SLR Coastal Erosion (Line) - 0.5 Ft. Scenario

This inland extent is connected with the coastline (zero-elevation contour, mean sea level) to create polygons depicting erosion hazard zones. The projected shoreline change rate is the estimated long-term trend for the shoreline that is likely located somewhere within the hazard zone (unless the shoreline has high rates of historical advance). The exact location of a future shoreline, however, is not shown within an erosion hazard zone.

Prior versions of the erosion hazard polylines were transformed (reprojected) incorrectly into the NAD83(HARN) datum. This update, dated June, 2023 represents files correctly transformed into the NAD83(HARN) datum. Metadata was modified to describe the polyline layers and to reference the University of Hawaii School of Ocean and Earth Science Climate Research Collaborative (CRC) as the data source for the layers, replacing older references to the UH SOEST Coastal Geology Group.

This represents a subversion release: no modeling was performed to provide or change future hazard zone or line positions or extents. This product/data is funded in part by the Hawaii Office of Planning, Coastal Zone Management Program, pursuant to National Oceanic and Atmospheric Administration Award No. NA17NOS4190171, funded in part by the Coastal Zone Management Act of 1972, as amended, administered by the Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, United States Department of Commerce.

These data and related items of information have not been formally disseminated by NOAA, and do not represent any agency determination, view, or policy.