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Masakazu Watanabe Last modified date：2023.06.15

Associate Professor / Earth Planetary Fluid and Space Sciences
Department of Earth and Planetary Sciences
Faculty of Sciences


Graduate School
Department of Earth and Planetary Sciences
Graduate School of Sciences
Undergraduate School
Department of Earth and Planetary Sciences
School of Sciences
Other Organization
International Center for Space and Planetary Environmental Science


Homepage
https://kyushu-u.pure.elsevier.com/en/persons/masakazu-watanabe
　Reseacher Profiling Tool　Kyushu University Pure
Fax
092-802-4208
Academic Degree
PhD
Country of degree conferring institution (Overseas)
No
Field of Specialization
Magnetospheric Physics
ORCID(Open Researcher and Contributor ID)
0000-0001-8345-8508
Total Priod of education and research career in the foreign country
07years07months
Outline Activities
Dr. Watanabe is involved in studies of the solar wind-magnetosphere-ionosphere coupling system using numerical simulations and integrated data analysis. He is also engaged in graduate and undergraduate education at the Department of Earth and Planetary Sciences.
Research
Research Interests
  • Development of an analysis method for identifying higher-order magnetic nulls
    keyword : Higher-order magnetic null, magnetohydrodynamic simulation, magnetic field topology
    2024.04～2026.03.
  • Magnetic field topology of the magnetosphere producing the polar cap bifurcation in the ionosphere
    keyword : Polar cap bifurcation, magnetic field topology, magnetic null
    2022.04～2024.03.
  • Magnetic field topology of interchange reconnection
    keyword : interchange reconnection, magnetic null, magnetic field topology
    2020.04～2024.03.
  • magnetotail crossover reconnection producing the plasma sheet isolation in the ionosphere
    keyword : magnetic reconnection, field-aligned electric field, magnetohydrodynamics
    2019.11～2022.03.
  • Magnetospheric dynamo
    keyword : field-aligned currents, magnetospheric dynamo, magnetohydrodynamics
    2015.04～2020.03.
  • Plasma convection and field-aligned currents associated with theta auroras
    keyword : theta aurora, plasma convection, field-aligned currents
    2012.04～2017.03.
  • Magnetic flux circulation in the magnetosphere-ionosphere coupling system
    keyword : magnetic flux circulation, magnetic field topology
    2010.04～2017.03.
  • Magnetic field topology bifurcation associated with substorms
    keyword : magnetospheric substorm, magnetic field topology
    2010.04～2012.03.
Academic Activities
Papers
 Show All Papers >>
1. Watanabe, M., T. Tanaka, S. Fujita, Magnetospheric Dynamo Driving Large-scale Birkeland Currents, Journal of Geophysical Research Space Physics, 10.1029/2018JA026025, 124, 4249-4265, 124, 4249–4265, 2019.06.
2. Watanabe, M., S. Fujita, T. Tanaka, Y. Kubota, H. Shinagawa, and K. T. Murata., A magnetohydrodynamic modeling of the interchange cycle for oblique northward interplanetary magnetic field, Journal of Geophysical Research Space Physics, 10.1002/2017JA024468, 123, 1, 272-286, 123(1), 272–286, 2018.01.
3. Masakazu Watanabe, Marc R. Hairston, Observation of a unipolar field-aligned current system associated with IMF By-triggered theta auroras, Journal of Geophysical Research Space Physics, 10.1002/2015JA022016, 121, 5, 4483-4497, 2016.05.
4. Masakazu Watanabe, Shintaro Sakito, Takashi Tanaka, Hiroyuki Shinagawa, Ken T. Murata, Global MHD modeling of ionospheric convection and field-aligned currents associated with IMF By triggered theta auroras, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 10.1002/2013JA019480, 119, 8, 2014.08.
5. Watanabe, M., G. J. Sofko, X. Yan, K. A. McWilliams, J.‐P. St.‐Maurice, A. V. Koustov, G. C. Hussey, and M. R. Hairston, Ionospheric convection signatures of the interchange cycle at small interplanetary magnetic field clock angles, J. Geophys. Res., 10.1029/2009JA015041, 115, A12, A12230, 2010.12.
6. Watanabe, M., K. Kabin, G. J. Sofko, R. Rankin, T. I. Gombosi, and A. J. Ridley, Dipole tilt effects on the magnetosphere‐ionosphere convection system during interplanetary magnetic field BY‐dominated periods: MHD modeling, J. Geophys. Res., 10.1029/2009JA014910, 115, A07, A07218, 2010.07.
7. Watanabe, M., and G. Sofko, Role of interchange reconnection in convection at small interplanetary magnetic field clock angles and in transpolar arc motion, J. Geophys. Res., 10.1029/2008JA013426, 114, A01, A01209, 2009.01.
8. Watanabe, M., and G. J. Sofko, The interchange cycle: A fundamental mode of magnetic flux circulation for northward interplanetary magnetic field, Geophys. Res. Lett., 10.1029/2008GL036682, 36, L03107, 2009.02.
9. Watanabe, M., and G. J. Sofko, Dayside four-sheet field-aligned current system during IMF BY-dominated periods, J. Geophys. Res., 10.1029/2008JA013815, 114, A03, A03208, 2009.03.
Presentations
 Show All Presentations >>
1. Masakazu Watanabe, Shintaro Sakito, Takashi Tanaka, Hiroyuki Shinagawa, Ken T. Murata, Global MHD modeling of ionospheric convection and field-aligned currents associated with IMF BY triggered theta auroras, AOGS (Asia Oceania Geoscience Society) Annual Meeting 2014, 2014.07.
2. Masakazu Watanabe, S. Sakito, Takashi Tanaka, H. Shinagawa, K. T. Murata, Convection and Birkeland currents associated with IMF BY triggered theta auroras: An MHD modeling, International CAWSES-II Symposium, 2013.11.
Membership in Academic Society
  • Japan Geoscience Union
  • Society of Geomagnetism and Earth, Planetary, and Space Sciences
  • American Geophysical Union
Educational
Educational Activities
Dr. Watanabe supervises undergraduate and graduate students of the Solar-Terrestrial Physics Group at the Department of Earth and Planetary Sciences. He also teaches classes both at graduate and undergraduate levels, which include "Space Electromagnetic Dynamics," "Magnetohydrodynamics," and "Information Handling for Earth and Planetary Sciences."


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