摘要
空间信息网格能够联合地理上分布的多源数据中心,实现空间信息的有效共享与互操作。研究了空间信息服务节点的概念结构,分析了NWGISS(NASAHDFEOSWebGISSoftwareSuite)的组成结构和工作机理,基于NWGISS设计了遵循OGC规范的空间信息服务节点结构和原型系统,结合SIG系统需求建立了节点实例,实验结果表明建立的数据节点可以提供有效的空间信息服务。
The space information grid can integrate a huge volume of multi-source data from multiple data centers, and realize resource sharing and coordinating. The concept structure of space information services node was studied, the composition structure and work mechanism of NWGISS were analyzed, the structure and prototype system of the node based on NWGISS and OGC interface specification were designed. Experimental result indicates the data node can provide space information services effectively.
出处
《计算机应用》
CSCD
北大核心
2006年第5期1155-1157,共3页
journal of Computer Applications
基金
国家863计划资助项目(2003AA135118)
