Accuracy Assessment of Topographic versus GIS Stream Mapping Methods: A Case Study of the Pike River In Southeastern Wisconsin
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SubjectsAccuracy Assessment; Topographic Map; GIS; GPS; Stream Mapping; Pike River; Southeastern Wisconsin; DEM
Streams are an abundant hydrological resource found throughout the world. The accurate mapping of stream location is not a simple task, and previous methods are being replaced by modern technology. Streams were mapped topographically throughout much of history. New technological advancements such as GIS (Geographic Information Systems), are improving the accuracy to which streams can be mapped. Using a DEM (Digital Elevation Model), stream networks can be delineated within a GIS and can place streams in more accurate locations relative to their true geographic location in the natural world. Ultimately, more accurate and comprehensive survey maps can be produced because of the high accuracy at which streams are mapped within GIS.
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