YAMAMOTO, Mamoru

Division：Research Institute for Sustainable Humanosphere Professor
Main Research: Initiative 3 "The Forestry Model of Sustainable Humanosphere"
Project Title：

2011 G-COE Research Outcome:

• Thampi, S. V., N. Balan, C.-H. Lin, H. Liu, and M. Yamamoto, Mid-latitude Summer Night time Anomaly (MSNA) Observations and Model Simulations, Ann. Geophys., 29, 157-165, 2011.
• Adachi, T., Y. Otsuka, M. Yamaoka, M. Yamamoto, K. Shiokawa, A. B. Chen, R.-R. Hsu, First satellite-imaging observationa of medium-scale traveling ionospheric 2 disturbances by FORMOSAT-2/ISUAL, Geophys. Res. Lett., 38, L04101, doi:10.1029/2010GL046268, 2011.
• N. Balan, M. Yamamoto, V. Sreeja, I. S. Batista, K. J. W. Lynn, M. A. Abdu, S. Ravindran3, T. Kikuchi6, Y. Otsuka6, K. Shokawa and S. Alex, A statistical study of the response of dayside equatorial F2 layer 2 to the main phase of intense geomagnetic storms, J. Geophys. Res., 116, A03323, doi:10.1029/2010JA016001, 2011.
• Tabata, Y., H. Hashiguchi, M. K. Yamamoto, M. Yamamoto, M. D. Yamanaka, S. Mori, F. Syamsudin, and T. Manik, Observational study on diurnal precipitation cycle in equatorial Indonesia using 1.3-GHz wind profiling radar network and TRMM precipitation radar, J. Atmos. Solar-Terr. Phys., 73 (9), 1031-1042, doi:10.1016/j.jastp.2010.10.003, 2011.
• Tabata, Y., H. Hashiguchi, M.K. Yamamoto, M. Yamamoto, M.D. Yamanaka, S. Mori, Fadli Syamsudin, and Timbul Manik, Lower Tropospheric Horizontal Wind over Indonesia: A Comparison of Wind-profiler Network Observations with Global Reanalyses, J. Atmos. Solar-Terr. Phys., 73(9), doi:10.1016/j.jastp.2010.09.016, 986-995, 2011.
• Liu H., and M. Yamamoto, Weakening of the mid-latitude summer night anomaly during geomagnetic storms, Earth Planets and Space, 63(4), 371-375, 2011.
• Balan, N., M. Yamamoto, J. Y. Liu, Y. Otsuka, H. Liu, and H. Luhr, New aspects of thermospheric and ionospheric storms revealed by CHAMP, J. Geophys. Res., 116, A07305, doi:10.1029/2010JA016399, 2011.
• Thampi, S. V., M. Yamamoto, C. Lin, and H. Liu, Comparison of FORMOSAT3/COSMIC radio occultation measurements with radio tomography, Radio Sci., 46, RS3001, doi:10.1029/2010RS004431, 2011.
• Liu, H., E. Doornbos, M. Yamamoto, and S. T. Ram, Strong thermospheric cooling during the 2009 major stratosphere warming, Geophys. Res. Lett., 38, L12102, doi:10.1029/2011GL047898, 2011.
• Yamamoto, M. K., T. Mega, N. Ikeno, T. Shimomai, H. Hashiguchi, M. Yamamoto, M. Nakazato, T. Tajiri, and T. Ichiyama, Doppler velocity measurement of portable X-band weather radar equipped with magnetron transmitter and IF digital receiver, IEICE Transactions on Communications, E94-B (6), 1716-1724, 2011.
• Liu, H., M. Yamamoto, S. Tulasi Ram, T. Tsugawa, Y. Otsuka, C. Stolle, E. Doornbos, K. Yumoto, and T. Nagatsuma, Equatorial electrodynamics and neutral background in the Asian sector during the 2009 stratospheric sudden warming, J. Geophys. Res., 116, A08308, doi:10.1029/2011JA016607, 2011.
• Yokoyama, T., M. Yamamoto, Y. Otsuka, M. Nishioka, T. Tsugawa, S. Watanabe, and R. F. Pfaff, On post-midnight low-latitude ionospheric irregularities during solar minimum: 1. Equatorial Atmosphere Radar and GPS-TEC observations in Indonesia, J. Geophys. Res., 116, A11325, doi:10.1029/2011JA016797, 2011.
• Yokoyama, T., R. F. Pfaff, P. A. Roddy, M. Yamamoto, and Y. Otsuka, On post-midnight low-latitude ionospheric irregularities during solar minimum: 2. C/NOFS observations and comparison with Equatorial Atmosphere Radar, J. Geophys. Res., 116, A11326, doi:10.1029/2011JA016798, 2011.
• Yamamoto, M. K., T. Mega, N. Ikeno, T. Shimomai, H. Hashiguchi, M. Yamamoto, M. Nakazato, T. Tajiri, and Y. Ohigashi, Assessment of radar reflectivity and Doppler velocity measured by Ka-band FMCW Doppler weather radar, J. Atmos. Electr., 31(2), in press, 2011.
• Tsunoda, R. T., M. Yamamoto, T. Tsugawa, T. L. Hoang, S. Tulasi Ram, S. V. Thampi, H. D. Chau, and T. Nagatsuma, On seeding, large-scale wave structure, equatorial spread F, and scintillations over Vietnam, Geophysical Research Letters, 38, L20102, doi:10.1029/2011GL049173, 2011.
• Sudarsanam, Tulasi Ram, M. Yamamoto, H. Liu, B. Veenadhari and S. Alex, Comment on "Westward electric field penetration to the dayside equatorial ionosphere during the main phase of the geomagnetic storm on 22 July 2009, Journal of Geophysical Research, 116, A06315, doi:10.1029/2011JA016634, 2011
• Sudarsanam, Tulasi Ram, M. Yamamoto, R. T. Tsunoda and S. V. Thampi, On the application of differential phase measurements to study the zonal large scale wave structure (LSWS) in the ionospheric electron content, Radio Science, Radio Science, 2011RS004870, in press, 2012.
• Sudarsanam, Tulasi Ram, M. Yamamoto, B. Veenadhari and Sandeep Kumar, Corotating Interaction Regions (CIRs) at sub-harmonic solar rotational periods and their impact on Ionosphere-Thermosphere system during the extreme low solar activity year, 2008, submitted to Indian Journal of Radio and Space Physics, 2011-SP-IJRSP-001, 2012.

