Biography

Masashi Kohma is a research associate at Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo. His research interests include middle atmosphere dynamics, turbulence in the atmosphere, clouds observed in the middle atmosphere, and tropopause.

Interests

  • Middle atmosphere dynamics
  • Turbulence in the atmosphere
  • Polar stratopheric clouds (PSCs)
  • Polar mesospheric clouds (PMCs)
  • Tropopause

Education

  • PhD in Earth and Planetary Science,
    The University of Tokyo
    March, 2014

  • MS in Earth and Planetary Science,
    The University of Tokyo
    March, 2011

  • BS in Geophysics,
    Kyoto University
    March, 2009

Publications

(peer-reviewed)

(2023), Interhemispheric Coupling Study by Observations and Modelling (ICSOM): Concept, Campaigns, and Initial Results, J. Geophys. Res.-Atmos., 128, e2022JD038249. doi:10.1029/2022JD038249

DOI

(2022), Dynamical analysis of tropopause folding events in the coastal region of Antarctica, J. Clim., 35(14), 4687–4700. doi:10.1175/JCLI-D-21-0858.1

PDF DOI

(2022), An update on the 4D-LETKF data assimilation system for the whole neutral atmosphere, Geosci. Model Dev., 15, 2293-2307. doi:10.5194/gmd-15-2293-2022

PDF DOI

(2022), A New Three-Dimensional Residual Flow Theory and Its Application to Brewer–Dobson Circulation in the Middle and Upper Stratosphere, J. Atmos. Sci., 79(2), 429-448. doi:10.1175/JAS-D-21-0094.1

PDF DOI

Presentations

(International conferences only)

Kohma, M., Sato, K., Fritts, D. C., and Lund, T. S., Numerical simulation of orographic gravity waves observed over Syowa Station.
Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi, Estimation of turbulent energy dissipation rates by a VHF radar in the Antarctic.
Kohma, M., Sato, K., Tsutsumi, M., and Nishimura, K., Estimation of turbulent energy dissipation rates in the mesosphere by a VHF radar in the Antarctic.

Experience

 
 
 
 
 

Department of Earth and Planetary Science, The University of Tokyo

Research Associate

Apr 2014 – Present Tokyo, Japan

Teaching:

  • Undergraduate, Exercises in Earth and Planetary Physics (Matrix calculation using Fortran), FY2014-2015
  • Undergraduate, Field Observation for Earth and Planetary Physics, FY2014-2015, FY2017-
  • Undergraduate, Exercises in Basic Earth and Planetary Physics III (Fluid dynamics), FY2017-
  • Undergraduate, Exercises in Basic Earth and Planetary Physics II (Complex function), FY2020
 
 
 
 
 

The 57th Japanese Antarctic Research Expedition (JARE57)

Wintering Member

Nov 2015 – Mar 2017 Syowa Station, Antarctic
 
 
 
 
 

Japan Society for the Promotion of Science (JSPS)

Research Fellowship (DC1)

Apr 2011 – Mar 2014

Awards and Honors

Yamamoto Prize 2016

Best Poster Prize in SPARC General Assembly 2014

Projects

Program of the Antarctic Syowa MST/IS Radar (PANSY radar)

The PANSY radar is the first Mesosphere-Stratosphere-Troposphere/Incoherent Scatter (MST/IS) radar in the Antarctic region

Contact