Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for southern North Carolina (NCsouth)

• Main Author: U.S. Geological Survey
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2017
• Subjects: lidar uncertainty; proxy-datum bias; high water line offsets; high water line uncertainty; Shoreline Change; Digital Shoreline Analysis System; DSAS; U.S. Geological Survey; USGS; Coastal and Marine Geology Program; CMGP; Woods Hole Coastal and Marine Science Center; National Assessment of Shoreline Change Project; National Oceanic and Atmospheric Administration; NOAA; Coastal Services Center; CSC; MHW; Mean High Water; HWL; High Water Line; Database IV format; oceans; environment; geoscientificInformation; North Carolina; NC; Shackleford Banks; Atlantic Beach; Bogue Banks; Browns Inlet; Carolina Beach; New River Inlet; Wrightsville Beach; Kure Beach; Topsail Island; Emerald Isle; Bald Head Island; Cape Fear; Atlantic Coast; United States; North America; Bald Head; Browns; Head Island; Alaska
• Online Access: https://search.dataone.org/view/953aec9c-cbc5-45da-8696-44cc586b9cbf

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.