1 1. The electric field changes and UHF radiation caused by the lightning in Japan, Z-I. Kawasaki, T. Kanao, K. Matsu-ura, M. Nakano, K. Horii, and K. Nakamura, Geophys. Res. Lett., 18, 9, pp.1711-1714, 1991.2. Common physical processes in natural and triggered lightning in winter storms in Japan, Z-I. Kawasaki and V. Mazur, J. Geophys. Res., 97, D12, pp.12935-12945, 1992.3. SAFIR operation and evaluation of its performance, Z-I. Kawasaki, K. Yamamoto, K. Matsu-ura, P. Richard, T. Matsui, Y. Sonoi, and N. Shimokura, Geophys. Res. Lett., 21, 12, pp.1133-1136, 1994.4. A preliminary study on laser-triggered lightning, D. Wang, Z-I. Kawasaki, K. Matsu-ura, Y. Shimada, S. Uchida, C. Yamanaka, E. Fujiwara, Y. Izawa, N. Shimokura, and Y. Sonoi, J. Geophys. Res., 99, D8, pp.16907-16912, 1994.5. Simultaneous measurement of lightning parameters for strokes to the Toronto Canadian national tower, A. M. Hussein, W. Janischewskyj, J.-S. Chang, V. Shostak, W.A. Chisholm, P. Dzurevych, and Z-I. Kawasaki, J. Geophys. Res., 100, D5, pp.8853-8861, 1995.6. Luminous propagation of lightning attachment to CN tower, D. Wang, Z-I. Kawasaki, K.Yamamoto, K. Matsu-ura, J. S. Chang, and W. Janischewskyj, J. Geophys. Res., 100, D6, pp.11661-11667, 1995. 7. Broadband interferometric measurement of rocket triggered lightning in Japan, T. Ushio, Z-I. Kawasaki, Y. Ohta and K. Matsu-ura, Geophys. Res. Lett., 24, 22, pp.2769-2772, 1997.8. Electric fields of initial breakdown in positive ground flash, T. Ushio, Z-I. Kawasaki, K. Matsu-ura, and D. Wang, J. Geophys. Res., 103, D12, pp.14135-14139, 1998.9. Attachment process in rocket-triggered lightning strokes, D. Wang, V. A. Rakov, M. A. Uman, N. Takagi, T. Watanabe, D. E. Crawford, K. J. Rambo, G. H. Schnetzer, R. J. Fisher, and Z-I. Kawasaki, J. Geophys. Res., 104, D2, pp.2143-2150, 1999.10. Spatial and temporal properties of optical radiation produced by stepped leaders, M. Chen, N. Takagi, T. Watanabe, D. Wang, Z-I. Kawasaki, and X. Liu, J. Geophys. Res., 104, D22, pp.27573-27584, 1999.11. Sprite observation in the Northern Territory of Australia, S. F. Hardman, R. L. Dowden, J. B. Brundell, J. L. Bahr, Z-I. Kawasaki, and C. J. Roger, J. Geophys. Res., 105, D4, pp.4689-4697, 2000.12. Dependency of VHF broadband lightning source mapping on Fourier spectra, R. Mardiana and Z-I. Kawasaki, Geophys. Res. Lett., 27, pp.2917-2920, 2000.13. Broadband and narrowband RF interferometers for lightning observations, Z-I. Kawasaki, Redy Mardiana, Tomoo Ushio, Geophys. Res. Lett., 27 19, 10.1029/1999GL 011058, 2000.14. Impact of the 1997-98 El Niño event of lightning activity over Indonesia, E. Y. Hamid, Z-I. Kawasaki, and R. Mardiana, Geophys. Res. Lett., 28, 1, pp.147-150, 2001.15. A survey of thunderstorm flash rates compared to cloud op height using TRMM satellite data, T. Ushio, S. J. Heckman, D. J. Boccippio, H. Christian, and Z-I. Kawasaki, J. Geophys. Res., 106, pp.24089-24095, 2001.16. Downward emission of runnaway electrons and bremsstrahlung photons in thunderstorm electric fields, T. Torii, T. Nishijima, Z-I. Kawasaki, and T. Sugita, Geophys. Res. Lett., 31, L05113, L19067, 2004.17. Sprite lightning heard round the world by Schumann resonance methods, E. R. Williams, V. C. Mushtak, R. Boldi, R. L. Dowden, and Z-I. Kawasaki, Radio Science, 42, RS2S20, doi:10.1029/2006RS003498, 2007.18. Measurements of reactive