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)

(2020), A statistical analysis of the energy dissipation rate estimated from the PMWE spectral width in the Antarctic, J. Geophys. Res. Atmos., 125, e2020JD032745. doi:10.1029/2020JD032745

PDF DOI

(2020), Spectral Observation Theory and Beam Debroadening Algorithm for Atmospheric Radar, IEEE Trans. Geosci. Remote Sens., doi:10.1109/TGRS.2020.2970200

PDF DOI

(2020), Relation between the interannual variability in the stratospheric Rossby wave forcing and zonal mean fields suggesting an interhemispheric link in the stratosphere, Ann. Geophys., 38, 319-329. doi:10.5194/angeo-38-319-2020

PDF DOI

(2019), A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and Its Application, J. Atmos. Sci., 76(11), 3337-3350. doi:10.1175/JAS-D-19-0054.1

PDF DOI

(2019), Estimate of Turbulent Energy Dissipation Rate From the VHF Radar and Radiosonde Observations in the Antarctic, J. Geophys. Res. Atmos., 124(6), 2976-2993. doi:10.1029/2018JD029521

PDF DOI

Presentations

(International conferences only)

Kohma, M., and K. Sato, A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and its Application.
Kohma, M., and K. Sato, A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and its Application.
Kohma, M., and K. Sato, Tendency equation for lapse-rate-tropopause heights.

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-
 
 
 
 
 

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