安徽农业科学2016，Vol.44Issue(20)：180-183,4.
“7．18”山东暴雨过程分析III：WRF模式边界层参数化方案对物理量场的影响
Analysis of “7.18” Shandong Heavy Rainfall Process III：the Impact of WRF Model Boundary Layer Parameterization Scheme on Physical Quantity Field
谭伟才 1映方 2李启华3
作者信息
- 1. 75839部队，广东广州510510
- 2. 贵州省贵阳市气象局，贵州贵阳550001
- 3. 解放军理工大学，江苏南京211101
- 折叠
摘要
Abstract
Objective] The aim was to analyze effects of different boundary layer parameterization schemes on physical quantity field in the heavy rainfall process.[Method] Using WRF mode 3.4 version, sensitivity test was conducted on “7.18” Shandong heavy rainfall process, effects of different boundary layer parameterization schemes on vertical velocity field, water vapor flux divergence field, relative humidity, con-vective available potential energy and boundary layer height were analyzed.[ Result] The results showed that different boundary layer parame-terization schemes have a significant impact on spatial distribution of vertical velocity and the strength of rainstorm center, so the location and strength of rainstorm center change .The simulated water vapor flux divergence accords with the actual results on the horizontal distribution, but its center location, vertical distribution and strength have significant differences.The convective boundary layer height and effective poten-tial energy are different in models with boundary layer parameterization schemes, which directly relate to the difference of precipitation distri-bution.[ Conclusion] Different boundary layer parameterization schemes in WRF mode have significant influence on simulation results of vari-ous physical quantity field in rainstorm process, using appropriate boundary layer parameterization scheme can improve simulation results of physical quantity field significantly.关键词
暴雨/WRF模式/敏感性试验/边界层参数化方案/降水Key words
Rainstorm/WRF model/Sensitivity test/Boundary layer parameterization scheme/Precipitation分类
农业科技引用本文复制引用
谭伟才,映方,李启华..“7．18”山东暴雨过程分析III：WRF模式边界层参数化方案对物理量场的影响[J].安徽农业科学,2016,44(20):180-183,4.
