铜鼓短时强降水极值统计及回波特征分析

Extreme value statistics and echo characteristics analysis of short-term heavy precipitation in Tonggu

为了做好铜鼓大暴雨天气的短时预报服务,文章使用2012—2021年铜鼓降水资料和江西雷达拼图资料,对铜鼓短时强降水(≥30 mm/h)天气进行极值统计和雷达回波特征分析。文章详细阐述了短时强降水的时空分布和天气背景,同时对短时强降水的回波形态以及4次局部回波特征进行了具体分析。所得结论为铜鼓大暴雨天气的短临预报提供了分析依据。

In order to do a good job in the short-term forecast service of Tonggu rainstorm weather, using the precipitation data of Tonggu from 2012 to 2021 and the radar puzzle data of Jiangxi province, the extreme value statistics and radar echo characteristics analysis of Tonggu short-term heavy precipitation(≥30 mm/h) weather are carried out.This paper describes the spatial and temporal distribution and weather background of short-term heavy precipitation in detail.At the same time, the echo form of short-term heavy precipitation and the characteristics of four local echoes are analyzed in detail.The conclusion provides an analytical basis for the short-term and imminent forecast of Tonggu heavy rainstorm weather.