摘要
本文利用多种资料对华北地区一次雷雨天气过程进行了分析,并采用WRF中尺度数值模式对本次过程进行了模拟,同时对不同的起报时间、不同的嵌套方式等进行了敏感性试验。结果表明:(1)WRF模式较好地模拟出了雷雨发生的形势场、水汽条件和能量条件;(2)起报时间和嵌套方式对形势场预报影响不大;(3)三层双向嵌套和两层双向嵌套相比,对于降水偏大的情况有明显的改善。
A variety of data is used in this paper to analyze a thunderstorm weather process in north China. WRF meso-scale numerical model is also used in this paper to simulate this process. Sensitivity test is employed aiming at different initial forecast time and different nesting methods. Conclusions are as follows: (1) WRF model can simulate the thunderstorm well and explain the atmospheric circulation situation, water vapor condition and energy condition. (2) Initial forecast time and different nesting method has little effect on atmospheric circulation field forecasting. (3) Three layers of two-way nesting can improve the phenomenon of lager precipitation.
出处
《中国民航飞行学院学报》
2017年第1期14-18,共5页
Journal of Civil Aviation Flight University of China
基金
民航局2016年安全能力建设基金资助项目
关键词
华北地区
雷雨
数值模拟
WRF模式
North China
Thunderstorm
Numerical simulation
WRF model