NAKAMURA Satoko［Affiliation　April 2022-July 2023］

Starting year 2022

Nagoya University
Office for the Development of Interdisciplinary Research Strategy
Institute for Space-Earth Environmental Research
Designated Associate Professor

Research Areas：Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention)
Natural Science
Others

Research fields

Space & Planetary Science
Plasma Physics
Space Weather

Research Interests

Geomagnetically Induced Current
Space Weather
Magnetosphere

Professional Memberships

Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS)
American Geophysical Union (AGU)
Asia Oceania Geosciences Society (AOGS)

Main research topics

The Earth’s magnetosphere represents our nearest space environment and a natural plasma laboratory. They are highly dynamic and variable in space, through the impact of changing the solar wind or the atmosphere. The magnetosphere is our nearest space environment. We have been engaged in understanding elementary processes relating to various electromagnetic disturbances.

In addition to the scientific interest, recent researches have shown a possibility of a strong impact on our modern society by the severe space weather. Now I focus on “Geomagnetic Induced Current; GIC”, which is one of the important subjects of space weather because it can give rise to an irreversible damage on power grids. During space weather events, electric currents in the magnetosphere and ionosphere experience large variations and induce anomalous current in power lines. I aim to establish a system to estimate a vulnerability of Japanese power grid to severe space weather.

Representative papers

Nakamura, S., Ebihara, Y., Fujita, S., Goto, T., Yamada, N., Watari, S., & Omura, Y. “Time domain simulation of geomagnetically induced current (GIC) flowing in 500-kV power grid in Japan including a three-dimensional ground inhomogeneity”, Space Weather, (2018), 16, 1946– 1959. https://doi.org/10.1029/2018SW002004

Research URL

researchmap　https://researchmap.jp/satoko_nakamura

Global issues to be solved through this project

A Preliminary Risk Assessment of Geomagnetically Induced Currents on Japanese Power Grids.

The modern society, which is supported by advanced information systems and space technology, is at an increasing risk from severe space weather disasters. This research develops the model for the risk assessment associated Geomagnetically Induced Currents on Japanese Power Grid. We refine our previous physics-based model under this wide range of domestic and international cooperation, including researchers on the space physics, the engineering, and power companies.

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