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标题：GPS SURVEYS, DEMS AND SCANNED AERIAL PHOTOGRAPHS FOR GIS DATABASE CONSTRUCTION AND THEMATIC MAPPING OF GREAT SMOKY MOUNTAINS NATIONAL PARK
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作者：Roy Welch
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：2000
卷号：XXXIII Part B4 (/1-3)
页码：1181-1183
出版社：Copernicus Publications
摘要：Detailed vegetation mapping of the Great Smo ky Mountains National Park (GRSM) is being undertaken by the Center for Remote Sensing and Mapping Science (CRMS) at The University of Georgia in support of the All-Taxa Biodiversity Inventory (ATBI) survey. An accurate base map is needed to reference the massive data collection effort associated with the ATBI. For this reason, a combination of Global Positioning System (GPS) surveys, softcopy photogrammetry and geographic information system (GIS) procedures are being emplo yed to produce digital orthophotos and corrected interpretation overlays in the construction of a vegetation database for the National Park
关键词：DEM; GIS; GPS; Orthophoto; Softcop y Photogrammetry