灾害学2017，Vol.32Issue(3)：191-196,215,7.DOI:10.3969/j.issn.1000-811X.2017.03.032
区域性暴雨的数值模拟和诊断分析的对比研究——以北京2012年7月21日暴雨为例
Numerical Simulation and Diagnostic Analysis on a Rainstorm in Beijing 7 · 21 Rainfall Case
摘要
Abstract
On 21 July 2012,Beijing suffered a severe rainstorm I,which caused serious damage to the local people's lives and properties.The high resolution model WRF (Weather Research and Forecast) developed by NCAR is widely used to simulate the extreme precipitation process.In addition to that,the outputs of WRF can well represent the physical mechanism of the severe rainstorm.Therefore,WRF is employed in this paper to simulate the 7 · 21 severe rainfall in Beijing,and the main results as follows:1) WRF model can well locate the heavy rain fall area,and simulate the cumulative rainfall of 24-hour rainstorm evolution;2) The general circulation of atmosphere of the rainstorm process is a typical circulation situation in north China,and the rainstorm process is mainly caused by low-level mesoscale systems,while rain fall area and intensity is determined by the mesoscale system along with the movement of time.关键词
区域性暴雨/WRF/诊断分析/数值模拟/对比分析/北京“7·21”暴雨Key words
regional rainstorm/diagnostic analysis/WRF numerical simulation/regional comparison/Beijing 7 · 21 heavy rainfall分类
资源环境引用本文复制引用
张杰,彭丽霞,史培军..区域性暴雨的数值模拟和诊断分析的对比研究——以北京2012年7月21日暴雨为例[J].灾害学,2017,32(3):191-196,215,7.基金项目
国家自然科学基金创新研究群体资助项目(41321001) （41321001）
