Virginia Institute of Marine Science
Special report in Applied Marine Science and Ocean Engineering No. 432
The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. The three tiered shoreline assessment approach divides the shorezone into three regions:
1 ) the immediate riparian zone, evaluated for land use; 2 ) the bank, evaluated for height, stability, cover and natural protection; and 3 ) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. GPS registered videography was used to collect data on conditions observed in the field.
Three GIS shapefiles are developed from the GPS field files. The first describes land use and bank conditions (Henrico_lubc). The second reports shoreline structures that are collected as arcs or lines (Henrico_sstru). The final shapefile includes all structures that are represented as points (Henrico_astru).
The shapefiles use a shoreline basemap generated in-house from the Virginia Base Mapping Program's high resolution digital terrain model from 2011. The shoreline is re-coded to reflect features and attributes observed in the field. The metadata file accompanies the shapefiles and defines attribute accuracy, data development, and any use restrictions that pertain to data.
Shoreline Inventories, Virginia, GIS, Management, Data
This project was funded in part by the Virginia Coastal Zone Management Program at the Department of Environmental Quality through Grant # NA11NOS4190122 of the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, under the Coastal Zone Management Act of 1972, as amended.
Berman, M.R., Berquist, H., Killeen, S., Hershner, C., Nunez, K., Reay, K., Rudnicky, T., and D. Schatt, 2012. Henrico County - Shoreline Inventory Report, Comprehensive Coastal Inventory Program, Special report in Applied Marine Science and Ocean Engineering No. 432 of the Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, Virginia, 23062