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利用常规天气雷达探测风暴内部运动
A Method for Detection of the Airflow Within Storms with Conventional Weather Radar
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摘要: 本文论述了一种推断风暴内部运动的方法。该方法应用常规天气雷达探测得到的风暴反射率资料，根据风暴反射率模块在两次扫描中所处的空间位置，并运用相关模式识别技术来判断模块的位移，从而获得风暴回波的二维运动场，并由此推断风暴内气流的结构。使用该方法进行模拟试验并对1986年8月8日的风暴实例进行了计算。Abstract: A method for applying correlation pattern recognition to determine the displacement of reflectivity pattern between two scans in the radar reflectivity field is described. According to this method, two–dimensional velocity field of storm echo, and internal airflow of storm is obtained by conventional weather radar. Then, the reflectivity fields are computed by use of this method and compared with observed storm reflectivity fields.
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