Nagai Masashi

ナガイマサシ | Nagai Masashi

Affiliation and department：
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 (38)：

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
Maya YASUI, Masaki TAKAHASHI, Tatsuo KANAMARU, Masashi NAGAI. High-resolution Reconstruction of the History of Large-scale Eruptions of Asama-Maekake Volcano based on the Stratigraphy of Pyroclastic Fall Deposits. BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN. 2021. 66. 4. 293-325

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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)：

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)

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Professional career (1)：

Work history (1)：

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

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