THE SCHEME FOR THE DATABASE BUILDING AND UPDATING OF 1∶10 000 DIGITAL ELEVATION MODELS

查看全文 作　　者：ZHU Qing LI Zhilin GONG Jianya SUI Haigang

出　　处：《Geo-Spatial Information Science》索引2000年第3卷第2期,共7页

基　　金：theFOKYINGTUNEducationFoundation (No.71 0 1 7) 摘　　要：The National Bureau of Surveying and Mapping of China has planned to speed up the development of spatial data infrastructure (SDI) in the coming few years.This SDI consists of four types of digital products,i.e.,digital orthophotos,digital elevation models, digital line graphs and digital raster graphs.For the DEM,a scheme for the database building and updating of 1∶10 000 digital elevation models has been proposed and some experimental tests have also been accomplished.This paper describes the theoretical (and/or technical) background and reports some of the experimental results to support the scheme.Various aspects of the scheme such as accuracy,data sources,data sampling,spatial resolution,terrain modeling,data organization,etc are discussed. 关键词：geospatial data DEM photogrammetric sampling cartographic digitization SPECIFICATION

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THE SCHEME FOR THE DATABASE BUILDING AND UPDATING OF 1∶10 000 DIGITAL ELEVATION MODELS

参考文献(8)

引证文献(4)

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