九州大学 研究者情報
論文一覧
山本 勝(やまもと まさる) データ更新日:2019.06.11

准教授 /  応用力学研究所 地球環境力学部門 大気物理分野


原著論文
1. Masaru Yamamoto, Equatorial Kelvin-like waves on slowly rotating and/or small-sized spheres
Application to Venus and Titan, Icarus, 10.1016/j.icarus.2019.01.008, 322, 103-113, 2019.04, [URL], Equatorial Kelvin waves, which have been observed in planetary fluids, produce superrotation and climatological variability. Although the meridional flow component is zero on Earth's beta-plane in the absence of background basic flow, it cannot be neglected on spheres in some planetary fluids when the Lamb parameter is small. For a vertically propagating Kelvin-like wave in the absence of background wind shear, meridional flows produce equatorward heat transport, i.e., a downward Eliassen-Palm flux. The vertical momentum transport caused by the equatorward heat flux has a theoretical upper limit, and the normalized flux is analytically expressed as a simple function that is independent of the Lamb parameter. On a slowly rotating and/or small-sized planet, we need to consider the meridional flow component of the equatorial Kelvin-like wave and its related heat flux on the sphere, and further consider their modification owing to background flow shear through coupling with high-latitude Rossby waves..
2. Masaru Yamamoto, Kohei Ikeda, Masaaki Takahashi, Takeshi Horinouchi, Solar-locked and geographical atmospheric structures inferred from a Venus general circulation model with radiative transfer, Icarus, 10.1016/j.icarus.2018.11.015, 321, 232-250, 2019.03, [URL], Solar-locked and geographical atmospheric structures of daily averaged wind and temperature on Venus were investigated using an atmospheric general circulation model with Venusian topography and a two-stream radiative code and were compared with wind fields obtained from the Akatsuki ultraviolet imager. The horizontal wind fields simulated around the subsolar region are similar to the observed ones at the cloud top. Mid-latitude jets of ∼120 m s–1 and an equatorial fast flow of ∼90 m s–1 are formed around the cloud top. A poleward flow of >8 m s–1 is formed above the cloud layer, where solar heating is strong. Around the cloud top, a poleward flow of ∼1 m s–1 is confined within the equatorward flank of the jet core, whereas an indirect circulation is formed in the jet core by the eddy heat fluxes owing to the thermal tide and baroclinic waves. In solar-fixed coordinates, the subsolar-to-antisolar circulation is predominant around the cloud top. Thus, differences are significant between the zonal and dayside averages of the meridional wind and its related fluxes within the cloud layer. This suggests the zonal mean meridional wind of the Hadley circulation, eddy momentum, and heat fluxes from the one-side hemisphere must be estimated carefully. In the experiment including topography, a near-surface subrotation is formed in latitudinal zones over high land and mountains, a weakly stable layer is formed at 10–20 km at low latitudes, and the zonal wind is weakened at the cloud top over the Aphrodite Terra. Regional stationary modification of the atmospheric structure due to topographical waves appears in the cloud layer..
3. Yutaro Yokoyama, Masaru Yamamoto, Influences of surface heat flux on twin cyclone structure during their explosive development over the East Asian marginal seas on 23 January 2008, Weather and Climate Extremes, 10.1016/j.wace.2019.100198, 23, 2019.03, [URL], The formation of explosively developing twin extratropical cyclones is investigated for background conditions involving a transition from double jets to a single jet. Upper-level double jets produced a latitudinally wide baroclinic zone before formation of the twin cyclones. In the early development stage, those double jets merged into the single jet with a strong potential vorticity (PV) streamer that moved to the Japan Sea and coupled with lower-level PV of the northernmost of the twin cyclones. Subsequently, the area of high PV associated with the single jet migrated to the northwestern Pacific, and the upper-level trough coupled with the southernmost of the twin cyclones. The northern low over the Japan Sea then merged with the developing southern low over the Pacific. For this case, sensitivity experiments suggest that sea surface turbulent heat flux before formation of the cyclones is crucial to formation of the twin cyclone structure, via development of a latitudinally elongated trough. Both Eady growth rate and water vapor mixing ratio near the surface were maintained by a strong sea surface turbulent heat flux and contributed to the development of the latitudinally elongated trough around Japan, where diabatic PV production strengthening the two lows separated into two distinct areas. The twin cyclone structure was formed when the lower-level trough extended from the humid Pacific region was developed by the surface turbulent heat flux. While the upper-level PV coupled with the northernmost low over the Japan Sea, the southernmost low developed independently in the lower-level Pacific region..
