黄渤海登陆热带气旋活动的统计分析

Analysis of Climatic Characteristics on Activities of Tropical Cyclones Landing from the Yellow Sea or Bohai Sea

利用中国气象局整编的1949～2000年的热带气旋资料,分析了52年间在黄渤海沿岸登陆的热带气旋的年际和季节分布、强度、移向和移速、源地及变性等气候特征,揭示了此类气旋大部分强度较强并易发生陆上变性,变性后增强的气旋的维持时间较长等事实,并发现了其变性的高频地区位于黄海北部至中朝边境。

Using the tropical cyclone (TC) yearbook data from 1949 to 2000, the climatic characteristics of TC landing from the Yellow Sea or Bohai Sea are analyzed. They include the annual and seasonal distribution, evolution of intensity, tracks, genesis locations and extratropical transition (ET) of these TCs. Some facts of these TCs are almost intense, most of their ET processes occur in land and after ET the reintensified ones of them have longer maintaining periods than others. The region from north Yellow Sea to the boundary between China and North Korea as a location where these TCs' ET occurs most frequently is found.