すぎもと のりひこ

Norihiko SUGIMOTO

Ph.D.
  • Research Field :
    Physics

Research Description

I study spontaneous atmospheric gravity wave radiation from unsteady vortex motions, such as from jet-front systems, cyclones, and hurricanes, using simplified numerical models. I also study “super rotation” in the atmosphere of Venus using the atmospheric general circulation model for the Earth simulator, AFES-Venus.

Material

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Snapshot of spontaneous atmospheric gravity wave radiation (right panel) from an unsteady jet stream (left panel) in a simplified numerical model of the Earth’s atmosphere.

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Our data assimilation system will be the first to produce reanalysis data for the Venusian atmosphere.

Selected Journal Publications

  1. Yamamoto T., Ikari S., Ando H., Imamura T., Hosono A., Abe M., Fujisawa Y., Sugimoto N., Kawabata Y., Funase R., and Nakasuka S. (2021) 惑星大気の衛星間電波掩蔽観測のための最適軌道に関する研究(Orbit Design Optimization for Planetary Crosslink Radio Occultation). 日本航空宇宙学会論文集(Journal of the Japan Society for Aeronautical and Space Sciences)69 (5): p179-186 doi

  2. Sugimoto N., Fujisawa Y., Kashimura H., Noguchi K., Kuroda T., Takagi M., and Hayashi Y.-Y. (2021) Generation of gravity waves from thermal tides in the Venus atmosphere. Featured on Editors’ Highlights webpage in Astronomy and planetary science. プレスリリース. Nature Communications12:3682 doi

  3. Ando H., Takagi M., Sagawa H., Sugimoto N., Sekiguchi M., and Matsuda Y. (2021) Quasi-Periodic Variation of the Lower Equatorial Cloud Induced by Atmospheric Waves on Venus. Journal of Geophysical Research: PlanetsVol.126:e2020JE006781 doi

  4. Sugimoto N., Takagi M., Matsuda Y. (2019) Fully Developed Superrotation Driven by the Mean Meridional Circulation in a Venus GCM. Geophysical Research Letters46:1776–1784 doi

  5. Kashimura H., Sugimoto N., Takagi M. et al. (2019) Planetary-scale streak structure reproduced in high-resolution simulations of the Venus atmosphere with a low-stability layer. Nature Communications10: 23 (11pp) ( プレスリリース ) doi

  6. Sugimoto_N.,Yamazaki A.,Kouyama T., Kashimura H., Enomoto T., and Takagi M. (2017) Development of an ensemble Kalman filter data assimilation system for the Venusian atmosphere. Scientific Reports7:9321, 9pp  ( プレスリリース ) doi

  7. Sugimoto, N., and Plougonven, R. (2016) Generation and backreaction of spontaneously emitted inertia-gravity waves. Geophysical Research Letters43: 1-7 doi

  8. Lebonnois, S., Sugimoto, N., and Gilli, G. (2016) Wave analysis in the atmosphere of Venus below 100-km altitude, simulated by LMD Venus GCM. Icarus278: 38-51 doi

  9. Ando, H., Sugimoto, N., Takagi, M., Kashimura, H., Imamura, T., and Matsuda, Y. (2016) The puzzling Venusian polar atmospheric structure reproduced by a general circulation model. Nature Communications7: 1-8 doi

  10. Sugimoto N., Ishioka K., Kobayashi H., and Shimomura Y.(2015) Cyclone-anticyclone asymmetry in gravity wave radiation from a co-rotating vortex pair in rotating shallow water. Journal of Fluid Mechanics772: 80-106. doi

  11. Sugimoto, N.(2015) Inertia-gravity wave radiation from the merging of two co-rotating vortices in the f-plane shallow water system. Physics of Fluids27: 1-6 doi

  12. Sugimoto, N., Takagi, M., and Matsuda, Y. (2014) Waves in a Venus general circulation model. Geophysical Research Letters41: 7461-7467 doi

  13. Sugimoto N., Ishioka K., and Ishii K. (2008) Parameter Sweep Experiments on Spontaneous Gravity Wave Radiation From Unsteady Rotational Flow in an F-plane Shallow Water System. J Atmospheric Sci 65: 234-249 doi

Collaborative Research Recruitment

All kinds of numerical and theoretical studies related to Geophysical Fluid Dynamics and Planetary Atmospheric Sciences.

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Tennis, Climbing, Snowboarding, Skiing, Wine

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