摘要
利用Micaps系统提供的降水实况和PUP提供的雷达产品资料,对辽宁省朝阳地区2016年8月6—7日发生的一场中到大雨、局部暴雨天气过程进行分析。结果表明,该次降水过程较为典型,以两脊一槽为大的环流背景,700 hpa稳定维持一冷式切变,地面北部有一低压系统,存在抬升触发条件;同时配有源源不断的西南暖湿气流补充水汽能量以及高层正涡度场不断向内输送传导,导致低空低值系统发展增强。
The process of a local heavy rainfall event with heavy-hard rain from August 6 to August 7 2016 in Chaoyang City of Liaoning Province was analyzed using the precipitation information provided by Micaps system and the radar product information provided by PUP.The results showed that this event was a typical rainfall process: two-ridge and one-trough was its circulation background;a cold front shear steadily maintained at 700 hpa;a low pressure system was in northern area of ground;triggering condition for uplifting existed.Meanwhile,the vapor energy was continuously supplemented by southwest warm-wet air and the positive wind-stress curl continuously inwardly transmitted and conducted,resulting in the enhancement of low-pressure system development in low altitude.
作者
王优
桑林
郭佰汇
王晓霞
于芳健
WANG You SANG Lin GUO Bai-hui WANG Xiao-xia YU Fang-jian(Meteorological Bureau of Chaoyang City of Liaoning Province,Chaoyang 122000,China Meteorological Bureau of Chaoyang County of Liaoning Province,Chaoyang 122000 ,China)
出处
《畜牧与饲料科学》
2016年第10期55-57,共3页
Animal Husbandry and Feed Science
关键词
短时强降水
过程分析
朝阳市
short-term heavy rainfall
process analysis
Chaoyang City