摘要: |
本文利用六盘水市2012-2017年42个人工增雨防雹作业站点的降雹资料及雷达资料,对六盘水市冰雹时空分布特征、雷达回波特征等进行了综合分析。分析表明:六盘水市冰雹天气发生在3~8月,5月最多,7月和8月最少,主要分布在盘州市的南部、水城县的北部及中部和六枝特区的东北部;降雹前,60dBZ强回波中心高度超过5Km 且45dBZ回波顶高会出现跃增可作为该市冰雹预警的一个重要参考指标。 |
关键词: 冰雹分布;六盘水;指标 |
DOI: |
投稿时间:2018-06-29修订日期:2018-12-22 |
基金项目:2018年贵州省人工影响天气办公室自立科研项目 |
|
Study on spatial and temporal distribution characteristics and indexes of hailstorm warning in Liupanshui city |
Sun Chuandong,Chi Zaixiang,Liuguoqiang,Liuxiaoyan |
(Liupanshui Meteorological office,Guizhou Liupanshui,553001;Guizhou province weather modification office;Anshun meteorological bureau) |
Abstract: |
This paper made a comprehensive analysis of the temporal and spatial distribution characteristics of hailstones and radar echo features in liupanshui city by making use of the hail precipitation data of 42 artificial rain-increasing and hail prevention work stations in liupanshui city from 2012 to 2017. The analysis shows that the hailstorm weather in liupanshui city occurred from march to August, most in May, least in July and August, mainly distributed in the south of panzhou city, the north of shuicheng county, and the northeast of liuzhi special district. Before the hail fall, the height of the 45dBZ echo top will jump, and the height of the 60dBZ strong echo center is more than 5Km, which can be used as an important reference indicator for the hail warning in the city. |
Key words: Distribution of hail; Liupanshui; Indicators |