现代农业科技Issue(22)：208-211,4.
一次飑线过程的数值模拟及诊断分析
Numerical Simulation and Diagnostic Analysis of a Squall Line Process
摘要
Abstract
Using regular observation data,weather satellites data,doppler radar data,NCEP/NCAR reanalysis data and the mesoscale model WRF to make the numerical simulation and diagnostic analysis on the strong squall line process,which occurred in Qingdao’s near sea area,in the early morning of August 10th,2013. The results showed that low-level jet with water vapor transport,right side of entrance region of upper-level jet stream with strong suction,and trigger of 850 hPa shear line,affect the formation of the squall line process.Vertical structure analysis of the squall line found that there was a strong divergence in upper-level,a strong convergence in low-level,descending dry current from the middle and upper of troposphere,which were the main cause of the formation of strong wind on the sea-level.The diagnostic analysis of pseudo-equivalent potential temperature and k-index found that there was a instability before severe convective weather occurred.Using the WRF model the process of the squall line process successfully simulated,which indicated that it could take advantage of regional mesoscale numerical weather prediction model to analysis the structure,the spatial and temporal distribution of severe convective weather systems.关键词
WRF中尺度模式/数值模拟/诊断分析/飑线过程Key words
mesoscale model WRF/numerical simulation/diagnostic analysis/squall line process分类
天文与地球科学引用本文复制引用
邢如峰,孙即霖,高山红..一次飑线过程的数值模拟及诊断分析[J].现代农业科技,2014,(22):208-211,4.基金项目
国家自然科学基金（41276012）；高等学校博士学科点专项科研基金（20110132110017）。 （）
