摘要
利用常规观测、气象卫星、双偏振雷达、风廓线雷达、地基GPS水汽等资料对2020年6月25日河北中部一次特大冰雹天气过程进行分析,探讨多源观测资料在冰雹监测预警中的应用。结果表明:受华北冷涡的影响,上冷下暖的不稳定层结为强对流的发生提供了有利的环流背景。在地面辐合线与地形抬升的作用下,强对流云团迅速生成并发展。超长生命史的超级单体风暴导致了本次大面积降雹,风暴中的冰雹粒子与其他相态粒子的双偏振特征具有明显的区别,因此可以通过双偏振雷达识别冰雹粒子。多源观测资料的定量化融合分析能提供更加精确的数据信息,从而为冰雹天气的监测预警提供更多的参考价值。
To explore the application of multi-source observation data in hail monitoring and warning,the conventional sounding data,satellite meteorological data,dual polarization radar data,wind profile radar data,and ground-based GPS water vapor data were used to study a strong convective weather process in central Hebei on June 25,2020.It was found that the effect of the north China cold vortex produced a suitable circulation conditions for the emergence of severe convection.Strong convection weather occurred and developed rapidly under the action of the ground convergence line and topographic uplift.A super monomer with extended life cycle was the main mechanism triggering this large-scale hail.Dual polarization radar was capable of distinguishing between hail and other phase particles since hail was plainly distinct from other phase particles.The quantitative fusion analysis of multi-source observation data can provide more accurate data information,so as to provide more reference value for the monitoring and early warning of hail weather.
作者
武冰路
赵京波
纪策
黄浩杰
隆璘雪
WU Binglu;ZHAO Jingbo;JI Ce;HUANG Haojie;LONG Linxue(Hebei Sub-Center of CMATC,Baoding 071000,China;Cangzhou Meteorological Bureau,Cangzhou 061000,China;Langfang Meteorological Bureau,Langfang 065000,China;Hebei Meteorological Observatory,Shijiazhuang 050000,China)
出处
《沙漠与绿洲气象》
2023年第5期79-85,共7页
Desert and Oasis Meteorology
基金
中国气象局气象干部培训学院科研项目(2022CMATCQN11)。
关键词
多源观测资料
冰雹
双偏振雷达
风廓线雷达
定量化产品
multi source observation data
hail
dual polarization radar
wind profile radar
quantitative products
