资料同化对一次华南暴雨影响的数值试验研究

Effect of Data Assimilation on a Numerical Simulation of a Heavy Rain in South China

摘要: 针对一次华南暴雨过程,采用WRF区域中尺度模式进行了控制试验和同化试验。利用WRF-3DVAR同化系统同化了常规探空和地面观测资料,分析了两种资料对初值场的影响,以及对降水和各物理量预报效果的影响。结果表明:同化能改进初始场,并

Abstract: In this paper,the control and assimilation experiments of WRF regional mesoscale model prediction are verified in the South China during a course of heavy rain.Based on the WRF-3DVAR system,the sounding data and