Control Extension and Orthorectification Procedures for Compiling Vegetation Databases of National Parks in the Southeastern United States
نویسنده
چکیده
Vegetation mapping of national park units in the southeastern United States is being undertaken by the Center for Remote Sensing and Mapping Science at the University of Georgia. Because of the unique characteristics of the individual parks, including size, relief, number of photos and availability of ground control, different approaches are employed for converting vegetation polygons interpreted from large-scale color infrared aerial photographs and delineated on plastic overlays into accurately georeferenced GIS database layers. Using streamlined softcopy photogrammetry and aerotriangulation procedures, it is possible to differentially rectify overlays to compensate for relief displacements and create detailed vegetation maps that conform to defined mapping standards. This paper discusses the issues of ground control extension and orthorectification of photo overlays and describes the procedures employed in this project for building the vegetation GIS databases.
منابع مشابه
Vegetation Modeling, Analysis and Visualization in U.s. National Parks
Researchers at the Center for Remote Sensing and Mapping Science (CRMS) at The University of Georgia have worked with the U.S. Department of Interior National Park Service (NPS) over the past decade to create detailed vegetation databases for several National Parks and Historic Sites in the southeastern United States. The sizes of the parks under investigation vary from Everglades National Park...
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