List of Academic Presentations during 2011:

• M. Yamamoto, Y. Otsuka, T. Nagatsuma, T. Tsugawa, Sri Kaloka P., Current Status of Research Enhancement and System Establishment for Space Weather in Indonesia, 2011 International Workshop on Space Weather in Indonesia, LAPAN Bandung, Indonesia, 21 September 2010.
• M. Yamamoto, Equatorial Atmosphere Radar (EAR) ~ Research Activity since 2001 ~, Ceremony for 10th Anniversary of the Equatorial Atmosphere Radar, RISTEK Auditorium, Jakarta, Indonesia, 22, September 2011
• T. Yokoyama, R. F. Pfaff, P. A. Roddy, M. Yamamoto, and Y. Otsuka, Post-Midnight Low-Latitude Ionospheric Irregularities During Solar Minimum Observed With the C/NOFS Satellite and the Equatorial Atmosphere Radar in Indonesia, Asia Oceania Geosciences Society (AOGS) 2011, Taipei, Taiwan, August 8-12, 2011.
• M. Yamamoto, Y. Otsuka, T. Nagatsuma, T. Tsugawa, and Sri Kaloka, Research Enhancement and System Establishment for Space Weather in Indonesia, Asia Oceania Geosciences Society (AOGS) 2011, Taipei, Taiwan, August 8-12, 2011.
• H. Liu, and M. Yamamoto, Equatorial Electrodynamics and Neutral Background in the Asian Sector During the 2009 Stratospheric Sudden Warming, Asia Oceania Geosciences Society (AOGS) 2011, Taipei, Taiwan, August 8-12, 2011.