多媒体通信技术在中国气象服务体系中的应用

基于多媒体通信技术，中国气象局构建了全国天气预报电视会商及电视会议系统。利用该系统为全国气象部门提供天气预报远程会商、行政电视电话会议、技术培训及技术交流等方面的服务功能。全国天气预报高清电视会商及电视会议系统是原有标清系统的重要升级，针对视频质量不高、系统稳定运行能力低下、组会能力不够灵活的现状，采用了先进的多媒体通信技术，建立了高清电视会商系统。介绍了的全国天气预报高清电视会商及电视会议系统结构、主要功能和关键技术，并与标清电视会商系统进行了比较。结果表明：高清电视会商系统技术领先，功能强大，是目前气象行业技术领先的视频会议系统。该系统是支撑现代气象业务体系的平台之一,在气象服务体系中具有极为重要的作用。

Application of multimedia communication technology to meteorological services in China

Multimedia communication technology, as an advanced technology, had been used to provide remote consultation, meetings, technical trainings and other meteorological services in China Meteorological Administration （CMA）. To meet requirements of high quality video transmission, stability of the system, and flexibility of confer- ence organization, a high-definition Weather Conference System （WCS）was established with the advanced multi- media communication technology. The structure of the national high-definition WCS, main function and key tech- nology were introduced. It was compared with the standard defmition WCS. The results show that the new system has the advanced technology and stronger function. It is one of the supporting platforms of modem meteorological operational system, and it plays a very important role in meteorological service.