2016年7月19-20日济南暴雨过程分析
Analysis of Rainstorm Process in Ji'nan on July 19-20, 2016
刘新彦 1褚颖佳 2王华 1赵玉翠 1张悦1
作者信息
- 1. 山东省济阳县气象局,山东济阳 251400
- 2. 山东省济南市气象局,山东济南 250102
- 折叠
摘要
利用常规观测资料,从环流形势、物理量场和雷达资料等方面,对2016年7月19-20日发生在济南地区的暴雨天气过程进行综合分析,并对其数值预报进行了检验.结果表明,这是一次由低涡、切变线、低空急流和黄淮气旋共同作用产生的暴雨.暴雨过程发生在气旋暖区,为层状云和积状云混合云降水,降雨范围大、效率高;对流性的特征仅表现为短时强降水,雨量分布相对于单纯的积云降雨更均匀.数值模式对此次过程的强降雨时段的预报普遍较好,但由于预报的气旋路径较实况更偏东,造成降雨量级上大多偏大.
Abstract
According to the rainstorm weather process occurred in July 19-20, 2016 in Jinan area, using conventional observational data, the circulation situation, physical quantity fields and radar data were comprehensively analyzed, and numerical prediction was tested.The results showed that: the rainstorm was interaction of vortex, shear line, low jet flow and Huang-Huai cyclone.The rainstorm process occurred in the warm zone of the cyclone, which is mixed cloud precipitation of stratiform cloud and cumuliform cloud;The characteristics of convective only showed short-term strong precipitation, rainfall distribution was more uniform compared with cumulus precipitation.Numerical model for the prediction of heavy rain periods was generally good, but because of the forecast cyclone was more easterly, most of the precipitation forecast was too large.
关键词
暴雨/环流形势/物理量场/雷达资料Key words
Rainstorm/Circulation situation/Physical quantity field/Radar data引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
万方数据