Updated on 2025/04/28

写真a

 
SHIMANO Taketo
 
Organization
Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Department of Science Earth Science Program Professor
Title
Professor

Degree

  • 博士（理学） ( 2003.1   東京大学 )

  • 修士 ( 1998.3   東京大学 )

  • 学士 ( 1996.3   東京大学 )

Research Interests

  • Suwanosejima

  • 桜島

  • 火山

  • 噴火推移予測

  • automatic ash sampling machine

  • マグマ

  • 自然現象観測・予測

  • 噴火モニタリング

  • 火山地質学

  • 岩石学

  • 火山爆発指標

  • 火山灰放出量

  • volcanic ash

  • 機械学習

  • 地質学

  • 噴出物システマティックス

  • 噴火様式

  • モニタリング

  • degassing processes of magma

  • マグマ

  • データ駆動

Research Areas

  • Natural Science / Solid earth sciences  / 火山学

  • Natural Science / Solid earth sciences  / 岩石学

Research History

  • Kagoshima University   Professor

    2023.10

  • National Research Institute for Earth Science and Disaster Prevention

    2024.4

  • Tokoha University   Faculty of Social and Environmental Studies

    2023.10 - 2024.9

  • Kyoto University

    2023.4

  • 東京大学地震研究所   外来研究員（併任）

    2023.4

  • National Research Institute for Earth Science and Disaster Prevention

    2022.2 - 2023.9

  • 東京大学地震研究所   火山噴火予知研究センター   客員教授（併任）

    2021.4 - 2023.3

  • Tokoha University   Faculty of Social and Environmental Studies   Professor

    2018.4 - 2023.9

  • The University of Tokyo   Earthquake Research Institute

    2016.4 - 2021.3

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Professional Memberships

  • Japan Association of Mineralogical Sciences

  • THE VOLCANOLOGICAL SOCIETY OF JAPAN

  • JAPAN GEOSCIENCE UNION

  • Mineralogical society of America

  • IAVCEI

  • American Geophysical Union

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Committee Memberships

  • 日本火山学会   各賞委員会  

    2024.7   

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    Committee type：Academic society

    副委員長

  • 日本火山学会   大会委員  

    2014.7 - 2024.6   

 

Papers

  • Taketo Shimano, Yuki Suzuki, Atsushi Yasuda, Fukashi Maeno, Takahiro Miwa, Masashi Nagai, Setsuya Nakada, Michihiko Nakamura .  The color systematics of volcanic ashfall samples in estimating eruption sequences: a case study of the 2017–2018 eruption at Shinmoe-dake, Kirishima volcano, Southwest Japan .  Earth, Planets and Space76 ( 1 )   2024.7

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    The color of pyroclasts is fundamental, because it reflects various magma properties and eruption processes, including particle morphology, chemistry, and petrological characteristics. However, deriving the componentry ratio (CR) of pyroclasts for ongoing eruption monitoring remains challenging due to the lack of a robust quantitative standard. The derivation of the CR, as well as other petrological analyses, is too laborious and time-consuming to introduce as a sustainable monitoring method. To address this, we employed spectroscopic colorimetry to rapidly and quantitatively describe eruptive product colors, enabling CR derivation based on clear, objective standards for ash particle classification. Through color spectroscopy of bulk and sieved ash samples, we analyzed the major size fraction for time-series samples during the waxing stage of the 2017–2018 Shinmoe-dake eruption in Kirishima volcano, Southwest Japan. Our findings reveal that the color changes in bulk ash systematically changed with the evolution of componentry. This temporal color change was due to an increase in the amount of vesicular particles with clear glass against dark angular lava particles, as well as a grain size change, which we interpret as an indication of a transition from phreatic/phreatomagmatic to magmatic eruption. Subsequently, the color of the ash changed when the amount of different lava particles increased gradually, coinciding with a shift toward a more dominant effusion of lava. As the lava effusion continued, a slight reddening of the ash, indiscernible to the naked eye, was clearly detected by the spectrometer before the onset of intermittent Vulcanian eruptions. We interpreted this reddening as oxidation resulting from decreased ascent speed and caprock formation, which accumulates overpressure for Vulcanian explosions. These results highlight the potential of rapid, objective color value and componentry derivation for sustainable quasi-real-time monitoring of ongoing eruption materials.

