基于消息调度的江西省天气雷达拼图技术方法

Technical Method of Jiangxi Weather Radar Mosaic Based on Message Scheduling

为提高多普勒天气雷达资料处理效率,基于消息中间件技术、数据缓存等技术,开展了雷达资料处理与组网拼图技术应用研究。采用RabbitMQ消息中间件,实现雷达资料质量控制、网格化处理、数据缓存等实时调度处理。采用多进程技术,实现雷达资料组网拼图和可视化绘制。在此基础上,构建分布式并行业务运行系统,对江西省8部多普勒天气雷达进行组网拼图处理,实时制作时空分辨率分别为6 min和0.01°的雷达拼图产品。基于消息的雷达拼图技术显著提高了数据处理时效,满足了天气监测预警等精细化气象业务服务需求。

In order to improve the efficiency of Doppler weather radar data processing,based on message middleware technology,data caching and other technologies,radar data processing and network mosaic technology methods were studied.The real-time scheduling processing such as radar data quality control,grid processing,and data caching was realized using RabbitMQ message middleware.Radar data network puzzle and visualization drawing were realized by the multi-process technology.On this basis,a distributed parallel business operation system was constructed to conduct network mosaic processing on 8 Doppler weather radars in Jiangxi province,and real-time production of radar mosaic products with temporal and spatial resolutions of 6 min and 0.01°respectively.The message-based radar network puzzle technology significantly improved the timeliness of data processing and met the needs of sophisticated meteorological services such as weather monitoring and early warning.