基于网格的空间信息模型与服务技术研究  

Study on Grid-based Spatial Information Models and Services

作　　者：何小朝[1] 李琦[1] 承继成[1] 

机构地区：[1]北京大学遥感与地理信息系统研究所,北京100871

出　　处：《地理与地理信息科学》2003年第4期60-63,共4页Geography and Geo-Information Science

摘　　要：空间信息基础设施是实现数字城市的核心与基础,现有的万维网已经不能满足空间信息访问与处理的需要。该文对以空间信息为核心和基础的数据网格———空间信息网格的基础理论及网格中的空间信息模型与服务技术进行研究。提出了空间信息网格的若干关键技术及网格中的空间信息模型的特点与要求,并对空间信息网格服务进行了初步的探讨。Spatial Information Infrastructure is the core and basis for the realization of Digital City. Practices have proved that the current WWW network can't meet the requirements of Digital City's realization. This paper presents a study of the data grid based on spatial data, a basic theory of Spatial Information Grid (SIG), and the techniques of spatial information models and services in grid. Several key techniques about the Spatial Information Grid and the features and methods about the spatial information models in gird are also proposed. Furthermore, some initial ideas about spatial information grid-based services are presented.

关 键 词：空间信息模型 空间信息基础设施 数字城市 空间信息网格 空间信息服务 

分 类 号：P208[天文地球—地图制图学与地理信息工程]