DelmarvaS_SVA_baseline.shp - Offshore baseline for the Delmarva South/Southern Virginia region generated to calculate shoreline change rates from Wallops Island, Virginia to the Virginia/North Carolina border.

• Main Author: U.S. Geological Survey
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2010
• Subjects: Baseline; Shoreline Change Rate; Linear Regression Rate; Endpoint Rate; Digital Shoreline Analysis System; DSAS; U.S. Geological Survey; USGS; Coastal and Marine Geology Program; CMGP; Woods Hole Coastal and Marine Science Center; WHCMSC; National Assessment of Shoreline Change Project; oceans; oceans and estuaries; oceans and coastal; environment; geoscientificInformation; Atlantic Coast; United States; Mid-Atlantic; Delmarva; Virginia; Wallops Island; Assawoman Island; Metompkin Island; Cedar Island; Parramore Island; Hog Island; Cobb Island; Wreck Island; Ship Shoal Island; Myrtle Island; Smith Island; Fishermans Island; Cape Henry; Virginia Beach; False Cape; Ship Shoal; Alaska
• Online Access: https://search.dataone.org/view/df14f6b5-4679-40ed-8fcf-0cde55c93a68

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.