摘要
对过去 2 2年 ( 1 982～ 2 0 0 3)间重庆市发生的中尺度强对流天气雷达资料进行分类统计 ,研究中尺度强对流天气过程及其天气雷达回波特征 ,寻找重庆市中尺度强对流天气的运动规律 ,建立天气雷达回波资料库 ,将中尺度强对流天气过程雷达回波资料 ,按天气类型分类研究 ,结果表明 :①重庆市中尺度强对流系统在时空分布上具有明显的不均匀性 ;②涡旋状回波是暴雨的显著特征 ;③冰雹回波以块状为主 ;④强雷雨大风回波的特征具有带状或弓型。
Based on the weather radar data of Chongqing Municipality from 1982 to 2003, a statistical analysis of the climatic characteristics of the radar echoes of the various types of the meso-scale severe convective weather, such as heavy rainfall, hail, thunderstorm. It shows that (1) the spatial-temporal distribution of the echoes of the events is uneven. (2) The vortex echo is the primary characteristic of the heavy rainfall events, which may be related to the terrain of the Sichuan Basin and the southwest vortex. (3) The hail echo is the main agglomeration. (4) The thunderstorm echo is characterized as striation and bow-shaped.
出处
《气象》
CSCD
北大核心
2005年第3期36-40,F002,共6页
Meteorological Monthly
基金
国家自然科学基金 (40 2 75 0 0 1)
重庆市科委课题 (2 0 0 1 6 897)资助
