基于多模式嵌套的高分辨率气象预报系统试验与检验

Experiment and examination of high-resolution weather prediction system based on the nested models

采用WRF与RAMS双模式,通过四层嵌套建立了渤黄海高分辨率气象预报系统,利用青岛站探空资料对系统在两次冷空气过境时刻预报输出的风向、风速、温度垂直剖面预报精度进行了检验,检验证明要素预报误差基本随预报时间的增长而增长,但幅度不大,总体而言预报系统具有较高的预报精度。

A high-resolution weather prediction system is established in the Bohai Sea and the Yellow Sea by using nested WRF and RAMS models. The WRF and RAMS models are both double-nested models. The accuracy of the prediction system such as wind direction, wind velocity and air temperature is examined by the sounding data from Qingdao Station. The examination shows that the prediction errors increase little with the extending time. In general, the prediction system has enough accuracy.