副热带高压影响场区天气研究  

The Impact of Subtropical High on the Weather on the Site

作　　者：江晓华[1] 党建涛[1] 张明 汪正林[1] 刘勋[1] 

机构地区：[1]西昌卫星发射中心,四川西昌615000 [2]成空气象处,四川成都610050

出　　处：《西昌学院学报（自然科学版）》2008年第2期72-76,共5页Journal of Xichang University(Natural Science Edition)

摘　　要：采用国家气候中心气候系统诊断预测室74环流指数研究了1950～2005年西太平洋副热带高压的变化规律,发现近50年来副热带高压有增强的趋势,总结了副热带高压影响西昌卫星发射场的影响时间、影响方式和影响程度,分析了副热带高压指数与场区降水的相关性,建立了基于副高指数的场区降水预报方程,建立了副热带高压影响场区天气模型,给出了每种类型的经典特征、关键区和预报着眼点,在发射任务中得到良好的应用。With the 74 circulation index in the system diagnose forecast room from the National Climate Center, this paper did some research on the law of the West Pacific subtropical high movements from 1950 to 2005, found that in the past 50 years subtropical high has been becoming stronger, summed up the impact time, approaches and degrees of subtropical high on Xichang satellite launch site, and analyzed the relativity between the precipitation on the site and the subtropical high index. Finally based on precipitation forecast equation of the STH index, the weather forecast model influenced by subtropics high was established. It involves in the classical features of each type, the key areas and forecast starting point, which has been well applied in the launch mission.

关 键 词：副热带高压 气候特征 相关分析 预报模型 

分 类 号：P467[天文地球—大气科学及气象学]