Kohma, M., K. Sato, D. C. Fritts, and T. S. Lund (2025), Horseshoe-Shaped Vortices Accompanied With Breaking of Upward Propagating Gravity Waves and Their Relation to Mean-Flow Acceleration, J. Geophys. Res.-Atmos., 130, e2025JD044742. doi:10.1029/2025JD044742

PDF データセット DOI

Shibata, T., S. Yamamoto, K. Sato, M. Kohma, and D. Koshin (2025), A Climatology of Filaments Emanating from the Stratospheric Polar Vortex in the Southern Hemisphere, SOLA, 21, 483-491. doi:10.2151/sola.2025-058

DOI

河谷芳雄, 佐藤薫, 堀之内武, 江口菜穂, 木下武也, 高麗正史, 小林ちあき, 坂崎貴俊, 原田やよい, 藤原正智, 渡辺真吾, 秋吉英治, 稲飯洋一, 奥井晴香, 黒田友二, 小新大, 小玉知央, 小寺邦彦, 菅原敏, 田口正和, 直江寛明, 中村哲, 野口峻佑, 廣岡俊彦, 町田敏暢, 宮崎和幸, 三好勉信, 向川均, 安井良輔, 山下陽介, 吉田康平, and 余田成男 (2025), 日本の中層大気研究の現状と展望, 天気, 72, 211-239. doi:10.24761/tenki.72.5_211

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Asumi, A., K. Sato, M. Kohma, and Y.-Y. Hayashi (2025), Climatology of the Residual Mean Circulation of the Martian Atmosphere and Contributions of Resolved and Unresolved Waves Based on a Reanalysis Data Set, J. Geophys. Res.-Planets, 130, e2023JE008137. doi:10.1029/2023JE008137

PDF DOI

Tokimori, E., Kohma, M., and Sato, K. (2025), A statistical study of gravity waves in the troposphere and lower stratosphere in the Antarctic based on the PANSY radar observations, J. Meteor. Soc. Japan, 103, 113-125. doi:10.2151/jmsj.2025-006

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Yoshida, L., Tomikawa, Y., Ejiri, M. K., Kohma, M., and Sato, K. (2024), Large-Amplitude Inertia Gravity Waves Over Syowa Station: Comparison of PANSY Radar and ERA5 Reanalysis Data, J. Geophys. Res.-Atmos., 129, e2023JD040490. doi:10.1029/2023JD040490

DOI

Tomikawa, Y., Murata, I., Kohma, M., and Sato, K. (2024), Simultaneous Observation of Near-Inertial Frequency Gravity Waves by a Long-Duration Balloon and the PANSY Radar in the Antarctic, J. Meteor. Soc. Japan, doi:10.2151/jmsj.2024-034

DOI

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., 129, e2023JD039425. doi:10.1029/2023JD039425

PDF データセット DOI

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

DOI

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

DOI

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

DOI

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

PDF DOI

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

PDF DOI

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

DOI

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

PDF DOI

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

PDF DOI

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

PDF DOI

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

PDF DOI

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

PDF DOI

高麗正史 (2019), 極域対流圏界面雲の出現に関する力学的研究―2016年度山本賞受賞記念講演―, 天気, 66(6), 411-419. doi:10.24761/tenki.66.6_411

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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

PDF DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

DOI

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

プロジェクト 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

PDF DOI

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

PDF DOI

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

DOI