中国数字海洋构建基准与关键技术

地理信息系统(GIS)以其空间数据管理、空间分析和图形图像产品制作能力的强大,在海洋领域展现了巨大的潜力。但由于地理信息系统发展于陆地应用,面对海洋特性,有诸多不足。为此,本文在分析海洋特征的基础上,以中国海岸线为基准,构建中国数字海洋的原型系统。重点讨论了数字海洋的问题和解决办法,分析了以海岸线为基准的数据组织与处理,并探讨了其结构体系与集成方式,逻辑运算与可视化方法。

Constructing Digital Sea of China with the Datum of Coastal Line

The wave of "Digital Earth" drives the related research, including those in the field of oceanography. With the development of capacity to acquire the marine spatial data with time serial, Geographical Information System shows its potential in Oceanography because its functions are powerful in spatial data management, spatial analysis and graph or image mapping. Based on the character of marine, a prototype of Digital Sea of China (PDSC) has been constructed with the datum of coastal line of China. With the foundation of PDSC, this paper emphasizes on the problems with their resolutions, which differ from other space digital fields, especially on the data organization and manipulation with the datum of coastal line, the structure of "Digital Sea" and the integration method, the logic computation and the visualization method.