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    Author(s): Greg C. LiknesGeoffrey R. HoldenMark D. NelsonRonald E. McRoberts
    Date: 2005
    Source: In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 99-103
    Publication Series: General Technical Report (GTR)
    Station: North Central Research Station
    PDF: View PDF  (439.2 KB)

    Description

    The USDA Forest Service Forest Inventory and Analysis (FIA) program is required to ensure the confidentiality of the geographic locations of plots. To accommodate user requests for data without releasing actual plot coordinates, FIA creates overlays of plot locations on various geospatial data, including satellite imagery. Methods for reporting pixel values associated with FIA plots that reduce the likelihood of inadvertent release of plot locations were tested. The number of plots that can be correctly located using only pixel values was reduced by perturbing image band values, averaging band values of neighboring pixels, and reducing the number of image bands.

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    Citation

    Liknes, Greg C.; Holden, Geoffrey R.; Nelson, Mark D.; McRoberts, Ronald E. 2005. Spatially Locating FIA Plots from Pixel Values. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 99-103

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