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Analysis on the Doppler Radar Echoes of a Strong Rain in Kezhou

Tang Zhi-jian

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Abstract

Based on the data of routine synoptic and CINRAD Doppler radar echo,we analyzed the heavy rainfall on May 10th,2009 in Kezhou.This precipitation process was mainly the regional mixed type with local strong convective rainfall.The reflectivity factor reflected the processes of occurrence,development and extinction of meso-scale and micro-scale weather system in peripheral cloud system and the vortex cloud system which impacted this precipitation process.The radial velocity reflected the existence of smaller scale system in vortex cloud system,and the vertical wind profile described the variation of wind direction and speed of the current in different layer.

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What this paper is about

Based on the data of routine synoptic and CINRAD Doppler radar echo,we analyzed the heavy rainfall on May 10th,2009 in Kezhou.This precipitation process was mainly the regional mixed type with local strong convective rainfall.The reflectivity factor reflected the processes of occurrence,development and extinction of meso-scale and micro-scale weather system in peripheral cloud system and the vortex cloud system which impacted this precipitation process.The radial velocity reflected the existence of smaller scale system in vortex cloud system,and the vertical wind profile described the variation of wind direction and speed of the current in different layer.

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Available abstract

Based on the data of routine synoptic and CINRAD Doppler radar echo,we analyzed the heavy rainfall on May 10th,2009 in Kezhou.This precipitation process was mainly the regional mixed type with local strong convective rainfall.The reflectivity factor reflected the processes of occurrence,development and extinction of meso-scale and micro-scale weather system in peripheral cloud system and the vortex cloud system which impacted this precipitation process.The radial velocity reflected the existence of smaller scale system in vortex cloud system,and the vertical wind profile described the variation of wind direction and speed of the current in different layer.

Key concepts: Doppler radar, Precipitation, Radar, Vortex, Meteorology, Doppler effect, Scale (ratio), Synoptic scale meteorology

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