Global GIS及其关键技术

¹北京大学遥感与GIS研究所,北京市海淀区颐和园路5号100871;²中国矿业大学(北京)测绘与土地科学系,北京市海淀区学院路丁11号,100083;³国家基础地理信息中心,北京市海淀区紫竹院百胜村1号,100044

基金项目: 国家自然科学基金资助项目(40471104,40471108)

详细信息

Global GIS and It's Key Technologies

¹Institute of RS&GIS,Peking University,5 Yiheyuan Road,Haidian District,Beijing 100871,China;²Department of Survey and Land Science,China University of Mining and Technology(Beijing;D11 Xueyuan Road,Beijing 100083,China;³National Geomatics Center of China,1 Baishengcun,Haidian District,Zizhuyuan,Beijing 100044,China

Funds: 国家自然科学基金资助项目(40471104,40471108)

摘要: Global GIS(全球性地理信息系统,GGIS)的研究近年来变得日益重要,基于对目前研究现状所做的分析和评述,指出了构建基于统一三维地心参考系并以地球椭球体模型为依托的多层次格网框架是GGIS研究的基础,并且在全球性多源多尺度空间数据集成、三维椭球面空间数据表达以及多层次格网编码与索引技术等方面均存在着一系列理论与技术问题有待解决,分析了这些问题的难点所在,并给出了一些参考性的解决方案。
- GlobalGIS /
- GIS /
- 球面格网 /
- 统一地心参考系
Abstract: The research works on Global GIS(GGIS) becomes prominent in recent years.The current research works are discussed,and constructing a multi-level grid framework is the basis of GGIS is put forward.This multi-level grid framework is based on a uniform 3D Earth reference system and rely on Earth ellipsoid model.A lot of academic and technical problems exist and need to be resolved in sides such as multi-resources and multi-levels global spatial data integration,data expression on 3D ellipsoid surface,multi-levels grid coding and index technologies.Further analysis on the difficulties of these problems,and some reference solutions are also given.
- global GIS /
- GIS /
- global grid /
- uniform 3D earth reference system