nitrogen produced by tropical thunderstorms during BIBLE-C, M. Koike, Y. Kondo, K. Kita, N. Takegawa, N. Nishi, T. Kashihara, S. Kawakami, S. Kudoh, D. Blake, T. Shirai, B. Liley, M. Ko, Y. Miyazaki, Z-I. Kawasaki, and T. Ogawa, J. Geophys. Res., 112, D18304, doi:10.1029/2006JD008193, 2007.19. ENSO and convective activities in Southeast Asia and western Pacific, S. Yoshida, T. Morimoto, T. Ushio, and Z-I. Kawasaki, Geophys. Res. Lett., 34, L21806, doi:10.1029/2007GL030758, 2007.20. High energy photon and electron bursts associated associated with upward lightning, S. Yoshida, T. Morimoto, T. Ushio, Z.-I. Kawasaki, T. Torii, D. Wang, T. Takagi, and T. Watanabe, Geophys. Res. Lett., 35, L10804, doi:10.1029/2007GL032438, 2008.21. A fifth-power relationship for lightning activity from Tropical Rainfall Measuring Mission satellite observations, S. Yoshida, T. Morimoto, T. Ushio, and Z.-I. Kawasaki, J. Geophys. Res., 114, D09104, doi:10.1029/2008JD010370, 2009.22. Three-dimensional imaging of upward leaders in triggered lightning using VHF broadband digital interferometers, S. Yoshida, C.J. Biagi, V.A. Rakov, J.D. Hill, M.V. Stapleton, D.M. Jordan, M.A. Uman, T. Morimoto, T. Ushio, and Z.-I. Kawasaki, Geophys. Res. Lett., 37, L05805, doi:10.1029/2009GL042065, 2010.23. What occurs in K process of cloud flashes? M. Akita, Y. Nakamura, S. Yoshida, T. Morimoto, T. Ushio, Z-I. Kawasaki, and D. Wang, J. Geophys. Res., 115, D07106, doi:10.1029/2009JD012016, 2010.24. Vertical structure of raindrop size distribution in lower atmospheric boundary layer, E. Yoshikawa, S. Kida, S. Yoshida, T. Morimoto, T. Ushio, and Z-I. Kawasaki, Geophys. Res. Lett., 37, L20802, doi:10.1029/2010GL045174, 2010.25. The initial stage processes of rocket-and-wire triggered lightning as observed by VHF interferometry, S. Yoshida, C. J. Biagi, V. A. Rakov, J. D. Hill, M. A. Stapleton, D. M. Jordan, M. A. Uman, T. Morimoto, T. Ushio, Z-I. Kawasaki, and M. Akita, J. Geophys. Res., 117, D09119, doi:10.1029/2012JD017657, 2012.26. Discharge height of lightning narrow bipolar events, T. Wu, W. Dong , Y. Zhang , T. Funaki , S. Yoshida, T. Morimoto , T. Ushio ,Z. Kawasaki, J. Geophys. Res., 117, D05119, doi:10.1029/2011JD017054, 2012.27. Spatial relationship between lightning narrow bipolar events and parent thunderstorms as revealed by phased array radar, Wu, T., Y. Takayanagi, S. Yoshida, T. Funaki, T. Ushio, and Z-I. Kawasaki, Geophys. Res. Lett.., 40, doi:10.1002/grl.50112, 2013.28. Large bipolar lightning discharge events in winter thunderstorms in Japan, Ting Wu, Satoru Yoshida, Tomoo Ushio, Z-I. Kawasaki, Yuji Takayanagi, and Daohong Wang, J. Geophys. Res., 119, doi:10.1002/2013JD020369, 2014.29. Continuous Broadband Digital Interferometry of Lightning using a Generalized Cross Correlation Algorithm, Stock, M., M. Akita, P. Krehbiel, W. Rison, H. Edens, Z-I. Kawasaki, and M. Stanley, J. Geophys. Res. 119, doi:10.1002/2013JD020217, 2014.30. Data Processing Procedure using Distribution of Slopes of Phase Differences for Broadband VHF Interferometer, Akita, M., M. Stock, Z-I. Kawasaki, P. Krehbiel, W. Rison, and M. Stanley, J. Geophys. Res. 119, doi;10.1002/2013JD020378, 2014.31. Lightning-initiator type of narrow bipolar events and their subsequent pulse trains, Wu, T., S. Yoshida, Z-I. Kawasaki, and D. Wang, J. Geophys. Res, 119, doi:10.1002/2014J021842, 2014.