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Article Excerpt Historically, GIScience involved, and still includes, the traditional mapping science disciplines of surveying, aerial photographic interpretation, photogrammetry, remote sensing, and cartography. Today it also includes a broader scope of issues related to the modeling and representation of geographic data, phenomena, and processes; the design and development of digital spatial databases; human cognition of geographic information; the analysis and use of uncertainty; spatial analysis and modeling, including GIS; scale; geographic ontologies; visualization; web mapping, and similar topics. Created to revitalize U.S. Geological Survey's (USGS) activities in GIScience research, the USGS Center of Excellence for Geospatial Information Science (CEGIS) is tasked to conduct, lead, and...
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