4. Young Hyang Park, Baek Min Kim, Gyundo Pak, Masaru Yamamoto, Frédéric Vivier, Isabelle Durand, A key process of the nonstationary relationship between ENSO and the Western Pacific teleconnection pattern, Scientific reports, 10.1038/s41598-018-27906-z, 8, 1, 2018.12, [URL], Recent studies have discovered an intriguing nonstationary relationship between El Ninõ-Southern Oscillation (ENSO) and the Western Pacific (WP) teleconnection pattern, one of the most prominent winter atmospheric circulation patterns in the North Pacific, with a regime-dependent interdecadal modulation of significant and insignificant correlations. However, the physical process underlying the observed nonstationary ENSO-WP relationship is a puzzle and remains to be elucidated, which is also essential for clarifying the still-debated nontrivial issue on whether the WP is directly forced by ENSO or by midlatitude storm tracks-driven intrinsic processes. Based on empirical orthogonal function (EOF) analysis of the upper-tropospheric teleconnection patterns and associated Rossby wave sources (RWS), we show that the nonstationarity in question is due to the regime-dependent constructive or destructive interference in meridional overturning circulation between the two leading EOFs of RWS best correlated with ENSO and WP, respectively. The observed insignificant correlation between ENSO and the WP after the 1988 regime shift can be explained by interrupted teleconnection between the tropics and high latitudes due to the collapse of the subtropical bridge pillar in the jet entrance region, consequence of the destructive interference. This suggested interference mechanism related to the regime-dependent upper-level RWS fields has significant implications for resolving the puzzle that hinders better understanding of decadal regime behaviors of the climate system in the North Pacific..
5. Masaru Yamamoto, Migration of contact binary cyclones and atmospheric river
Case of explosive extratropical cyclones in East Asia on December 16, 2014, Dynamics of Atmospheres and Oceans, 10.1016/j.dynatmoce.2018.05.003, 83, 17-40, 2018.09, [URL], Contact binary cyclones have been observed often in the marginal sea areas of East Asia; however, their explosive development and related moisture transport are not understood fully. This study investigated explosive extratropical binary cyclones that occurred near Japan on December 16, 2014, to elucidate both their explosive development and their efficient transport of moisture northward. The northernmost of the binary cyclones developed with a central pressure fall of 24 hPa during a 24-h period. It remained over the Japan Sea, where a trough and an area of high potential vorticity were located at 300 hPa. The southernmost of the binary cyclones developed explosively with a central pressure fall of 58 hPa during a 24-h period. It traveled rapidly around the northern low in a counterclockwise direction. The contact binary cyclones accompanied a tributary atmospheric river and moist delta, which aided the rapid development of the southern low. The tributary atmospheric river was formed by the regional convergence of humid air parcels that were modified by the surface moisture flux around the cold front (though the atmospheric river was extended from the tropical Pacific Ocean). As the southern low developed, northward moisture transport was predominant along the atmospheric river. In the explosive binary cyclones, the influence of latent heat release differed between the two contact lows. While the northern low was coupled with the upper-level trough over the Japan Sea, the southern surface low, which revolved around the northern low, was intensified both by the latent heat release and by the warm horizontal thermal advection and the vorticity advection along a front. Condensational latent heating did not influence substantially the pressure drop of the northern low, whereas it contributed considerably to the formation of the southern low and to the enhancement of the northward moisture transport along the atmospheric river..
