摘要
本文用完全的ω方程,对一个北上热带气旋(8509号台风)的变性发展过程进行了诊断研究,并和与此台风前期路经及强度相似,但进入西风带后很快消失的8406号台风的诊断结果进行对比。结果表明:(1)在热带气旋阶段,积云对流加热和大尺度凝结加热是维持其垂直运动的主要因子;(2)温度平流是造成其变性发展的主要原因和先决条件;(3)积云对流加热亦有重要贡献,并对台风暴雨区的降水有明显的补充和加强作用。
In this paper, a northern-ward neutercance (8509) in its developing process was analysed using the full ω-equation. The result was compared with another typhoon (8406) whose early path and intensity were similar with 8509. The results show. (1) In the stage of tropical cyclone, the cumulus convective heating and large-scale latent heating are the main factors to maintain its vertical motion. (2) Temperature advection is the main cause and prior-condition to the reutercance. (3) cumulus convective heating also makes its important contribution to the reuter-cence, and has evident suppliment and strengthening effectness to the precipitation of typhoon rain area.
出处
《气象》
CSCD
北大核心
1991年第10期3-8,共6页
Meteorological Monthly
