Rchr
J-GLOBAL ID：202101011252653860   Update date: Aug. 05, 2024

Nagai Masashi

ナガイ マサシ | Nagai Masashi
Affiliation and department：
National Research Institute for Earth Science and Disaster Resilience Volcano Disaster Resilience Research Division

About National Research Institute for Earth Science and Disaster Resilience Volcano Disaster Resilience Research Division


Job title： Research Fellow
Other affiliations (1)：
  • Nihon University  Department of Earth & Environmental Sciences, College of Humanities and Sciences   Part-time Lecturer
Research field  (1)： Solid earth science
Research theme for competitive and other funds  (2)：
  • 2015 - 2016 Integrated study on the 2015 eruption at the Kuchinoerabujima volcano
  • 2004 - 2009 Reconstruction of the burial process of the archaeological site buried by volcanic eruptions and the analysis of the eruption sequence
Papers (39)：
  • Miyabuchi, Y, Nagai, M, Nakada, S, Ozawa, T, Furukawa, R, Ishizuka, O, Minami, Y, Conway, C, Itoh, J. Post-eruption field survey of ash-fall deposits using the JVDN system: Case study of the October 20, 2021 eruption of Nakadake first crater, Aso Volcano, Japan. Bulletin of the Volcanological Society of Japan. 2024. 69. 2. 61-70
  • Takahiro MIWA, Masashi NAGAI, Hideki UEDA, Akihiko YOKOO. Classification of Volcanic Ash Particles with a Convolutional Neural Network on RGB Microphotographs: Towards Real-Time Monitoring of an Ongoing Eruption. Report of the National Research Institute for Earth Science and Disaster Resilience. 2023. 88. 1-7
  • Masashi NAGAI, Fukashi MAENO, Takayuki KANEKO. Geological findings in the 2021 Nishinoshima comprehensive scientific research project. OGASAWARA RESEARCH. 2023. 49. 45-69
  • Masashi Nagai, Setsuya Nakada. Impact on the Electric Infrastructure Due to Volcanic Ash from a Hydrovolcanic Eruption of Aso Volcano in 2016. Journal of Disaster Research. 2022. 17. 5. 829-838
  • Nobuko Kametani, Yasuo Ishizaki, Mitsuhiro Yoshimoto, Fukashi Maeno, Akihiko Terada, Ryuta Furukawa, Ryo Honda, Yoshihiro Ishizuka, Jiro Komori, Masashi Nagai, et al. Total mass estimate of the January 23, 2018, phreatic eruption of Kusatsu-Shirane Volcano, central Japan. Earth, Planets and Space. 2021. 73. 1
ｍore...
MISC (22)：
  • 長井雅史, 中田節也, 上田英樹, 小園誠史, 三輪学央, 安田敦, 前野深, 外西奈津美, 佐野貴司, 谷健一郎, et al. The eruption sequence and products of the 2022 eruption off the Okinahama beach, Ioto (Iwojima), Japan. 日本火山学会講演予稿集. 2022. 2022
  • 中田節也, 長井雅史, 藤田英輔. Assessment of volcanic hazards following the July 2022 magma eruption at Ioto volcano, Ogasawara. 日本火山学会講演予稿集. 2022. 2022
  • 田島靖久, 中田節也, 長井雅史, 前野深, 松島健. Geothermal activities around Ioyama since 2014 and the associated disaster incident for the Kirishima volcano in Kyushu, Japan. 日本地球惑星科学連合大会予稿集(Web). 2022. 2022
  • 田島靖久, 中田節也, 長井雅史, 前野深, 渡邉篤志. Small Eruption at the Ebinokogen Ioyama Volcano of the Kirishima Volcano Group in April 2018. 火山. 2019. 64. 2. 147-151(J-STAGE)
  • Oikawa T., Kawanabe Y., Ito J., Maeno F., Hasenaka T., Kawaguchi M., Nagai M., Nakada S., Tajima Y., Miyabuchi Y., et al. Amounts of tephra fall deposit from Shinmoedake (Kirishima volcanoes) 2018 eruption (Report 1). PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN. 2018. 2018. 0. 231-231
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Books (1)：
  • 箱根ジオミュージアム 展示解説書
    箱根町企画観光部観光課 箱根ジオミュージアム 2024
Lectures and oral presentations  (31)：
  • Data integration, forecasting and resilience by a way to view changes in volcanic activity as state transitions
    (The Volcanologicai Society of Japan 2023 Fall Meeting 2023)
  • Characteristics of the seafloor deposits of the Fukutoku-Oka-no-Ba 2021 eruption revealed from rapid response research cruises
    (The Volcanologicai Society of Japan 2023 Fall Meeting 2023)
  • Ash fall survey after the October 20, 2021 eruption of Nakadake first crater, Aso Volcano using the JVDN system
    (The Volcanologicai Society of Japan 2023 Fall Meeting 2023)
  • Shape parameter measurements of standard tephra samples via DIA in each particle
    (The Volcanologicai Society of Japan 2023 Fall Meeting 2023)
  • Changes of the amounts and sulfur isotope compositions of sulfur minerals in volcanic ash
    (The Volcanologicai Society of Japan 2023 Fall Meeting 2023)
ｍore...
Professional career (1)：
  • Ph.D. (Kagoshima University)
Work history (1)：
  • National Research Institute for Earth Science and Disaster Resilience Volcano Disaster Resilience Research Division Research Fellow
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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