摘要
Abstract
Applying the real-time data , digital forecast and physical-quantity product from Micaps , we carried out the thermo-dynamic diagnosis and analysis of the regional torrential rain and hail storm synoptic processes occurred on August 10th, 2013 in Linxia state.The results showed that the atmospheric circumfluence feature of this storm -hail precipitation process was the typical sample of “high in the east and low in the west”.In the earlier period of this process , the subtropical high stretched out in the west , lifted in the north, and was steady, but it advanced and retreated frequently , which caused the accumulation of colder air in the pe-riphery of the subtropical high .The subtropical high broke out when it retreated in the east , which promoted the energy release and led to the torrential rain process.The author comprehensively analyzed the “8· 10” torrential rain synoptic process, explored the structural characteristics of heavy precipitation synoptic system and the physical mechanism of its formation , and sought the physical quantities with indicative significance for forecast .关键词
暴雨/物理机制/天气动力学/湿位涡/诊断分析Key words
Torrential rain/Physical mechanism/Synoptic dynamics/Moist potential vorticity/Diagnosis and analysis分类
天文与地球科学
