The Global Cloud-Resolving Model is a next-generation atmospheric global model with potential to open up new areas in numerical weather forecasting and climate simulation. The new model, called NICAM, has shown realistic behavior for precipitation systems over the global domain, particularly over the tropics. One impact of the global cloud-resolving model is the attainment of realistic simulation of rainfall in the tropics realizing a multiscale nature from kilometer to planetary, because rainfall in the tropics affects short-term local tropical weather and the long-term global climate. We review the global cloud-resolving model using simulation results from NICAM, and discuss its applicability in reducing natural weather disasters.

1. [1] P. Wu, M. Hara, H. Fudeyasu, M. D. Yamanaka, and J. Matsumoto, “The impact of trans-equatorial monsoon flow on the formation of repeated terrential rains over Java island,” SOLA, 3, 93-96, doi:10.2151/sola.2007-024. 2007.
2. [2] Malaysian Meteorological Department, “Report on heavy rainfall that caused floods in Johor, Melaka, Negeri Sembilan and Pahang during the period 17th-20th December 2006,” Research Division, Malaysian Meteorological Department, Ministry of Science, Technology and Innovasion, 21st December 2006.
3. [3] Malaysian Meteorological Department, “Report on the second heavy rainfall episode that caused floods in Johor and southern Pahang during the period 11-14 January 2007,” Research Division, Malaysian Meteorological Department, Ministry of Science, Technology and Innovasion, 16 January 2007.
4. [4] C.-P. Chang, C.-H. Liu, and H.-C. Kuo, “Typhoon Vamei: An Equatorial Tropical Cyclone Formation,” Geophys. Res. Lett., 30, 1150, doi:10.1029/2002GL016365, 2003.
5. [5] J. M. Wallace and D. S. Gutzler, “Teleconnections in the Geopotential Height Field during the Northern Hemisphere Winter,” Mon. Wea. Rev., 109, pp. 784-812, 1981.
6. [6] M. Satoh, T. Matsuno, H. Tomita, H. Miura, T. Nasuno, and S. Iga, “Nonhydrostatic Icosahedral Atmospheric Model (NICAM) for global cloud resolving simulations,” J. Comp. Phys., 227, pp. 3486-3514, doi:10.1016/j.jcp.2007.02.006, 2008.
7. [7] R. A. Kerr, “Sharpening up models for a better view of the atmosphere,” Science, 313, p. 1040, doi:10.1126/ science.313.5790.1040, 2006.
8. [8] H. Miura, M. Satoh, H. Tomita, T. Nasuno, S. Iga, and A. T. Noda, “A short-duration global cloud-resolving simulation with a realistic land and sea distribution,” Geophys. Res. Lett., 34, L02804, doi:10.1029/2006GL027448, 2007.
9. [9] H. Miura, M. Satoh, T. Nasuno, A. T. Noda, and K. Oouchi, “An Madden-Julian Oscillation event realistically simulated by a global cloud-resolving model,” Science, 318, pp. 1763-1765, 2007.
10. [10] T. Inoue, M. Satoh, H. Miura, and B. Mapes, “Characteristics of cloud size of deep convection simulated by a global cloud resolving model,” J. Meteor. Soc. Japan, 2008, accepted.