Analysis of Spectral Moment Features and Profiler Detection Accuracy of Wind Profiler Radar under Different Precipitation Intensity

The analysis of spectral moment features and profiler detection accuracy under different precipitation intensity are presented with a good consistency of vertical velocities observed by different beams and a small difference on UV measured by symmetric beams under conditions of drizzle(0-1 mm/h) and light rain(1.1-2.5 mm/h),giving a higher reliability of profilers' horizontal wind detection. However,a bad consistency of vertical velocities observed by different beams a big difference on UV measured by symmetric beams with a lower reliability of profilers' horizontal wind detection has been shown in conditions of moderate rain(2.6-8 mm/h) and heavy or torrential rain(>8 mm/h). The conclusion will provide the theoretical foundation to the subsequent work of data quality.