An optical flow method instead of the cross correlation method is proposed for convective precipitation system.
针对强对流降水的情况，提出了使用光流法计算得到的光流场来代替交叉相关法得到的运动矢量场。
Based on the Doppler radar data, a technique is described with the cross correlation method to heavy rainfall nowcast.
以天气雷达体积扫描的资料为基础，采用交叉相关法建立了一种对暴雨的临近预报方法。
Using Doppler radar data, an algorithm for precipitation nowcast is set up by applying an improved cross-correlation extrapolation method (COTREC).
利用多普勒雷达资料，采用一种改进后的交叉相关法(COTREC)建立了一种降水临近预报方法。
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