摘要
风场信息能够帮助了解大气内部流场状态,为了能够了解与分析一定高度平面上的风场,文中提出了在相邻观测时刻的速度场中垂直下落速度相同的假设条件下,通过分析高空水平风速与径向速度的关系,得到相邻方位角的相对风速计算公式,然后利用相邻3个时次的速度回波资料,通过交叉相关的原理计算以获得在不同高度层上的风场风向。最后给出了高空风场反演实例。
The information of wind field helps us to analyze the state of atmosphere. In order to analyze the wind field on different al- titude levels, a new method to retrieve the wind field is proposed in this paper. From the assumption that the velocity of falling down is uniform, the expression of wind speed is derived through analysis of the relationship between wind speed and radial speed of high altitude air field. By making use of velocity data of three neighboring observation times, the direction of wind field at high altitude air is obtained with the Tracking Radar Echoed by Correlation（TREC） method. At last, the retrieved wind field is presented.
出处
《现代雷达》
CSCD
北大核心
2009年第5期18-20,共3页
Modern Radar
基金
四川省重点实验室项目(2006ZD048)