    Graphical Abstract

    DOI： 10.1186/s40623-024-02040-5

    Other Link： https://link.springer.com/article/10.1186/s40623-024-02040-5/fulltext.html

  • 嶋野岳人, 安田敦 .  噴火推移理解に向けた時系列物質データ導出と火山灰システマティクス構築のための歩みと展望 .  月刊地球45 ( 2 ) 65 - 74   2023.2噴火推移理解に向けた時系列物質データ導出と火山灰システマティクス構築のための歩みと展望

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    Authorship：Lead author  

  • 安田敦, 亀谷伸子, 嶋野岳人, 吉本充宏, 田島靖久 .  類似したテフラを識別・対比する定量的な方法の数学的な取り扱いについて .  月刊地球45 ( 2 ) 55 - 64   2023.2類似したテフラを識別・対比する定量的な方法の数学的な取り扱いについて

  • 嶋野岳人 .  諏訪之瀬島火山におけるマグマ供給推移のタイムスケールと 噴出物データの実際と課題 －開口型火山の一例として－ .  防災科学技術研究所研究資料 ( 487 ) 101 - 106   2023.2諏訪之瀬島火山におけるマグマ供給推移のタイムスケールと 噴出物データの実際と課題 －開口型火山の一例として－

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    Authorship：Lead author   Publishing type：Research paper (conference, symposium, etc.)  

  • NISHIMURA Takeshi, ISHIBASHI Hidemi, MORI Toshiya, JIBIKI Yasuhito, NAKAMICHI Haruhisa, SAITO Takeshi, SHIMANO Taketo, YOSHIMURA Shumpei, MIYABUCHI Yasuo .  Introduction of Special Series on “Volcanology Course for Next Generation Researchers” .  BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN66 ( 3 ) 133 - 134   2021.9Introduction of Special Series on “Volcanology Course for Next Generation Researchers”

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    Language：Japanese   Publisher：The Volcanological Society of Japan  

    DOI： 10.18940/kazan.66.3_133

  • Iwaki Yoshiharu, Ishibashi Hidemi, Hokanishi Natsumi, Yasuda Atsushi, Ishikawa Toru, Shimano Taketo .  Shallow conduit process of mafic subplinian eruption inferred from the groundmass texture of the 1235 scoria of Kirishima-Ohachi volcano, Japan. .  PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN2021   151 - 151   2021Shallow conduit process of mafic subplinian eruption inferred from the groundmass texture of the 1235 scoria of Kirishima-Ohachi volcano, Japan.

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    Language：Japanese   Publishing type：Research paper (other academic)   Publisher：The Volcanological Society of Japan  

    DOI： 10.18940/vsj.2021.0_151

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MISC

  • Visible microspectroscopy and systematics of ash particles of the 2018 eruption at Shinmoe-dake, Kirishima volcano

    嶋野岳人, 鈴木由希, 前野深, 安田敦, 三輪学央, 長井雅史

    日本火山学会講演予稿集   2021   2021

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    Publishing type：Research paper, summary (national, other academic conference)  

    J-GLOBAL

Presentations

  • Taketo Shimano   Continuous ash investigation trials for understanding eruption sequence in southern Kyushu, Japan   Invited

    Japan Geoscience Union Meeting 2024  2024.5 

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    Event date： 2024.5

    Language：English   Presentation type：Oral presentation (invited, special)  

  • K. Tani O, IshizukaT. OikawaH. MinamiM, NagaiT. Shimano, IMcIntoshM. NakamuraF, MaenoT, SanoT. MizunoT. Ukita, FIkegamiK. Ito   August 2021 eruption of the Fukutoku-Oka-no-Ba Volcano, Izu-Bonin Arc: Understanding the eruption dynamics from rapid response seafloor surveys  

    IAVCEI Scientific Assembly 2023, Feb, 2023  2023.2 

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    Event date： 2023.1 - 2023.2

    Language：English   Presentation type：Oral presentation (general)  

  • Shimano, T, Yasida. A, Miwa, T, Nakamura, M   Quantitative identification of ash particles by visible micro-spectroscopy for monitoring transition in eruption styles  

    IAVCEI2023, Scientific assembly  2023.2 

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    Event date： 2023.1 - 2023.2

