摘要
[目的]分析保定市2016年7月19—20日大暴雨过程。[方法]根据常规观测资料、NCEP1°×1°再分析资料、卫星云图和雷达资料、欧洲中心数值预报等资料,采用天气学和动力学等方法对2016年7月19—20日保定市大暴雨过程进行综合分析。[结果]本次暴雨过程分为两段,前期受低层偏东风和地形抬升作用影响,后期降水则是黄淮气旋影响;高层低值系统的发展加强,诱发地面气旋的形成;东南季风和西南季风是本次暴雨过程的主要水汽来源。[结论]本次暴雨过程为极端暴雨天气研究提供了很好的参考依据。
[ objective ] to analyze the heavy rain process in Baoding from July 19 to 20,2016. [ Methods ] According to the conventional observation data,the NCEP 1°×1° reanalysis data, satellite cloud images and radar data,the European center numerical forecast data, meteorological and dynamical methods were used to analyze comprehensively heavy rain process in Baoding from July 19 to 20,2016. [ Results ] The heavy rain case can be divided into two periods. The heavy rain was influenced by the low-level eastern wind and orographie lifting in the first period, while the Huanghuai cyclone was the dominant factor in the second period. The cyclone was triggered by the enhancement of high-level low pressure system. In addition, southeast and southwest monsoon brought the sufficient water moisture for this heavy rain process. [ Conclusion ] This process provides a good reference for the study of extreme rainstorm weather.
作者
董疆南
于雷
马鸿青
王志超
DONG Jiangnan;YU Lei;MA Hongqing;WANG Zhichao
出处
《山西科技》
2018年第6期134-138,共5页
Shanxi Science and Technology
关键词
华北暴雨
黄淮气旋
季风
急流
heavy rain in north China
Huanghuai cyclone
monsoon
low-level jet stream
