| 基于Matlab平台的多普勒雷达强度资料三维可视化 |
| |
| 作者单位： | ;1.南京信息工程大学中国气象局气溶胶-云-降水重点开放实验室 |
| |
| 摘 要： | 多普勒天气雷达是天气预报与科研应用中监测小尺度天气重要的观测手段.本文以CINRAD-SA型多普勒天气雷达为例,简要介绍了雷达的工作原理及其基数据结构.通过Matlab平台实现天气雷达资料数据的读取,并选用8点插值法(EPI插值)和Cressman插值,实现了将雷达极坐标数据内插到笛卡尔坐标系的三维可视化显示,并且可获取空间内任一切面或剖面的雷达回波强度.对比显示结果发现:Cressman插值后的结果对三维整体呈现的更好,8点插值(EPI)对于平面细节的显示更突出.
|
| 关 键 词： | 多普勒雷达 三维可视化 8点插值 Cressman插值 |
3D Visualization of Doppler Radar Data Based on MATLAB Platform |
| |
| Institution: | ,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration,Nanjing University of Information Science & Technology |
| |
| Abstract: | On weather forecast and science research,Doppler weather radar has became one of the most important means on monitoring mesoscale weather systems.This paper takes the CINRAD-SA Doppler weather radar for example,which first briefly describes the radar's working principle and its base data structure,then utilize Matlab software programming to realize the reading and displaying function.Choose interpolation algorithm of EPI and Cressman to interpolate polar coordinates data to cartesian coordinate thus realizing the 3DVisualization of Doppler weather radar reflection data.The 3DVisualization has greater advantages in analyzing the space structure of radar echo and the 3Dslice provides a more comprehensive way for radar echo analysis.The combination of EPI and Cressman interpolation concludes:the Cressman interpolation has advantages in 3D structure of radar echo,while the EPI shows better in detail section. |
| |
| Keywords: | Doppler radar 3Dvisualization EPI Cressman interpolation |
| 本文献已被 CNKI 等数据库收录！ |
