GPS Shorelines
 

GPS shorelines are grouped by years.  Shorelines represent the HWL (high water line) surveyed using GPS units in kinematical mode.  Accuracy of shoreline location is generally better than 5 meters.  For a discussion of accuracies please see Coastal GPS Accuracies and Hutchins and Oivanki.  Each year's coverage varies; to view the extent of coverage use the quick view link. 

GPS Shorelines

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Last modified: 09/01/04