6. Ning Zhao, Shinsuke Iwasaki, Masaru Yamamoto, Atsuhiko Isobe, Modulation of Extratropical Cyclones by Previous Cyclones via the Sea Surface Temperature Anomaly Over the Sea of Japan in Winter, Journal of Geophysical Research: Atmospheres, 10.1029/2017JD027503, 123, 12, 6312-6330, 2018.06, [URL], The effects of a cyclone-induced sea surface temperature (SST) anomaly in the Sea of Japan on following cyclones were investigated using a regional numerical model. The model was conducted with and without an SST anomaly due to cooling from a single extratropical cyclone in winter. Twenty-six pairs of sensitivity experiments demonstrated that cyclones were not always sensitive to the SST anomaly. The low-level trough (strong northwesterly winds) affected cyclone sensitivity via a cold air intrusion over the Sea of Japan. A strong (weak) cold air intrusion formed a relatively unstable (stable) and higher (lower) convective layer and the concentration of cyclone paths over the oceans, making the cyclones sensitive to the underlying SST. Two specific cyclones were analyzed to demonstrate two distinct patterns (wave-like and path shifting, respectively) in cyclone modulations revealed in the wavelet spectra. The wave-like pattern was formed by the superposition of multiple anomalous waves with different periods and scales, which originated from upper-level potential vorticity anomalies and temperature advection. The path-shifting pattern was caused by the diabatic heating-induced potential vorticity anomalies, which were supplied by the intense heat and moisture from the regions surrounding the Sea of Japan. Therefore, a cyclone can modulate a following cyclone by reducing the SST over the Sea of Japan; however, the modulation can vary in different ways, depending on the atmospheric background and dynamics of the cyclone development..
7. Masaru Yamamoto, Masaaki Takahashi, Effects of polar indirect circulation on superrotation and multiple equilibrium in long-term AGCM experiments with an idealized Venus-like forcing: sensitivity to horizontal resolution and initial condition, Journal of Geophysical Research - Planets, 123, 708-728, 2018.03.
8. Masaru Yamamoto and Masaaki Takahashi, Dynamical relationship between wind speed magnitude and meridional temperature contrast: Application to an interannual oscillation in Venusian middle atmosphere GCM, Icarus, 303, 131-148, 2018.03.
9. Masaru Yamamoto, Probability distribution of surface wind speed induced by convective adjustment on Venus, Icarus, 284, 314-324, 2017.03.
10. M. Nakamura et al., (31st author) Masaru Yamamoto, AKATSUKI returns to Venus, Earth, Planets and Space, 10.1186/s40623-016-0457-6, 68, article ID 75, 2016.05.
11. Masaru Yamamoto, Masaaki Takahashi, General circulation driven by baroclinic forcing due to cloud-layer heating: significance of planetary rotation and polar eddy heat transport, Journal of Geophysical Research - Planets, 121, 558-573, 2016.04.
12. Masaru Yamamoto, Masaaki Takahashi, Dynamics of polar vortices at cloud top and base on Venus inferred from a general circulation model: case of a strong diurnal thermal tide, Planetary and Space Science, 113-114, 109-119, 2015.08.
13. Masaru Yamamoto, Vertical momentum and heat transport induced by wave breaking and cloud feedback heating in the Venusian atmosphere, Theoretical and Applied Mechanics Japan, 63, 165-174, 2015.06.
14. Masaru Yamamoto, Meteorological impacts of sea-surface temperature associated with the humid airflow from Tropical Cyclone Talas (2011), Annales Geophysicae, 32, pp.841-857, 2014.07.
15. Masaru Yamamoto, A Moment Method of the Log-Normal Size Distribution with the Critical Size Limit in the Free-Molecular Regime, Aerosol Science and Technology, 47, pp.725-737, 2014.05.
