(s): Shimizu, C., M. Sato, Y. Takahashi, F. Tsuchiya, Y. Hongo, S. Abe, and A. Yoshikawa
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] 北陸冬季雷が下部電離圏に及ぼす影響 (2016)
  • Author(s): 森永洋介, 土屋史紀, 小原隆博, 三澤浩昭, 本間規泰, 佐藤光輝, 大矢浩代
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] 台風の発生と太陽活動の関係 (2016)
  • Author(s): 高橋幸弘, 佐藤光輝, 山下幸三
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] 雷放電・TLEsの全球発生分布および発生頻度と地方時間依存性 (2016)
  • Author(s): 佐藤剛志, 佐藤光輝, 牛尾知雄, 森本健志, 足立透, 鈴木睦, 山崎敦, 高橋幸弘
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Year and Date: 2016-05-22
• [Presentation] Challenge of lightning detection with LAC on board Akatsuki spacecraft (2016)
  • Author(s): Takahashi, Y., M. Sato, M. Imai, Y. Yair, G. Fischer, and K. Aplin
  • Organizer: EGU General Assembly 2016
  • Place of Presentation: ウィーン（オーストリア）
  • Year and Date: 2016-04-17
  • Int'l Joint Research
• [Presentation] Exploration for lightning in Venus with LAC onboard AKATSUKI (2016)
  • Author(s): Takahashi, Y., M. Imai, and M. Sato
  • Organizer: International Venus Conference 2016
  • Place of Presentation: オックスフォード（英国）
  • Year and Date: 2016-04-04
  • Int'l Joint Research
• [Remarks] JEM-GLIMSミッションホームページ
  • URL: http://www.ep.sci.hokudai.ac.jp/~jemglims/index.html
• [Remarks] 佐藤研究室ホームページ：研究内容
  • URL: http://www.ep.sci.hokudai.ac.jp/~msato/research.html
• [Remarks] 佐藤研究室ホームページ・研究内容
  • URL: http://www.ep.sci.hokudai.ac.jp/~msato/research.html
• [Remarks] 佐藤研究室ホームページ・研究内容
  • URL: http://www.ep.sci.hokudai.ac.jp/~msato/research.html