Internet GIS for distributing massive geospatial data

	Internet GIS for distributing massive geospatial data
	Song Guanfu; Zhong Ershun
	2006
英文摘要	Timely and accurate spatial data has been regularly available in many fields such as land cover and land use, urban planning, etc. Internet GIS is the technology to distribute massive geospatial data composed of aerial, satellite, and topographic images which is stored in RDBMS such as Oracle or SQL Server. Internet GIS is predominantly designed under a 'thin-client/fat-server' pattern. The pure thin-client technique provides the ability to access large geospatial database via the Internet by graphical web browser without any plug-ins. Server-side's overload because of frequently geospatial data access and geocomputing process is the bottleneck. Some key techniques, such as image-tower compression, multi-factorial dynamic load-balancing and multi-level caching, are elaborately designed to overcome the disadvantages in the paper. A Multi-tier architecture of Internet GIS based on the techniques is designed to adapt adequately over low-speed (28.8kbps) network.
出处	Gaojishu Tongxin/Chinese High Technology Letters
卷	16 期:3 页:286-289
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24337]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Song Guanfu,Zhong Ershun. Internet GIS for distributing massive geospatial data. 2006.