兰州新一代天气雷达降水估计的误差来源

兰州新一代天气雷达(C波段)，采用了目前世界上先进的雷达、多普勒、计算机，微电子技术等科技成果，具备了全天候的探测能力和丰富的雷达产品．增强了对兰州及其周边地区中小尺度天气系统的探测及预报能力^Il]。文中介绍了雷达估计降水原理，并从雷达估计降水原理和外界物理条件方面分析兰州新一代天气雷达对兰州及周边地区降水估计的误差来源。

The Error Source of Rain Estimation For Lanzhou New Generation Weather Radar

The Lanzhou new generation weather radar(c wave band) which used the advanced technology achievements such as radar,doppler,computer and micro electric technique in the world has the capable of explorations ability of the whole day and strengthened the ability of explorations and forecast to the middle and small scale weather system in Lanzhou and the nearby areas. This paper described the principle of rain estimation by radar.Based on the rain principle of radar estimation and the aspects of outside physical conditions, the error source of rain estimation in Lanzhou and the nearby areas is also analyzed.