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Designing thought,technical line and some theoretical issues on geospatial digital framework of China
Authors:Hu Peng  Hu Yuju  Yang Chuanyong  Wu Yanlan  Hu Hai
Institution:School of Resource and Environment Science , Wuhan University , Wuhan , China
Abstract:Based on the developing tendency of present China's basic GIS, this paper discusses the designing idea for scales of 1∶10 000, 1∶50 000, 1∶250 000 and 1∶1 000 000 pyramidlike multi-layer and multi-resolution of the basic GIS. A technical line for the construction of basic GIS of the whole country and various provinces for sustainable development is put forward. And some important theoretical GIS issues touched by the technical process are discussed.
Keywords:geospatial digital framework  geospatial analysis  digital image  digital elevation model  digital line map
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