Analysis on A Heavy Rain to Rainstorm Weather Process in Liaoning Province  

辽宁一次大到暴雨天气过程分析(英文)

作　　者：李东[1] 许宁 韩蓓蓓[3] 

机构地区：[1]陕西省渭南市气象局,陕西渭南714000 [2]辽宁省海城市气象局,辽宁海城114200 [3]西北农林科技大学林学院,陕西杨凌712100

出　　处：《Meteorological and Environmental Research》2010年第9期25-28,共4页气象与环境研究（英文版）

摘　　要：By using the synoptic chart,the physical quantity field,the satellite cloud image and the meteorological elements in the single station,a typical heavy rain to rainstorm weather process which occurred in Liaoning during August 18-20 in 2009 was comprehensively analyzed.The results showed that this process was a weather process which was affected by the upper trough and the subtropical high.Baikal Lake split cold air and Hetao cold air shifted eastward and formed the vortex.The subtropical high extended westward,lifted northward,and the warm wet airflow in the edge cut in.The low-altitude jet stream accelerated the transportation of water vapor,and several active meso-scale convective cloud clusters which appeared in 588 line periphery in the right side of high-altitude jet stream outlet gradually merged with the westerlies system.It caused that the strong mixed precipitation process occurred.By using the synoptic chart,the physical quantity field,the satellite cloud image and the meteorological elements in the single station,a typical heavy rain to rainstorm weather process which occurred in Liaoning during August 18-20 in 2009 was comprehensively analyzed.The results showed that this process was a weather process which was affected by the upper trough and the subtropical high.Baikal Lake split cold air and Hetao cold air shifted eastward and formed the vortex.The subtropical high extended westward,lifted northward,and the warm wet airflow in the edge cut in.The low-altitude jet stream accelerated the transportation of water vapor,and several active meso-scale convective cloud clusters which appeared in 588 line periphery in the right side of high-altitude jet stream outlet gradually merged with the westerlies system.It caused that the strong mixed precipitation process occurred.

关 键 词：Heavy rain to rainstorm Physical quantity field Satellite cloud image Meteorological elements China 

分 类 号：P458.121.1[天文地球—大气科学及气象学]