摘要
数字地球的产生及其技术体系的完善,为建立数字流域提供坚实的技术支撑。数字流域是以地理空间数据为基础,具有多维显示和表达流域状况的虚拟流域,是数字地球的重要组成部分。文章从探讨数字流域的概念入手,阐述了其组成与数据监测获取、传输网络、海量存储、流域模拟、可视化与虚拟现实等关键技术,并简要分析了数字流域的应用与前景。
With the digital earth notion coming into being and the development of the technology system, construction of digital watershed has more technic support. Digital watershed is a virtual watershed which can visualize real watershed status in multi_dimension by computer_based geographic spatial data. And it is an important part of digital earth. In the paper, the concept of watershed was expatiated firstly. Then, the frame, the key technics such as change inspecting and data getting, network, database and huge memory, watershed simulation, visualization and virtual reality, and the application of digital watershed were discussed and analyzed.
出处
《地域研究与开发》
CSSCI
2003年第6期49-51,共3页
Areal Research and Development
关键词
数字地球
数字流域
可视化
digital earth
digital watershed
visualization