16. Masaru Yamamoto, Idealized numerical experiments on microscale eddies in the Venusian cloud layer, Earth Planets Space, 66:27 (15 pages), 2014.04.
17. Masaru Yamamoto, Effects of a semi-enclosed ocean on extratropical cyclogenesis: the dynamical processes around the Japan Sea on 23-25 January 2008, Journal of Geophysical Research, DOI:10.1002/jgrd.50802, 118, pp.10391-10404, 2013.08.
18. Yamamoto Masaru, Numerical error analysis of solvers using cumulative number distribution with volume-ratio grid spacing in initially particle-free nucleation-condensation systems, Aerosol and Air Quality Research, doi:10.4209/aaqr.2012.02.0042, 12, pp.1125-1134, 2012.12.
19. Masaru Yamamoto, Rapid merger and recyclogenesis of twin extratropical cyclones leading to heavy precipitation around Japan on 9-10 October 2001, Meteorological Applications, doi:10.1002/met.255, 19, 36-53, 2012.03.
20. Yamamoto, M., Mesoscale structures of two types of cold-air outbreaks over the East China Sea and the effect of coastal sea surface temperature, Meteorology and Atmospheric Physics, doi:10.1007/s00703-011-0176-2, 115, 89-112, 2012.02.
21. Yamamoto, M. and M. Takahashi, Venusian middle-atmospheric dynamics in the presence of a strong planetary-scale 5.5-day wave, Icarus , doi:10.1016/j.icarus.2011.06.017, 217, 702-713, 2012.01.
22. Yamamoto, M. T. Ohigashi, K. Tsuboki and N. Hirose, Cloud-resolving simulation of heavy snowfalls in Japan for late December 2005: application of ocean data assimilation to a snow disaster case, Natural Hazards and Earth System Sciences, 11, 2555-2565, 2011.09.
23. Maeda, Y., M.Yamamoto, N.Hirose, Meteorological influences of eddy-resolving ocean assimilation around the cold tongue to the north of the Japanese Islands during winter 2004/2005, Asia-Pacific Journal of Atmospheric Sciences, 47, 4, 319-327, 2011.08.
24. M. Nakamura et al. (JAXA 他), (30th author) Masaru Yamamoto, Overview of Venus orbiter, Akatsuki, Earth Planets Space, 63, 5, 443-457, 2011.05.
25. Ueda, A., M. Yamamoto, and N. Hirose, Meteorological influences of SST anomaly over the East Asian marginal sea on the subpolar and polar regions: A case of an extratropical cyclone on 5-8 November 2006, Polar Science, 5, 1-10, 2011.04.
26. Yamamoto, M. and N. Hirose, Possible modification of atmospheric circulation over the northwestern Pacific induced by a small semi-enclosed ocean, Geophysical Research Letters, doi:10.1029/2010GL046214, 38, L03804, 2011.02.
27. Kae Kuriyama, Masaru Yamamoto, Interannual and synoptic-scale features of two types of cold-air outbreaks over the East China Sea during 1988–2006, Theoretical and Applied Climatology, 103, 291-304, 2011.02.
28. Yamamoto, M., Microscale simulations of Venus’ convective adjustment and mixing near the surface: thermal and material transport , Icarus , 211, 993-1006, 2011.01.
29. 前田裕子、山本勝, 2005 年1 月における日本海気象シミュレーション:微物理スキームの氷相の扱いが降水およびその環境場に与える影響, 海洋気象学会誌「海と空」, 85, 131-140, 2010.03.
30. Yamamoto, M. and N. Hirose, Atmospheric simulations using OGCM-assimilation SST: Influence of the wintertime Japan Sea on monthly precipitation, Terrestrial, Atmospheric and Oceanic Sciences, 21, 1, 113-122, 2010.02.
