3D Visualization of Doppler Radar Data Based on MATLAB Platform
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.
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 radars 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 3D Visualization of Doppler weather radar reflection data. The 3D Visualization has grea- ter advantages in analyzing the space structure of radar echo and the 3D slice 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.
作者:
管理 魏鸣 韦凯华 王金虎
机构地区:
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
出处:
《betway官方app 学报:自然科学版》 CAS 北大核心 2015年第3期43-48,共6页
基金:
国家重点基础研究发展计划973项目(2013CB430102) 江苏省高校自然科学重大基础研究项目(10KJA170030) 国家高技术研究发展计划863项目(2007AA061901 2012AA091801) 公益性行业(气象)科研专项(GYHY201206038 GYHY201306040) 灾害天气国家重点实验室开放课题(2013LASW-B16) 北极阁基金(BJG201208) 航空科学基金项目(201320R2001) 中国气象局2014年关键技术项目(CMAGJ2014M21) 水利部公益性行业科研专项(201201063)
关键词:
多普勒雷达 三维可视化 8点插值 Cressman插值
Doppler radar 3D visualization EPI Cressman interpolation
分类号:
P415.2 [天文地球—大气科学及气象学] O45 [理学—无线电物理]