Relative-Coordinate Interpolating Method In Three-Dimensional Gridding Process of Weather Radar

摘要：

The data of weather radar observation is stored in polar-coordinates (elevation, azimuth, radial), and the distribution of radar data is not uniform in space. In order to get uniform grid-data, it needs to be interpolated. The groundwork of interpolation is the ray-trace calculating method. There are many interpolation methods. Some are based on the 4R/3 earth radius model, such as the Linear method, and the Adaptive Barnes Interpolating method;some are based on a modified version, and some are based on the real or simulated N profile of atmosphere (determined by T,P,e). In this paper, the Relative-CoordinateInterpolating Method is proposed, and other methods are shown mathematically in order to make a comparison, and the images following different arithmetic of radar data are also discussed. The relative-coordinate interpolating method is compared to the other arithmetic in this area.

关键词： Atmospheric radar Reflectivity Interpolation N profile Three-Dimensional Gridding Digital Image

作者: Li Zheng Deng Yong He Jian-xin Wu Rong

作者单位: Chengdu University of Information Technology, Chengdu, 610225, China China Meteorological Administration, Beijing, 100081, China Chengdu University of lnformation Technology, Chengdu, 610225, China

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 209-218

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）