ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 44 Issue 8 > 2018,44(8):998-1008. DOI:10.7519/j.issn.1000-0526.2018.08.002 Prev Next
Characteristics and Simulation Analysis of Cloud Evolution of Typhoon Soudelor (2015)
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Abstract:
No.1513 Typhoon Soudelor is simulated by using the GRAPES_Meso model, and the spatiotemporal evolution of the cloud system during the three stages of typhoon generation, maturity and landfall is analyzed. The results show that: (1) The process of Typhoon Soudelor from generation, maturity to landfall, weakening and dissipation is reproduced well with both the track and the trend of typhoon intensity in the simulation, which are close to observation. (2) In the development stage, the typhoon eye is blurred. The overall distribution of typhoon cloud system is well simulated, but the height of cloud top is lower than observation. (3) In the mature stage, there is a clear funnelshaped eye in the center of “Soudelor” cloud system. Cloud develops more strongly and presents structure of concentric eyewalls in the west of typhoon. The height of the simulated cloud top is lower than the observation. (4) The intensity of “Soudelor” is weakened rapidly after landfall. The eye is no longer obvious. The ability of the model to represent the detailed structure of Typhoon “Soudelor” after landfall is poor. (5) In general, the whole range of the cloud system of “Soudelor” is well simulated by GRAPES_Meso model. The simulated results in the first two stages are better than that in the postlanding stage. In a word, improving the cloud amount scheme in GRAPES model might help simulate typhoon cloud system.
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