31. Yamamoto, M. and M. Takahashi, Dynamical effects of solar heating below the cloud layer in a Venus-like atmosphere, Journal of Geophysical Research -Planets, doi:10.1029/2009JE003381, 114, E12004, 2009.12.
32. Yamamoto, M. and M. Takahashi, Influences of Venus' topography on fully developed superrotation and near-surface flow, Earth Planets Space, 61, e45-e48, 2009.11.
33. Yamamoto, M. and N. Hirose, Regional atmospheric simulation of monthly precipitation using high-resolution SST obtained from an ocean assimilation model: Application to the wintertime Japan Sea, Monthly Weather Review, 137, 7, 2164–2174, 2009.07.
34. Hirose. N., K. Nishimura, and M. Yamamoto, Observational evidence of a warm ocean current preceding a winter teleconnection pattern in the northwestern , Geophysical Research Letters, doi:10.1029/2009GL037448, 36, L09705, 2009.05.
35. Yamamoto, M and M. Takahashi, Prograde and retrograde atmospheric rotation of cloud-covered terrestrial planets: Significance of astronomical parameters in the middle atmosphere, Astronomy and Astrophysics, Vol.490, L11-L14, 2008.11.
36. 栗山佳恵、山本勝, 那覇における寒気吹き出し構造と冬季モンスーンの経年変化, 日本気象学会誌「天気」, Vol. 55, 737-746, 2008.09.
37. Yamamoto. M and N. Hirose, Influence of assimilated SST on regional atmospheric simulation: A case of a cold-air outbreak over the Japan Sea, Atmospheric Science Letters, Vol 9, pp 13-17, 2008.01.
38. Yamamoto, M. and M. Takahashi, A parametric study of superrotation of Venus-like planets: Effects of obliquity and period of planetary rotation, Theoretical and Applied Mechanics Japan, Vol 56, pp.335-341, 2007.11.
39. Yamamoto, M. and M. Takahashi, Simulations of superrotation using a GCM for Venus’ middle atmosphere, Earth Planets Space, Vol.59, pp. 971–979, 2007.08.
40. Yamamoto, M. and M. Takahashi, A parametric study of atmospheric superrotation on Venus-like planets: effects of oblique angle of planetary rotation axis, Geophysical Research Letters, Vol. 34, L16202, doi:10.1029/2007GL030220, 2007.08.
41. Yamamoto, M. and N. Hirose, Impact of SST reanalyzed using OGCM on weather simulation: A case of a developing cyclone in the Japan-Sea area, Geophys. Res. Lett., Vol. 34, L05808, doi:10.1029/2006GL028386, 2007.03.
42. Yamamoto, M, A Moment Method for Evaporation in the Free Molecular Regime: Sensitivity to Time-Integration Scheme, Journal of Aerosol Research Japan (Earozoru Kenkyu), Vol. 22, No. 1, pp.41-47, 2007.03.
43. Yamamoto, M. and M. Takahashi, Superrotation Maintained by Meridional Circulation and Waves in a Venus-Like AGCM, J. Atmos. Sci., Vol.63, No.12, pp.3296-3314, 2006.12.
44. Yamamoto, M. and M. Takahashi, Stationary and slowly propagating waves in a Venus-like AGCM: Roles of topography in Venus' atmospheric dynamics, Theor. Appl. Mech. Japan, Vol 55, pp.201-207, 2006.11.
45. Yamamoto, M. and M. Takahashi, An aerosol transport model based on a two-moment microphysical parameterization in the Venus middle atmosphere: Model description and preliminary experiments, J. Geophy. Res., Vol.111, E08002, doi:10.1029/2006JE002688, 2006.08.
46. Yamamoto, M. and H. Tanaka, Are geostrophic and quasigeostrophic approximations valid in Venus' differential superrotation?, Geophy. Astrophys. Fluid Dyn., Vol. 100, No. 3, pp.185-195, 2006.06.
