In this paper,based on dense observational data of squall line and its objective analysis data the Barnes filter,the twenty-five points filter,and the high-order high-pass implicit filter are used for mesoscale filtering experiment.

• 本文用Barnes带通滤波法、二十五点格式滤波法和高阶高通隐式滤波法，对含有地面辐合线和飑线的地面加密观测资料和客观分析资料进行了中尺度滤波试验。