Research on Radar Echo Extrapolation Technology Based on Optical Flow Method
The moving direction and affected area of radar echo were predicted based on DIS optical flow method,and the tracking accuracy was verified by measured radar echo products.This algorithm for combination extrapolation was to preprocess the radar combination reflectivity product echo,calculate its motion vector,then process the motion vector horizontally and vertically to obtain the final motion vector,and finally use the vector field to deduce the echo prediction product.The superiority of this method had been fully verified in case studies.This method can obtain more accurate and reliable extrapolation results,providing more reliable and timely reference for short-term warning.
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