Chapter
Apr 26, 2012
Using Topographic LIDAR Data to Delineate the North Carolina Shoreline
Authors: Patrick W. Limber [email protected], Jeffrey H. List [email protected], Jeffrey D. Warren [email protected], Amy S. Farris [email protected], and Kathryn M. Weber [email protected]Author Affiliations
Publication: Coastal Sediments '07
Abstract
In North Carolina, shoreline change rates are an important component of the state's coastal management program. To enhance methods of measuring shoreline change, the NC Division of Coastal Management (DCM) is considering using mean high water (MHW) shorelines extracted from lidar data together with traditional wet/dry shorelines digitized from aerial photography. To test their compatibility, a wet/dry line and MHW shoreline derived from a concurrent 2004 oceanfront photography and lidar dataset were compared along a distance of 244 km. Results show that the MHW shoreline was seaward of the wet/dry shoreline by 2.82 m on average, and that this offset biased shoreline change rates by an average of 0.05 m/yr. The offset was greatest on low-sloping beaches experiencing higher water levels at the time of photography, but overall was small enough to suggest that the MHW shoreline can be a reliable substitute for the wet/dry shoreline.
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© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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North Carolina Division of Coastal Management, 1638 Mail Service Center, Raleigh, NC, 27699-1638. E-mail: [email protected]
United States Geological Survey, Woods Hole Science Center, 384 Woods Hole Rd., Woods Hole, MA, 02543. E-mail: [email protected]
North Carolina Division of Coastal Management, 1638 Mail Service Center, Raleigh, NC, 27699-1638. E-mail: [email protected]
United States Geological Suryey, Woods Hole Science Center, 384 Woods Hole Rd., Woods Hole, MA, 02543. E-mail: [email protected]
United States Geological Survey, Woods Hole Science Center, 384 Woods Hole Rd., Woods Hole, MA, 02543. E-mail: [email protected]
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