中国首个城市多功能ＧＰＳ (全球卫星定位系统 )网———上海地区综合ＧＰＳ服务网已被应用于气象服务。借助它 ,气象部门可准确判断未来数小时甚至半小时内的天气变化。这在我国尚属首次。　　据报道 ,目前气象上获取水汽资料主要依赖常规的探空站网 (高空探测气球 )。由于费 China’s first city multi-function GPS (Global Positioning System) network --- Shanghai integrated GPS service network has been applied to meteorological services. With it, the weather department can accurately determine the weather changes in the next few hours or even half an hour. This is the first time in our country. According to reports, the current meteorological access to water vapor data relies mainly on the conventional sounding station network (aerial exploration balloon). Due to fees