期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1998
卷号：XXXII Part 4
出版社：Copernicus Publications
摘要：The role for Digital Elevation Models (DEMs) hasbeen expanding rapidly in recent years. Applicationsare increasing and encompass industries as diverse astelecommunications, forestry, municipal engineeringand precision agriculture to name only a few. Theaccuracy and detail required varies with application,and a number of technologies are able to provideDEMs appropriate to particular mapping scales. Todate, DEM availability, accuracy and price issueshave tended to be a disincentive for many users. Theproblem is evident on a global basis. However, evenin the well mapped areas of North America andEurope there is a desire from users for more detailover broader areas and at lower cost.
