Research on Spatial Consistency of Echo Intensity of New Generation Weather Radar

Abstract

Based on the CAPPI data of single grid point, this paper establishes the spatial consistency algorithm of adjacent radars, studies the spatial consistency of echo intensity on the equidistant line in the same observation area, and uses the radar data after strict quality control to study the horizontal consistency and vertical profile consistency of echo intensity on the equidistant line of adjacent radars, so as to verify the reliability of the spatial consistency algorithm. By analyzing the echo intensity of Zhoushan radar in Zhejiang Province, it is about 4dB lower than that of Hangzhou station and Ningbo Station, but the echo structure is relatively consistent. In order to realize the integration of spatial consistency algorithm on the national new generation weather radar business system, the national radar automatic matching program and contour plane automatic selection program are compiled, and the National Weather Radar spatial consistency evaluation standard is formulated, which makes it possible to evaluate the National Weather Radar Echo spatial consistency in real time. According to the trial operation effect of spatial consistency algorithm, it can detect the echo difference between adjacent radars in real time and efficiently, and give the evaluation results.