%0 Journal Article
%T Digital Earth GRID<br>数字地球网格计算雏议
%A XUE Yong
%A WANG Jian-qin
%A GUO Hua-dong
%A <br>薛勇
%A 王剑秦
%A 郭华东
%J 遥感学报
%D 2004
%I 
%X Digital Earth will be a multi resolution, four dimensional virtual representation of our planet that enables a person to explore and interact with the vast amounts of natural and cultural information gathered about the Earth. It needs Interactive 3 D visualisation, display and navigation through immersed and non immersed environments; it also needs high performance computation to create derived information and model simulations on demand, storage and real time access to very large, multi resolution datasets, fusion of satellite imagery and other geo referenced data sources of diverse content, satellite and terrestrial broadband networks for high data rate transmission, interaction, and collaboration, standards and metadata for interoperability among and access to differing geo spatial databases are inevitable. Digital Earth concept becomes an international cooperative program instead of merely one country's initiative. So far, Grid technique is the best solution for Digital Earth. Digiatl Earth can only be done through the interaction of people, heterogeneous computing resources, information systems, and instruments, all of which are geographically and organizationally dispersed. Earth observation includes information acquisition, processing and applications. Information acquisition provides a vast amount of spatial adta for building the fabric resource infrastructure. Information processing means that spatial information processing middleware is used with distributed large, secure grid computing resources for real time processing of all kinds of spatial data. With the help of GIS, we are currently working on the development of core middleware for Earth observation data processing and applications. The results will be available soon.
%K digital earth
%K grid
%K virtual organization
%K spatial information grid
%K telegeoprocessing<br>数字地球
%K 网格计算
%K 虚拟组织
%K 空间信息网格
%K 远程通讯地学处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=32F4E2E68FCE64D0&yid=D0E58B75BFD8E51C&vid=5D311CA918CA9A03&iid=CA4FD0336C81A37A&sid=CFAC5CB624A41AFD&eid=6700D0D256586E73&journal_id=1007-4619&journal_name=遥感学报&referenced_num=8&reference_num=17