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Global cloud‐system‐resolving model NICAM successfully simulated the lifecycles of two real tropical cyclones
Author(s) -
Fudeyasu Hironori,
Wang Yuqing,
Satoh Masaki,
Nasuno Tomoe,
Miura Hiroaki,
Yanase Wataru
Publication year - 2008
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2008gl036003
Subject(s) - tropical cyclone , climatology , mesoscale meteorology , predictability , madden–julian oscillation , cyclone (programming language) , meteorology , atmospheric model , environmental science , cyclogenesis , tropical cyclone forecast model , african easterly jet , numerical weather prediction , geology , tropical wave , computer science , geography , convection , physics , quantum mechanics , field programmable gate array , computer hardware
The increasing capability of high‐end computers allows numerical simulations with horizontal resolutions high enough to resolve cloud systems in a global model. In this paper, initial results from the global Nonhydrostatic ICosahedral Atmospheric Model (NICAM) are highlighted to demonstrate the beginning of a potentially new era for weather and climate predictions with global cloud‐system‐resolving models. The NICAM simulation with a horizontal resolution of about 7 km successfully reproduced the lifecycles of two real tropical cyclones that formed in Indian Ocean in the austral summer 2006. Initialized with the atmospheric conditions 1‐2 weeks before the cyclones genesis, the model captured reasonably not only the timing of the observed cyclone geneses but also their motions and mesoscale structures. The model provides a high temporal/spatial resolution dataset for detailed studies of mesoscale aspects of tropical cyclone genesis. These promising results suggest the predictability of tropical cyclones by high‐resolution global cloud‐system‐resolving models.