47. Yamamoto, M., Application of a Multipurpose Finite Element Solver to Condensation Simulation: Use of Adaptive Mesh Refinement and Automatic Time Step Control, J. Aeros. Res. Japan (Earozoru Kenkyu), Vol. 21, pp.51-58, 2006.03.
48. Yamamoto, M., A Moment Method for Evaporation Using a Logarithmic Size Distribution with the Smallest Size, Aerosol Science and Technology, Vol.39, pp.790-798, 2005.08.
49. Yamamoto, M., A Solver for Aerosol Condensation Equation by Semi-Lagrangian Scheme with Correction Exactly Conserving Total Particle Number, Aerosol Science and Technology, Vol. 38, pp.1033-1043, 2004.10.
50. Yamamoto, M. and H. Tanaka, Geostrophic Approximation in Horizontally Differential Atmospheric Rotation, Theor. Appl. Mech. Japan, Vol.53, pp.273-279, 2004.10.
51. Yamamoto, M. and M. Takahashi, Dynamics of Venus' superrotation: the eddy momentum transport processes newly found in a GCM, Geophys. Res. Lett., Vol.31, doi:10.1029/2004GL019518, 2004.05.
52. Yamamoto, M., A Moment Method of an Extended Log-Normal Size Distribution (ELND): Application to Brownian Aerosol Coagulation, J. Aeros. Res. Japan (Earozoru Kenkyu), Vol.19, pp.41-49, 2004.03.
53. 山本勝,高橋正明, 金星の大気大循環モデルについて, 日本惑星科学会誌(遊星人), Vol.12, pp.242-247, 2003.12.
54. Yamamoto, M., Gravity waves and convection cells resulting from feedback heating of Venus' lower clouds, J. Meteor. Soc. Japan, Vol.81, pp.885-892, 2003.08.
55. Yamamoto, M. and M. Takahashi, Superrotation and equatorial waves in a T21 Venus-like AGCM, Geophys. Res. Lett., Vol.30, doi:10.1029/2003GL016924, 2003.05.
56. Yamamoto, M. and M. Takahashi, The Fully Developed Superrotation Simulated by a General Circulation Model of a Venus-like Atmosphere, J. Atmos. Sci., Vol.60, pp.561-574, 2003.02.
57. Yamamoto, M. and M. Takahashi, Roles of Atmospheric Waves in Venus' Superrotation : Results of a Venus-Like GCM for a 3D Thermal Forcing, Theor, Appl. Mech. Japan, Vol.51, pp.225-230, 2002.10.
58. Yamamoto, M., A parametric study of SO2 scale height as a probe of the sulfur cycle at the Venusian cloud top, J. Geophys. Res., Vol.106 pp.7611-7627, 2001.04.
59. Yamamoto, M., Blocky Markings and Planetary-Scale Waves in the Equatorial Cloud Layer of Venus, J. Atmos. Sci., Vol.58, pp.365-375, 2001.02.
60. Yamamoto, M. and H. Tanaka, The Venusian Y-shaped Cloud Pattern Based on an Aerosol-Transport Model, J. Atmos. Sci., Vol.55, pp.1400-1416, 1998.04.
61. Yamamoto, M. and H. Tanaka, Formation and Maintenance of the 4-Day Circulation in the Venus Middle Atmosphere, J. Atmos. Sci., Vol. 54, pp.1472-1489, 1997.06.
62. 山本 勝, 重力波で生じる金星大気の微細構造に関する数値実験, JAXA宇宙科学研究本部・第27回大気圏シンポジウム講演収録, 5-6 (4頁), 2013.05.
63. 山本 勝、広瀬直毅, 東アジア縁辺海が北西太平洋の温帯低気圧に与える影響, JAXA宇宙科学研究本部・第25回大気圏シンポジウム講演収録, 2-5 (5頁), 2011.04.
64. 山本 勝、高橋 正明, 金星中層大気GCM の開発, JAXA宇宙科学研究本部・第23回大気圏シンポジウム講演収録, P-14(4頁), 2009.05.
