热带气象学报2017，Vol.33Issue(3)：399-414,16.DOI:10.16032/j.issn.1004-4965.2017.03.011
不同云微物理方案对上海特大暴雨模拟影响的分析
ANALYSIS OF THE IMPACT OF DIFFERENT MICROPHYSICS PARAMETERIZATION SCHEMES IN SIMULATING HEAVY RAINFALL OVER SHANGHAI
摘要
Abstract
In order to study the impact of physics parameterization schemes in the WRF model on rainstorm simulations,two typical heavy rainfall events ("0825" and "0913") over Shanghai are simulated.The study was carried out with BMJ cumulus parameterization scheme and three physics parameterization schemes (Lin et al,WSM5 and WSM6 scheme) under three horizontal resolutions of 36 km,12 km and 4 km.The results indicated that all three physics schemes generally simulated the precipitation well,but they still differ in rainfall areas,rainfall center and intensity.By using the measured precipitation data of ground stations and the hourly rainfall grid data integrated from automatic stations and CMORPH,the paper analyzed the impact of different physics schemes on precipitation from the rainfall area,center and intensity,combined with K index,relative humidity,vertical velocity,vorticity,divergence and other physical diagnosis.Furthermore,the paper compared the difference among the three physics parameterization schemes,and explained the difference of the results by using the vertical profile of qsnow,qice and qgraupel.The results showed that the micro-physical WSM5 scheme can better simulate the rainfall area,but get heavier rain than the observation,and WSM6 can well simulate the rainfall intensity but drift a little in rainfall area,andthe simulated rainfall area of Lin has a drift.关键词
WRF模式/云微物理参数化方案/暴雨/上海Key words
WRF/physics parameterization schemes/heavy rainfall/Shanghai分类
天文与地球科学引用本文复制引用
阚煜,刘朝顺,乔枫雪,束炯,刘延安,丁杨..不同云微物理方案对上海特大暴雨模拟影响的分析[J].热带气象学报,2017,33(3):399-414,16.基金项目
上海市自然科学基金(17ZR1408600) （17ZR1408600）
上海市科委重点支撑项目(13231203804) （13231203804）
国家自然科学基金(41271055、40801145)共同资助 （41271055、40801145）
