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《Editorial Board of Geomatics and Information Science of Wuhan University》 2005-05
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Research on Urban Grid System and Geocodes

LI Qi 1 LUO Zhiqing 1 HAO Li 2 AN Zhenzhen 3 (1 Institute of Remote Sensing and GIS, Peking University, 5 Yiheyuan Road, Beijing 100871, China)(2 Information Centre of Ministry of Construction P.R. China, 9 Sanlihe Road, Beijing 100835, China)(3 Chinese Academy of Surveying and Mapping, 16 Beitaiping Road, Beijing 100039, China)  
Grid and geocodes are dual. Grid is the dimension that geocodes represent, and geocodes are geographic identifiers of grid cell. Starting off with the definition of the grid, This paper discussed the characteristics of regulate and irregulate grid, focused on composition of multi-scale irregular grid, and pointed out that cadastry is a basic cell of urban flat surface and can make up other professional grid so that spatial information can be synthesized and shared. At length, this paper anlalysed and probed into the standard of geocodes based on irregular grids.
【Fund】: 国家863计划资助项目(2002AA134030);; 国家科技部基础性工作专项基金资助项目(2002DEA30026)
【CateGory Index】: P208
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