Kohma, M., K. Sato, D. C. Fritts, and T. S. Lund (2024), Numerical Simulation of Orographic Gravity Waves Observed Over Syowa Station: Wave Propagation and Breaking in the Troposphere and Lower Stratosphere, J. Geophys. Res.-Atmos., doi:10.1029/2023JD039425

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Sato, K., Tomikawa, Y., Kohma, M., Yasui, R., Koshin, D., Okui, H., Watanabe, S., Miyazaki, K., Tsutsumi, M., Murphy, D., Meek, C., Tian, Y., Ern, M., Baumgarten, G., Chau, J. L., Chu, X., Collins, R., Espy, P. J., Hashiguchi, H., Kavanagh, A. J., Latteck, R., Luebken, F.-J., Milla, M., Nozawa, S., Ogawa, Y., Shiokawa, K., Alexander, M. J., and Nakamura, T. (2023), Interhemispheric Coupling Study by Observations and Modelling (ICSOM): Concept, Campaigns, and Initial Results, J. Geophys. Res.-Atmos., 128, e2022JD038249. doi:10.1029/2022JD038249

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Tomikawa, Y., M. Kohma, M. Takeda, and K. Sato (2023), Water Vapor in the Upper Troposphere above Syowa Station in the Antarctic: Its Variations and Causes, SOLA, 19, 86-93. doi:10.2151/sola.2023-012

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Koshin, D., M. Kohma, and K. Sato (2022), Characteristics of the Intraseasonal Oscillation in the Equatorial Mesosphere and Lower Thermosphere Region Revealed by Satellite Observation and Global Analysis by the JAGUAR Data Assimilation System, J. Geophys. Res.-Atmos., 127(16), e2022JD036816. doi:10.1029/2022JD036816

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Kohma, M., M. Mizukoshi, and K. Sato (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

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Koshin, D., K. Sato, M. Kohma, and S. Watanabe (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

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Sato, K., T. Kinoshita, Y. Matsushita, and M. Kohma (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

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Hirano, S., M. Kohma, and K. Sato (2021), Interannual Variability of Stratospheric Final Warming in the Southern Hemisphere and its Tropospheric Origin, J. Clim., doi:10.1175/JCLI-D-20-0945.1

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Kohma, M., K. Sato, K. Nishimura, and M. Tsutsumi (2021), Weakening of PMWE and Turbulent Energy Dissipation Rates after a Stratospheric Sudden Warming in the Southern Hemisphere in 2019, Geophys. Res. Lett., 48, e2021GL092705. doi:10.1029/2021GL092705

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Kohma, M., K. Sato, K. Nishimura, M. Tsutsumi, and T. Sato (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

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

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Matsushita, Y., D. Kado, M. Kohma, and K. Sato (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

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Kohma, M., and K. Sato (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

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Kohma, M., K. Sato, Y. Tomikawa, K. Nishimura, and T. Sato (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

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Nishiyama, T., K. Sato, T. Nakamura, M. Tsutsumi, T. Sato, Y.-M. Tanaka, K. Nishimura, Y. Tomikawa, and M. Kohma (2018), Simultaneous observations of polar mesosphere winter echoes and cosmic noise absorptions in a common volume by the PANSY radar (69.0°S, 39.6°E), J. Geophys. Res. Space Phys., 123(6), 5019-5032. doi:10.1029/2017JA024717

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Thurairajah, B., K. Sato, J. Yue, T. Nakamura, M. Kohma, S. M. Bailey, and J. M. Russell III (2017), Simultaneous observation of gravity waves at PMC altitude from AIM/CIPS experiment and PANSY radar over Syowa (69°S, 39°E), J. Atmos. Sol.-Terr. Phys., 164, 324-331. doi:10.1016/j.jastp.2017.10.006

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Tsutsumi, M., K. Sato, T. Sato, M. Kohma, T. Nakamura, K. Nishimura, and Y. Tomikawa (2017), Characteristics of mesosphere echoes over Antarctica obtained using PANSY and MF radars, SOLA, 13A, 19-23. doi:10.2151/sola.13A-004

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Shibuya, R., K. Sato, M. Tsutsumi, T. Sato, Y. Tomikawa, K. Nishimura, and M. Kohma (2017), Quasi-12h inertia-gravity waves in the lower mesosphere observed by the PANSY radar at Syowa Station (39.6°E, 69.0°S), Atmos. Chem. Phys., 17(10), 6455-6476. doi:10.5194/acp-17-6455-2017

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Sato, K., M. Kohma, M. Tsutsumi, and T. Sato (2017), Frequency spectra and vertical profiles of wind fluctuations in the summer Antarctic mesosphere revealed by MST radar observations, J. Geophys. Res. Atmos., 122, 3-19. doi:10.1002/2016JD025834

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Hirano, S., M. Kohma, and K. Sato (2016), A three-dimensional analysis on the role of atmospheric waves in the climatology and interannual variability of stratospheric final warming in the Southern Hemisphere, J. Geophys. Res. Atmos., 121(14), 8429-8443. doi:10.1002/2015JD024481

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Minamihara, Y., K. Sato, M. Kohma, and M. Tsutsumi (2016), Characteristics of Vertical Wind Fluctuations in the Lower Troposphere at Syowa Station in the Antarctic Revealed by the PANSY Radar, SOLA, 12, 116-120. doi:10.2151/sola.2016-026

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Nishiyama, T., K. Sato, T. Nakamura, M. Tsutsumi, T. Sato, M. Kohma, K. Nishimura, Y. Tomikawa, M. K. Ejiri, and T. T. Tsuda (2015), Height and time characteristics of seasonal and diurnal variations in PMWE based on 1 year observations by the PANSY radar (69.0°S, 39.6°E), Geophys. Res. Lett., 42(7), 2100-2108. doi:10.1002/2015GL063349

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Kohma, M., and K. Sato (2014), Variability of upper tropospheric clouds in the polar region during stratospheric sudden warmings, J. Geophys. Res. Atmos., 119, 10100-10113. doi:10.1002/2014JD021746

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Sato, K., M. Tsutsumi, T. Sato, T. Nakamura, A. Saito, Y. Tomikawa, K. NIshimura, M. Kohma, H. Yamagishi, and T. Yamanouchi (2013), Program of the Antarctic Syowa MST/IS radar (PANSY), J. Atmos. Sol.-Terr. Phys., 118A, 2-15. doi:10.1016/j.jastp.2013.08.022

Project DOI

Kohma, M., and K. Sato (2013), Simultaneous occurrence of polar stratospheric clouds and upper-tropospheric clouds caused by blocking anticyclones in the Southern Hemisphere, Atmos. Chem. Phys., 13, 3849-3864. doi:10.5194/acp-13-3849-2013

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Kohma, M., and K. Sato (2013), Kelvin and Rossby waves trapped at boundaries under the full Coriolis force, SOLA, 9, 9-14. doi:10.2151/sola.2013-003

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Kohma, M., and K. Sato (2011), The effects of atmospheric waves on the amounts of polar stratospheric clouds, Atmos. Chem. Phys., 11(22), 11535-11552. doi:10.5194/acp-11-11535-2011

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Kohma, M., S. Nishizawa, and S. Yoden (2010), Classification of polar-night jet oscillations and their relationship to fast and slow variations in a global mechanistic circulation model of the stratosphere and troposphere, J. Clim., 23, 6438-6444. doi:10.1175/2010JCLI3458.1

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