近百年西北太平洋台风活动的初步分析

本文使用建立在北京气象中心FACOM M—360R上的台风自动分析预报及图象系统,对1884年以来近百年西北太平洋台风进行分析与总结。主要结果如下。1.台风活动序列可划分为8个阶段。它们是:相对宁静期、低频期、第一次跃升期、第二次跃升期、稳定高频活动期、高频活动减弱期、第二次小高峰期和衰减期。2.讨论了台风从海上深入内陆的运动规律及登陆运动特征的季节变化。3.给出1884年以来近百年台风在我国沿海30个站点登陆影响的基本数据。4.讨论了西北太平洋各区域中台风最大强度分布及其季节变化。

A PRIMARY STUDY ON TYPHOON ACTIVITY IN NORTHWESTERN PACIFIC FOR THE LATEST HUNDRED YEARS

A sumary study on typhoon activity in the northwestern pacific for the latest hundred years has been made by using an Automatic Typhoon Data Retrieval and pictorial Output System which built up at FACOMM-360R computer in Beijing MeteorologicalCenter. The results are as follows.1 The 8 stages for typhoon activities could be seen in an anuual variations which are 1) quiet period, 2) low-frequency period, 3) the first leap period, 4) the second leap period,5)steady hignfrequency period, 6)decline period for high-frequency activity, 7) second little peak value period and 8) decline period.2 Seasonal changes for the movement characteristics of landfalling typhoon have been discussed.3 The data of iandfalling typhoon for 30 Chinese coast stations have been given.4 The distribution and seasonal change maximum intensity of W. N. Pacific typhoons in the different waters have been discussed.