An Open Model of Operational Product System for China Weather Radar

China Doppler weather radar (CINRAD) network consisting of 158 radars with S and C bands is being built. Radar meteorological products exploitation and data applications are getting more and more imminent and necessary with the development of CINRAD; meanwhile, NEXRAD open system plan is being implemented. So the CINRAD operational model and product system infrastructure are key and important issues.CINRAD characteristics and development requirements are analyzed, and an open model of operational application system and data distribution for CINRAD is presented. The CINRAD has 6 type radars with S and C band made by 3 factories, so it is needed that very good interfaces for different scan patterns, data formats, and excellent development and test environment for different algorithms, and integrative processing and display system for different wave bands and many kinds of observation data. CINARD has lots of users on weather forecast, weather modification, hydrometeorology and traffic management etc, so it is necessary that software update and continuous developments of algorithms, and it is required that open and distribution structures. In terms of China meteorological operation model and CINRAD status, it is advanced that distribution products operations model and base data transport scheme. And it is also designed that the intrastructure and operating mechanism of open product system for CINARD.The existing NEXRAD ORPG is an open and loosely-coupled system, it supports other systems and algorithms to be operating together by parallel interfaces, and the Linear-Buffer supports separate modules data communication, so that CINRAD Radar Product Generator (CRPG) is designed as a compatible system with ORPG. The OPRG, CRPG and their low-level interface libraries are encapsulated with a new control interface which connected by Radar Data Acquirement (RDA) and Meteorological Information Comprehensive Analysis and Process System (MICAPS). The open and distribution radar product scheme is helpful to other meteorological software systems of China.