多普勒雷达速度图像中逆风区的统计特征分析

Analysis of Adverse Wind Region Features in Doppler Radar Velocity Image

多普勒雷达作为一种新型的探测工具。在临近预报，特别是暴雨、冰雹等强对流天气的预警等方面有非常重要的参考价值。而对于多普勒速度场中的逆风区深入研究，有助于识别和判断降水中心区或强对流回波的发展或消散。本文选取太原雷达站2003年～2005年3年的多普勒天气雷达资料进行了普查．重点针对多普勒径向速度场中的逆风区进行研究和统计分析，试图发现逆风区的结构特征、发展演变的规律以及与它们相对应的天气现象之间的关系，这对于发现冰雹云，科学有效地从理论上和技术上指导和改进人工消雹作业也有非常重要的意义。

As a new detection tool, Doppler radar can provide effective reference for nowcasting especially in early warning of severe convective weather such as rainstorm and hailstorm, etc. Through studying the Adverse Wind Regions（AWR） in Doppler radar velocity image, the informations of development and extinction of strong rainfall and echoes can be found. Using the Doppler radar data of Taiyuan station in 2003 - 2005, the features of AWR in velocity image are studied in this paper.