辽西地区冰雹灾害分布特征及其雷达指标研究

Study on the Distribution Characteristics and Radar Indexes of Hail Disaster in Western Liaoning

本文对2011—2019年发生在朝阳地区的40次冰雹灾害天气过程进行分析,得出朝阳地区冰雹灾害空间分布规律,结果表明:建平县为朝阳地区冰雹灾害易发区。建平县境内群山起伏的地形特征为强对流发生发展提供了触发条件,有利地形因素导致建平县极易出现冰雹灾害。此外,结合新一代多普勒天气雷达产品,归纳得出朝阳地区冰雹灾害雷达指标,为今后朝阳地区冰雹天气短临预警提供参考依据。

This paper analyzes the weather process of 40 hail disasters in Chaoyang area from 2011 to 2019,and obtains the spatial Distribution Law of Hail disasters in Chaoyang area.The results show that Jianping County is prone to hail disaster in Chaoyang area.The Rolling Topography of Mountains in Jianping County provides a trigger for the occurrence and development of strong convection,and favorable topographic factors make Jianping County prone to hail disaster.In addition,combining with the new generation doppler weather radar products,the radar indexes of Hail disaster in Chaoyang area are summarized in this paper,which can provide reference for short-term warning of Hail weather in Chaoyang area.