    Language：English   Presentation type：Poster presentation  

  • Kaneko T, Yasuda A, Yoshimoto M, Shimano T, Fujii T, Nakada S   A05 Magmatic features and the magma plumbing system of Mt Fuji : a chemical study of scoria-fall layers  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • TERADA Akihiko, SHIMANO Taketo, KOYAMA Etsuro, AOYAMA Hiroshi, IIJIMA Sei   S17 Dynamics of Volcanic Gloud at Asama Volcano in 2004  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • Shimano Taketo, Iida Akiko, Yoshimoto Mitsuhiro, Yasuda Atsushi, Nakada Setsuya   S06 Petrological characteristics of the 2004 products at Asama Volcano  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • Yoshimoto Mitsuhiro, Koyaguchi Takehiro, Nakada Setuya, Hoshizumi Hideo, Ishizuka Yoshihiro, Furukawa Ryuta, Shinohara Hiroshi, Nogami Kenji, Onizawa Shinya, Nagai Masashi, Shimano Taketo, Koyama Etsuro, Iida Akiko, Kurokawa Masaru, Okayama Yuko, Nonaka Miyuki, Ysasuda Astushi   S05 Ejecta from the 2004 eruotions of Asama volcano  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • Nakada S, Uto K, Yoshimoto M, Sugimoto T, Shimano T, Kurokawa M, Hoshizumi H, Goto Y, Noguchi S, Oguri K   P53 Real images of magmatic conduit : progress of the conduit drilling in Unzen (Part 2)  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • Kurokawa Masaru, Nakada Setsuya, Yoshimoto Mitsuhiro, Shimano Taketo, Sugimoto Takeshi, Oguri Kazukiyo, Hoshizumi Hideo   P52 Magma history of Unzen, investigated using drilling slime of conduit drilling  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2004  The Volcanological Society of Japan

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    Event date： 2004

    Language：Japanese  

  • Yoshimoto Mitsuhiro, Shimano Taketo, Kaneko Takayuki, Yasuda Atsushi, Fujii Toshitsugu, Nakada Setsuya   Fuji scientific drilling project : Initial description of FJ-1,2,3,4 core  

    Annual Meeting of the Geological Society of Japan  2003  The Geological Society of Japan

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    Event date： 2003

    Language：Japanese  

  • Yasuda A, Kaneko T, Yoshimoto M, Shimano T, Nakada S, Fujii T   Fuji scientific drilling project (part 4) : Petrological study on lavaflows in FJ-1 ∿ FJ-3 cores  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2003  The Volcanological Society of Japan

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    Event date： 2003

    Language：Japanese  

  • Kaneko T, Yoshimoto M, Shimano T, Yasuda A, Fujii T, Nakada S, Uesugi Y   Stratigraphy and time-series chemical variation of scoria layers on the eastern slop of Mt. Fuji  

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2003  The Volcanological Society of Japan

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    Event date： 2003

    Language：Japanese  

  • 野口聡, 嶋野岳人, 寅丸敦志   Fragmentation直下におけるpoiseuille flow領域の存在 神津島天上山噴火の例  

    日本火山学会講演予稿集  2002 

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    Event date： 2002

  • Taketo Shimano, Atsushi Yasuda, Masato Iguchi   Current state evaluation and long-term prediction of volcanic activity based on historical tracking of volcanic ash deposits at Suwanosejima volcano  

    JpGU 2021  2021.6 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 嶋野岳人, 鈴木由希, 前野 深, 安田 敦, 三輪学央, 長井雅史   火山灰の顕微可視分光測定と火山灰システマティクスによる推移推定 ―新燃岳2018年噴火初期での検討―  

    日本火山学会秋季大会  2021.10 

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    Language：Japanese   Presentation type：Poster presentation  

  • Taketo Shimano   The systematics of volcanic ash and transitions in eruption styles - in the 1813 eruption at Suwanosejima volcano -  

    JpGU2022  2022.5 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 嶋野岳人, 井口正人, 安田敦   桜島火山における火山灰連続採取データの展開  

    日本火山学会2023年度秋季大会  2023.10 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 嶋野岳人, 安田敦   反射電子像を用いた火山灰の構成比の自動迅速導出 ―諏訪之瀬島1813年噴火での検討―  

    日本火山学会秋季大会  2022.10 

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    Language：Japanese   Presentation type：Poster presentation  

  • Taketo Shimano, Michihiko Nakamura   Improvement of quantitative classification of ash particles by micro-visible spectroscopy system  

    2024.10 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 嶋野岳人, 安田敦   分光測色計によるラピリサイズ火山噴出物試料の特徴記載のすすめ  

    日本地球惑星科学連合2023年大会  2023.5 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • KenichiroTani, Osamu Ishizuka, Hiroki Minami, Teruki Oikawa, Hajime Katayama, Yoshiaki Suzuki, Taketo Shimano, Masashi Nagai, Fukashi Maeno, Michihiko Nakamura, Naoto Jimi, Takashi Sano   Rapid response seafloor surveys of the Fukutoku-Oka-no-Ba Volcano, Izu-Bonin Arc: Unraveling the eruption dynamics of the August 2021 eruption  

    Japan Geoscience Union Meeting 2022, Jun 1, 2022  2022.6 

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    Presentation type：Oral presentation (general)  