65. 山本勝、高橋正明, 惑星中層大気大循環の大気および天文パラメーター依存性について, 九大応力研・研究集会報告, 19ME-S8, 9-15, 2008.10.
66. 山本勝、栗山佳恵, 東シナ海SST 解像度が寒気吹き出し構造に及ぼす影響, JAXA宇宙科学研究本部・第22回大気圏シンポジウム講演収録, 5-2(4頁), 2008.06.
67. 山本勝,広瀬直毅, 衛星データ同化した日本海SSTを用いた大気シミュレーション, JAXA宇宙科学研究本部・第21回大気圏シンポジウム, 13-16頁, 2007.06.
68. 池田恒平 山本勝 高橋正明, 金星大気大循環モデルの開発とシミュレーション, 九州大学応用力学研究所研究集会報告, 17ME-S4 148-153頁, 2006.09.
69. 山本勝 高橋正明, CCSR/NIES AGCMを用いた金星大気大循環の研究, JAXA宇宙科学研究本部・第19回大気圏シンポジウム, 1-4頁, 2005.02.
70. 山本勝, 金田充代, 鯨沙也香, 江戸時代における和歌山県とその周辺の降水頻度と生物季節の異常について, 和歌山大学教育学部紀要(自然科学), 第55巻15-19頁, 2005.02.
71. Yamamoto, M. and M. Takahashi, Toward estimation of Venus' meridional circulation by using a sulfur cycle model, Proceedings of the 36th ISAS Lunar and Planetary Symposium, pp.206-209, 2003.11.
72. 山本勝, 金星大気のスーパーローテーションについて, 数理科学講究録(京大数理解析研究所), 第1311号 14-26頁, 2003.05.
73. 山本勝, 金星大気の波動による赤道向き運動量輸送, 九大応用力学研究所研究集会報告, 13ME-S7, 7-15頁, 2002.05.
74. 山本勝,高橋正明, CCSR/NIES AGCMを用いた金星大気大循環研究にむけて, 宇宙科学研究所・第14回大気圏シンポジウム, 161-164頁, 2000.03.
75. 山本勝, 波動によって生じる金星中層大気の諸現象について, 九大応用力学研究所研究集会報告, 11ME-S7, 52-61頁, 2000.03.
76. Yamamoto, M., The Oxidation and Scale-Height of SO2 at the Cloud Top in the Venus Atmosphere, Proceedings of the 32nd ISAS Lunar and Planetary Symposium, pp.212-215, 1999.08.
77. 山本勝, 金星大気における惑星スケール重力波の非線形応答について, 数理科学講究録(京大数理解析研究所), 第1092号 89-99頁, 1999.04.
78. 山本勝,田中浩, 赤道波に対する中層大気の応答について, 宇宙科学研究所・第13回大気圏シンポジウム, 188-191頁, 1999.03.
79. Yamamoto, M., Nonlinearity of Planetary-Scale Gravity Waves near the Critical Levels in the Venus Atmosphere, Proceedings of the 31st ISAS Lunar and Planetary Symposium, pp.54-57, 1998.08.
80. 山本勝,田中浩, 惑星スケール波動によって形成される金星雲模様の研究, 数理科学講究録(京大数理解析研究所), 第1030号 86-96頁, 1998.04.
81. Yamamoto, M. and H. Tanaka, Roles of Planetary-Scale Waves in the Venus Middle Atmosphere, Proceedings of the 29th ISAS Lunar and Planetary Symposium, pp.95-98, 1996.08.
82. Iijima, Y., Y. Okimura, M. Yamamoto, M. Kato, M. Arakawa, M. Higa, A. Fujimura, N. Maeno, and H. Mizutani, Cratering Experiment on Ice; the Dependence of Crater Formation on Projectile Materials, and Scaling Parameter, Proceedings of the 25th ISAS Lunar and Planetary Symposium, pp.141-146, 1992.08.

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