一种飓风数值预报的初值化方法

A METHOD OF INITIAL VALUES OF HURRICANE NUMERICAL FORECAST

中文摘要:

      本文使用具有Gallelean变换和详细动量、热量垂直输送通量描述的飓风动力方程组,由切向风速得到垂直运动场、加热场等,结果表明了垂直运动场和加热场具有明显的螺旋雨带特征,温度场有暖心结构及其位势高度场具有深低压特征,这些特征和实际观测结果相吻合.这个方法为飓风数值预报初始场提供了可行的方法.用数值方法预报飓风的发生发展和路经及降水分布是飓风研究的一种主要方法.但是,对于数值预报飓风的初始场的确定仍是一个没有彻底解决的问题.

英文摘要:

      By using hurricane dynamic equations,which include Gallelean transformed system and detailed vertical fluxes of momentum and heal,vertical motion and heating fields and so on are constructed by tangential motion.It is found that there are spiral structure in vertical motion and heating fields,warm core in temperature field and depression in geopotential field.They agree with observation.This provides useful method for initial f field of hurricane numerical forecast.