The scheme for the database building and updating of 1∶10 000 digital elevation models

Q. Zhu, Zhilin Li, J. Gong, H. Sui

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)19-25
Number of pages7
JournalGeo-spatial information science (地球空间信息科学学报)
Volume3
Issue number2
Publication statusPublished - 2000

Keywords

  • Geospatial data
  • DEM
  • Photogrammetric sampling
  • Cartographic digitization
  • Specification

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geography, Planning and Development

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