Simulation of Typhoon’s Anomalous Track(Ⅰ)——Rankine Vortex Model
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摘要: 本文提出一个用Rankine涡模型模拟对称和非对称台风的方法.考虑到台风和Rankine涡之间物理性质的相似性,从定性上分析了这一方法的可行性.参照Yancy台风的观测数据,给出模拟某一时刻台风内部结构的Rankine涡模型的涡参数.这一结果是进一步用等值线动力学方法研究台风运动的基础.Abstract: This paper proposes a method for simulating symmetric and asymmetric typhoon by using Rankine vortex model.Considering similarity between tropical cyclone and the Rankine vortex,the paper has qualitatively discussed the feasilility of the methods.In order to decide quantitatively Rankine vortex's parameters to simulate typhoon's structure,the paper has dealt with TCM data for Yancy Typhoon(9012) as initial fields.These results are considered as a foundation for further studying typhoon motion by CD approach.
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Key words:
- typhoon /
- Rankine vortex /
- least square method
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