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J-GLOBAL ID：200901010218210477   Update date: Jan. 30, 2024

Ohba Takeshi

オオバ タケシ | Ohba Takeshi
Affiliation and department：
東海大学 理学部化学科

About 東海大学 理学部化学科


Job title： 教授
Homepage URL  (1)： http://www.sc.u-tokai.ac.jp/
Research field  (1)： Space and planetary science
Research theme for competitive and other funds  (26)：
  • 2020 - 2023 Development of a flash-type volcanic gas composition automatic observation device and prediction of phreatic eruption
  • 2019 - 2023 Understanding the magma system at Taal volcano, Philippines, based on in-situ geophysical observations
  • 2018 - 2022 Monitoring of temperature in hydrothermal reservoir using gaseous elemental mercury
  • 2016 - 2019 Elucidation of magmatic and hydrothermal systems of the highly eruptive Taal and Mayon volcanoes
  • 2015 - 2018 Volcanic eruption potential diagnosis by volcanic gas observation
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Papers (127)：
  • Tomoya Obase, Hirochika Sumino, Kotaro Toyama, Kaori Kawana, Kohei Yamane, Muga Yaguchi, Akihiko Terada, Takeshi Ohba. Monitoring of magmatic-hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases. Scientific Reports. 2022. 12. 1. 17967-17967
  • Brice Tchakam Kamtchueng, Aicha Foupouagnigni, Mero Yannah, Josephine Ndjama, Mumbfu Ernestine Mimba, Mengnjo Jude Wirmvem, Muga Yaguchi, Gloria Eneke Takem, Andrew Ako Ako, Wilson Yetoh Fantong, et al. Major ions, trace elements and stable isotope characteristics of shallow groundwater in the Bonaberi district, Douala, Cameroon. Sustainable Water Resources Management. 2022. 8. 5
  • Takeshi Ohba, Yu Oginuma, Kazuto Saiki, Minoru Kusakabe, Issa, Takounjou A. Fouepe, Romaric Ntchantcho, Gregory Tanyileke, Joseph V. Hell. A Depression Containing CO2-Enriched Water at the Bottom of Lake Monoun, Cameroon, and Implications for the 1984 Limnic Eruption. Frontiers in Earth Science. 2022. 10
  • Muga Yaguchi, Takeshi Ohba, Yasuo Hirayama, Nozomi Numanami. Volcanic Ash from the June 17, 1962 Eruption of Yakedake Volcano: Stereomicroscopic, XRD, and Water-Soluble Components Analyses. Journal of Disaster Research. 2022. 17. 2. 257-262
  • Akihiko Terada, Muga Yaguchi, Takeshi Ohba. Quantitative Assessment of Temporal Changes in Subaqueous Hydrothermal Activity in Active Crater Lakes During Unrest Based on a Time-Series of Lake Water Chemistry. Frontiers in Earth Science. 2022. 9. :740671
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MISC (130)：
  • Ohba Takeshi. Volcanic fluid. Chikyukagaku. 2022. 56. 4. 64-75
  • 大場 武. 火山性流体-Volcanic fluid-特集 深部流体 地球内部と表層部をつなぐ大規模水循環. 地球化学 = Geochemistry. 2022. 56. 4. 64-75
  • 若松海, 寺田暁彦, 角野浩史, 小長谷智哉, 谷口無我, 大場武. Spatial distribution of Helium isotope ratios in soil gas outside the Yugama crater at Kusatsu-Shirane volcano: An attempt to detect potential fracture zones. 日本火山学会講演予稿集. 2021. 2021
  • 小長谷智哉, 角野浩史, 外山浩太郎, 大場武, 谷口無我. Temporal variations of helium and carbon isotopic compositions of fumarolic gases at Hakone volcano. 日本火山学会講演予稿集. 2021. 2021
  • 小長谷智哉, 角野浩史, 外山浩太郎, 外山浩太郎, 大場武, 谷口無我, 寺田暁彦. Temporal variation in the ratio of magmatic helium and argon in fumarolic gases at Kusatsu-Shirane volcano. 日本地球化学会年会要旨集(Web). 2021. 68th
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Books (15)：
  • Geochemical survey at Rabaul caldera, Papua New Guinea
    IUGG 2003 general assembly Abstract 2003
  • Chemical composition of volcanic gases from Mt.Unzen, Japan: Implication to the magma degassing process
    IUGG 2003 general assembly Abstract 2003
  • Interaction between magmatic fluid and meteoric water in hydrothermal system inferred from noble gas isotopic compositions of fumarolic gases at Kusatsu-Shirane volcano, Japan
    IUGG 2003 general assembly Abstract 2003
  • Interaction of volcanic gases with ground water at the Use 2000 eruption
    IUGG 2003 general assembly Abstract 2003
  • Geochemical survey at Rabaul caldera, Papua New Guinea
    Eighth field workshop on volcanic gases, Abstract 2003
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Lectures and oral presentations  (23)：
  • Volcanic hydrothermal system of Mt. Kusatsu-Shirane, Japan hosting the active crater lake Yugama
    (Magmatic gases, their trip from the mantle to the surface of the Earth, JSPS Asia-Afirica Scinece Platform Program International Seminar AASPP-Misasa 2006)
  • 高出力レーザーラマン分光法による火山ガス遠隔観測実験
    (特定領域「火山爆発のダイナミックス」シンポジウム 2006)
  • 伊豆大島三原山山頂の火山ガスは噴火予知に利用できるか?
    (日本地球惑星科学連合2006年大会 2006)
  • 36Ar/H2O 比と18O/16O 比の相関に基づく火山噴気の形成モデル:箱根山と草津白根山への応用
    (日本地球惑星科学連合2006年大会 2006)
  • 草津白根山火口湖湯釜の化学組成経年変化から推定するマグマ脱ガスモデル
    (日本地球化学会第53回年会 2006)
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Works (9)：
  • コスタリカ国における活火山活動観測体制の強化のための専門家派遣(国際協力機構,JICAによる派遣)2004年6月~8月
    2004 - 2004
  • カメルーン国,ニオス湖とマヌーン湖の調査
    1999 - 1999
  • Field study on the Nyos lake and Monoun lake, Cameroon
    1999 - 1999
  • 開発途上国の技術者に対する火山学の教育訓練
    1998 - 1998
  • ニュージーランド,ルアペル火山火口湖の調査
    1998 - 1998
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Education (3)：
  • - 1988 東京工業大学大学院 理工学研究科 化学専攻
  • - 1988 Tokyo Institute of Technology Graduate School, Division of Science and Engineering
  • - 1983 Tokyo Institute of Technology School of Science Dept. of Chemistry
Professional career (1)：
  • Doctor of Science (Tokyo Institute of Technology)
Work history (6)：
  • 2010/04 - 現在 Tokai University School of Science Professor
  • 1998 - -:東京工業大学 火山流体研究センター 助教授
  • 1998 - -:
  • 1988 - -:東京工業大学 草津白根火山観測所 助手
  • 1988 - -:
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Committee career (1)：
  • 1999 - 1999 日本火山学会 編集委員
Awards (1)：
  • 2016/03 - Ordre de la Valeur
Association Membership(s) (10)：
日本地球化学会 ,  日本火山学会 ,  日本化学会 ,  地球化学研究協会 ,  International Association of volcanology and chemistry of the earth's interior ,  Geochemical society ,  American Geophysical Union ,  International Association of volcanology and chemistry of the earth's interior ,  Geochemical society ,  American Geophysical Union
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