Masaaki Morita

Update: 28 August 2019


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Researcher
I am a researcher of volcanology at the Geological Survey of Japan, AIST. My research interests mainly lie on processes of volcanic eruptions and dynamics of volcanic gas emissions based on measurements of compotisions and flux of volcanic gases. I use a variety of techniques ranging from in-situ sensing of volcanic gas composotions to satellite and ground-based remote sensing of volcanic plumes.
Masaaki Morita
Central 7, Higashi 1-1-1
Tsukuba, Ibaraki 305-8567, JAPAN
Phone: +81 29 861 3845
E-mail: aki.morita_at_aist.go.jp

Research Topics


Processes of volcanic eruptions

  • Processes of explosive eruptions based on volcanic gas measurements
  • Temporal variations in compositions and flux of volcanic gases
  • Constraints on volatile sources and magma and hydrothermal conditions

Development of volcanic gas sensing techniques

  • Accurate sensing of volcanic gas compositions using Multi-GAS
  • Remote sensing of volcanic plumes in UV region
  • UAV-based system of volcanic gas measurements

Diffuse degassing from volcano flanks

  • Temporal variations in flux of diffuse CO2 at Asama, Aso, and Izu-Oshima volcanoes

Education


The University of Toyko

Apr 2014 - Mar 2017
Ph.D in Sciences

Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan
Thesis: Controlling factors on hydrothermal fluid ascent in a volcanic edifice revealed by diffuse CO2 flux measurements: A case study of Asama volcano, Japan
Supervisor: Dr. Toshiya Mori (Geochemical Research Center)

The University of Tokyo

Apr 2012 - Mar 2014
MSc

Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan
Thesis: Development of automated sulphur dioxide flux measurement system at Suwanosejima volcano, Japan: To understand a linkage between volcanic gas emission and seismic signals
Supervisor: Dr. Toshiya Mori (Geochemical Research Center)

The University of Toyko

Apr 2008 - Mar 2012
BSc

Department of Earth and Planetary Physics, Faculty of Science, The University of Tokyo, Tokyo, Japan


Professional Experience


National Institute of Advanced Industrial Science and Technology

Apr 2017 - present
Researcher

Magmatic Activity Research Group, Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan

The University of Tokyo

Apr 2016 - Mar 2017
JSPS Research Fellow (DC2)

Theme: Development of a new device for measuring volcanic gas flux using photodiodes and its application to active volcanoes for studying volcanic degassing processes


Publications


Peer-reviewed manuscripts

  1. Morita, M. (2019) Temporal variations of plume activities before the 8 October 2016 eruption of Aso volcano, Japan, detected by ground-based and satellite measurements. Earth, Planets and Space, 71, 7. https://doi.org/10.1186/s40623-019-0986-x
  2. Morita, M., Mori, T., Yokoo, A., Ohkura, T. and Morita, Y. (2019) Continuous monitoring of soil CO2 flux at Aso volcano, Japan: the influence of environmental parameters on diffuse degassing. Earth, Planets and Space, 71, 1. https://doi.org/10.1186/s40623-018-0980-8
  3. Mori., T., Morita, M., Iguchi, M. and Fukuoka Regional Headquarters (2017) Sulfur dioxide flux monitoring using a regular service ferry after the 2014 eruption of Kuchinoerabujima Volcano, Japan. Journal of Natural Disaster Science, 38, 105-118. https://www.jsnds.org/jnds/38_1_7.pdf
  4. Morita, M., Mori, T., Kazahaya, R. and Tsuji, H. (2016) Diffuse carbon dioxide emissions from hidden subsurface structures at Asama volcano, Japan. Bulletin of Volcanology, 78, 17. https://doi.org/10.1007/s00445-016-1008-5
  5. Morita, M., Tsunomori, F., Matsuyama, R. and Mori, T. (2013) Survey of radon-222 concentration in groundwater in Miura Peninsula. Radioisotopes, 62, 91–95. https://doi.org/10.3769/radioisotopes.62.91 (in Japanese with English abstract)

Transactions and reports (reviewed inside or non-reviewed)

  1. Nakano, S., Oikawa, T., Ishizuka, Y., Shinohara, H. and Morita, M. (2017) The October 2017 eruption of Kirishima-Shinmoedake volcano. GSJ Chishitsu News, 6, 351-354. https://www.gsj.jp/data/gcn/gsj_cn_vol6.no11_p351-354.pdf (in Japanese)
  2. Shimizu, H., Kanno, Y., Matsuo, N. and Morita, M. (2016) Report of the Study Meeting for Young Volcanologist 2015 in Izu-Oshima, Japan. Bulletin of the Volcanological Society of Japan, 61, 559-562. https://doi.org/10.18940/kazan.61.3_559 (in Japanese)

Grants and Projects


Japan Society for the Promotion of Science

Apr 2019 - Mar 2022
PI, Grant-in-Aid for Early-Career Scientists

Development of a measurement system for volcanic gas compositions using an unmanned aerial vehicle (No. 19K14806)

Japan Society for the Promotion of Science

Apr 2017 - Mar 2020
non-PI, Grant-in-Aid for Scientific Research (B)

Elucidation to process of volcanic activity changes based on analysis of pressure changes for magmatic degassing (No. 17H02955)

Japan Science and Technology Agency

Apr 2017 - Mar 2019
non-PI, SIP (Cross-ministerial Strategie Innovation Promotion Program)

Enhancement of societal resiliency against natural disasters

Japan Society for the Promotion of Science

Apr 2016 - Mar 2019
non-PI, Grant-in-Aid for Scientific Research (C)

Predictions on changes of volcanic activities related to phreatic explosions based on volcanc gas observations (No. 16K01320)

Japan Society for the Promotion of Science

Apr 2016 - Mar 2017
PI, Grant-in-Aid for JSPS Fellows (DC2)

Development of a new device for measuring volcanic gas flux using photodiodes and its application to active volcanoes for studying volcanic degassing processes (No. 16J06827)

The Japan Science Society

Apr 2013 - Feb 2014
PI, Sasakawa Scientific Research Grant

Development of automated continuous measurement device to detect volcanic sulfur dioxide and observation at a remote volcanic island (No. 25-217)


Awards and Honors


  • Student Outstanding Presentation Award, Japan Geoscience Union Meeting, Solid Earth Section, 2012.

Teaching


Next Generation Volcano Researcher Development Program

Mar 2018 - present
Lecture and field study

Volcanology field study on volcanic gas measurements at Sakurajima and Unzen volcanoes (see website).


Contact