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Accuracy of community-based spatial data collection in a GIS

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https://ir.library.oregonstate.edu/concern/graduate_projects/4b29b6741

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  • Training high school students to conduct field mapping and data collection of wildlife habitat on public lands produces important data for local government geographic information systems and introduces students to the field of geography. However, the positional accuracy of the spatial data is important for use in a GIS, as inaccurate data can lead to erroneous results and legal issues. A field mapping manual was created which attempted to provide the methodology for accurate spatial data collection. The data collected by the students were assessed for positional accuracy, and the data were evaluated for potential use in a geographic information system. Although the collected spatial data have an rms error of 16.1 meters and do not meet the accepted standards, they still provide new and useful information for the local municipal GIS. Recommendations for improving the quality of the data include a revision of the field mapping manual, more precise tools, and an increased involvement of the students in the maintenance of the GIS database.
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  • File scanned at 300 ppi (Monochrome, 256 Grayscale) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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