Presentations

international conferences only

2023

M. Kohma, Estimate of Turbulent Energy Dissipation Rate from the VHF Radar And Radiosonde Observations in the Antarctic.
FISAPS Workshop on Research Using High Vertical-Resolution Radiosonde Data, UCAR Foothills Campus, US, Aug 30, 2023 — Sep 1, 2023 [Aug 30], Oral (INVITED)
Kohma, M., Sato, K., Fritts, D. C., and Lund, T. S., Numerical simulation of orographic gravity waves observed over Syowa Station.
Japan Geoscience Union Meeting 2023, Chiba, May 21, 2023 — May 26, 2023 [May 21], Oral (INVITED)

2022

Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi, Estimation of turbulent energy dissipation rates by a VHF radar in the Antarctic.
SPARC 2022 General Assembly, in three locations and online, Oct 24, 2022 — Oct 28, 2022 [Oct 24], Poster
Kohma, M., and K. Sato, Turbulent Kinetic Energy Dissipation Rates Around the Polar Vortex in the UTLS Region in the Antarctic.
AOGS 19th Annual Meeting, Virtual, Aug 1, 2022 — Aug 6, 2022 [Aug 03], Poster
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.
SPARC Gravity Wave Symposium 2022, Hybrid format, Conference Center of the Evangelische Akademie, Frankfurt, Germany, Mar 28, 2022 — Apr 1, 2022 [Mar 30], Oral (INVITED)

2020

Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi, Time variations of PMWE and turbulent energy dissipation rate after SSW in the Southern Hemisphere in 2019.
AGU Fall Meeting 2020, Dec 1, 2020 — Dec 17, 2020 [Dec 09], Poster
Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi, A statistical analysis of the turbulent parameters of the PMWE observed by the PANSY radar at Syowa Station (69S, 40E) in the Antarctic.
JpGU-AGU Joint Meeting 2020: Virtual, Online, Jul 12, 2020 — Jul 16, 2020 [Jul 14], Poster
Kohma, M., and K. Sato, A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and its Application.
WCRP/SPARC SATIO-TCS joint workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics, Kyoto, Feb 21, 2020 — Feb 25, 2020 [Feb 24], Poster
Kohma, M., and K. Sato, A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and its Application.
100th AMS Annual Meeting, Boston Convention and Exhibition Center, Boston, USA, Jan 12, 2020 — Jan 16, 2020 [Jan 14], Poster

2019

Kohma, M., K. Sato, K. Nishimura, M. Tsutsumi, T. Sato, A statistical analysis of the spectral width of the PMWE observed by the PANSY radar at Syowa Station (69°S, 40°E) in the Antarctic.
The 10th Symposium on Polar Science, National Institute of Polar Research, Tokyo, Dec 3, 2019 — Dec 5, 2019 [Dec 04], Oral
Kohma, M., K. Sato, K. Nishimura, M. Tsutsumi, and T. Sato, A statistical analysis of the spectral width of the PMWE observed by the PANSY radar at Syowa Station (69°S, 40°E) in the Antarctic.
Layered Phenomena in the Mesopause Region, Virginia, USA, Sep 30, 2019 — Oct 4, 2019 [Oct 03], Poster
Kohma, M., and K. Sato, Tendency equation for lapse-rate-tropopause heights.
AOGS 16th Annual Meeting, SUNTEC Singapore Convention & Exhibition Centre, Singapore, Jul 29, 2019 — Aug 2, 2019 [Jul 31], Poster

2018

Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi, Turbulent Kinetic Energy Dissipation Rates Depending on the Polar Vortex and on Synoptic-scale Disturbances in the UTLS Region in the Antarctic.
AGU Fall meeting 2018, Walter E. Washington Convention Center, Washington DC, USA, Dec 10, 2018 — Dec 14, 2018 [Dec 14], Poster
Kohma, M., and K. Sato, Tendency equation for lapse-rate-tropopause heights.
AGU Fall meeting 2018, Walter E. Washington Convention Center, Washington DC, USA, Dec 10, 2018 — Dec 14, 2018 [Dec 14], Poster
Kohma, M., K. Sato, K. Nishimura, Y. Tomikawa, and T. Sato, Turbulent kinetic energy dissipation rate derived from multi-year observations by radar and radiosonde in the Antarctic.
SPARC FISPAS Workshop, Leibniz-Institut für Atmosphärenphysik, Kuehlungsborn, Germany, Nov 6, 2018 — Nov 8, 2018 [Nov 06], Oral (INVITED)
Kohma, M., K. Sato, K. Nishimura, Y. Tomikawa, and T. Sato, Seasonal variation of energy dissipation rate derived from radar and radiosonde observations at Syowa Station in the Antarctic.
SPARC General Assembly 2018, Miyako Messe, Kyoto, Oct 1, 2018 — Oct 5, 2018 [Oct 03], Poster

2017

Kohma, M., K. Sato, and Y. Tomikawa, Seasonal variation of Thorpe scale and energy dissipation rate derived from radiosonde observations at Syowa Station in the Antarctic.
AGU Fall meeting 2017, New Orleans Ernest N. Morial Convention Center, New Orleans, USA, Dec 11, 2017 — Dec 15, 2017 [Dec 13], Poster
Kohma, M., K. Sato, K. Nishimura, Y. Tomikawa, and T. Sato, Energy dissipation rate estimation based on observations by the PANSY radar in the Antarctic.
The Eighth Symposium on Polar Science, National Institute of Polar Research, Tokyo, Dec 4, 2017 — Dec 8, 2017 [Dec 06], Oral