  • Kenichiro Tani, Osamu Ishizuka, Hiroki Minami, Michihiko Nakamura, Teruki Oikawa, Hajime Katayama, Yoshiaki Suzuki, Taketo Shimano, Masashi Nagai, Fukashi Maeno, Takashi Sano, Iona M McIntosh, Koji Ito, Taisei Ukita, Naoto Jimi, Hironori Komatsu, Tatsuki Mizuno, Misato Sako   August 2021 Plinian eruption of Fukutoku-Oka-no-Ba Volcano, Izu-Bonin Arc: Constraints on the eruption dynamics from rapid response seafloor surveys  

    AGU Fall Meeting 2022, Dec 13, 2022  2022.12 

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    Presentation type：Oral presentation (general)  

  • Tani Kenichiro, Izhizuka Osamu, Minami Hiroki, Oikawa Teruki, Katayama Hajime, Suzuki Yoshiaki, Shimano Taketo, Nagai Masahi, Iona McIntosh, Maeno Fukashi, Nakamura Michihiko, Jimi Naoto, Mizuno Tatsuki, Ukita Taisei, Ikegami Fumihiko, Sano Takashi   August 2021 eruption of the Fukutoku-Oka-no-Ba Volcano, Izu-Bonin Arc: Latest results from the rapid response seafloor surveys  

    IAVCEI Submarine Volcanism Seminar, Nov 2, 2022  2022.11 

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    Language：English   Presentation type：Symposium, workshop panel (nominated)  

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Research Projects

  • 火山観測と火砕物分析による火山爆発を支配する変数の定量的解明

    Grant number：22KK0047  2022.4 - 2026.3

    日本学術振興会  科学研究費助成事業（学術研究助成基金助成金）  国際共同研究加速基金（国際共同研究強化(B)）

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    Authorship：Coinvestigator(s) 

  • Development of a method to identify and discriminate similar tephras erupted from a single volcano

    Grant number：20H01982  2020.4 - 2024.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

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    Grant amount：\17550000 （ Direct Cost: \13500000 、 Indirect Cost：\4050000 ）

  • 火山灰のシステマティックス構築に基づく噴火推移と火道進化過程の関係解明研究

    Grant number：20H01986  2020.4 - 2024.3

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    嶋野 岳人, 野口 里奈, 上木 賢太, 井口 正人, 桑谷 立, 安田 敦, 三輪 学央

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    Grant amount：\17810000 （ Direct Cost: \13700000 、 Indirect Cost：\4110000 ）

    本研究では，火山噴火推移に伴う火山灰色の変化をもとに，より詳細な多項目データから「火山灰のシステマティックス」を構築し，マグマ供給系・火道周辺環境の進化過程と噴火推移の関係解明をめざしている．具体的には，①大量の測色データが得られる火山灰試料に対し，マグマの結晶化や酸化，変質などの素過程に対応する変数を整理し，システマティックスを構築する（この際，従来は時間を要した岩石組織解析などの迅速化，新規項目導入による多変量化推進）．一方，②この手法を連続採取試料に適用し，多変量時系列解析からマグマ供給系や火道環境の進化過程の理解を進める（この際，統計数理手法に基づく情報抽出・モデルを構築）．
    初年度から６つの中目標・計画を策定し（①－１～３，②-１～３），研究を開始した．本年度は，①－２：大量連続試料データから，より高度な解析を要する「選抜試料」を抽出するスキーム構築について，これまでに開発した迅速画像解析プログラムを用いて，火山灰粒子の結晶度や形態による分類・選別を行った．①－３：異なる火山での共通指標導出については，諏訪之瀬島火山1813年噴火および2020年以降の活動に上記反射電子画像の解析プログラムを同一基準で導入・評価を行ったほか，新たに顕微可視分光法を用いて，諏訪之瀬島および新燃岳2018年火山灰粒子試料について定量記載することで，客観的粒子種分類を行った．
    残り３つの中期計画は，来年度以降の着手予定であったが，全体の進捗状況をみて一部を前倒しで進めた．すなわち，②－１：連続試料から得られた上記の連続時系列データと地球物理学的データとの相関解析に向けて，近年得られたデータの整理を行った．②－２：マグマ供給系や火道周辺環境を考慮した火道モデルの構築については，今後，より定量的な検証を行うべき初期モデルとして，石基ガラス組成の時間推移に基づく物質科学的モデルの提案を行った．

  • 課題Ｃ：火山噴火の予測技術の開発

    2016 - 2025

    文部科学省  次世代火山研究・人材育成総合プロジェクト 

    安田 敦

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    Grant type：Competitive

    分担者

 

Social Activities

  • 火山としての富士山 など

    Role(s)： Lecturer

    静岡県内および山梨県内中学校・高等学校  2006.9