安徽农业科学2012，Vol.40Issue(22)：11347-11349,11355,4.
广西中部一次特大暴雨过程雷达回波特征分析
Analysis on the Radar Echo' s Characteristics of a Severe Rainstorm in Central Guangxi
贾显锋 1温水荣 2朱明1
作者信息
- 1. 广西钦州市气象局,广西钦州535000
- 2. 广西柳州市气象局,广西柳州545001
- 折叠
摘要
Abstract
[Objective] The aim was to analyze radar echo characteristic of a heavy rainstorm in central Guangxi in 'June, 2010. [Method] U-sing conventional observations and automatic stations, Doppler radar and other data, a severe rainstorm in central of Guangxi which occurred on 31 May to 1 June 2010 was analyzed. The characteristics of weather radar data were analyzed to reveal the characteristics of radar echo during the heavy precipitation process. [Result] The heavy rainstorm had gone through many singular wind storms towards MCS variation. The existence of ultra-singular and "train effect" was the main reason of the heavy rainstorm. The results showed that during the heavy rainfall experienced an evolution process from multi-cell storm to MCS, and found that super cell and the "train effect" was the major reason which caused this torrential rain. The echo centroid of multi-cell storm stretching along its moving reverse order was the key factor which maintained the heavy rain. Analysis also found that the average echo intensity had a good relationship with rainfall. Strong echoes were in quasi-stationary state for a long time and was favorable heavy rain. In the diameter velocity diagram, mesoscale convergence line, the adverse wind regions and the mid-cyclone were the important basis to determine producing and keeping heavy rainfall- Radar wind profile can reflect the configuration of layers of wind conditions, and it was an effective tool to determine whether the trough was in transit or not. [ Conclusion] The study provided reference for the short-term and nowcasting report.关键词
特大暴雨/雷达回波/特征分析/广西中部Key words
Heavy rain, Radar echo, Characteristics analysis, Central Guangxi分类
农业科技引用本文复制引用
贾显锋,温水荣,朱明..广西中部一次特大暴雨过程雷达回波特征分析[J].安徽农业科学,2012,40(22):11347-11349,11355,4.
