华北东部强降水天气低层风场分型及降水落区

利用 1 992～ 2 0 0 1年 1～ 1 2月数值预报、天气图、卫星云图、渤海 4个测站及本区域 4个测站自记雨量、风向、风速等同步资料 ,对秦皇岛市出现的 1 8次暴雨、8次大雪天气过程进行综合对比分析 ,探讨了海区风向变化对降水落区的影响。通过 2 0 0 2～ 2 0 0 3年试报Ts值为 53%。

Low Level Wind Field Patterns of Heavy Rainfall in East of North China and Rainfall Area Forecst

Based on NWP, synoptic charts, satellite image and hourly self-record rain fall, wind data at 4 stations in Bohai Seand other 4 stations, from 1992 to 2001, the comprehensive comparison and analysis of 18 cases of heavy rain and 8 casesf heavy snow are made. The effect of wind on rainfall area is studied. From 2000 to 2003, the TS value is 53%.