NOAA Shoreline Data Rescue: Ashepoo River to Port Royal Island, South Carolina

NOAA National Ocean Service provides a high-resolution historical shoreline for the Ashepoo River to Port Royal Island, South Carolina, derived from office interpretation of imagery and field surveys. The data are automated for use as a GIS data layer and follow the NGS C-COAST attribution scheme, influenced by international hydrographic standards. This dataset was last updated on March 13, 2026.

Use Cases

• Coastal change analysis based on historical shoreline maps.
• GIS layer integration for coastal zone management based on high-resolution shoreline data.
• Validation of modern shoreline models based on historical survey and imagery interpretation.

Strengths

• Data are automated to provide an accurate high-resolution historical shoreline.
• Shoreline maps were produced by the NOAA National Ocean Service and its predecessor agencies.
• Attribution follows the NGS C-COAST scheme, influenced by international hydrographic standards.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data are derived from office interpretation, which may introduce subjectivity.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Derived from shoreline maps based on office interpretation of imagery and/or field survey.

Time Range

Historical coverage (specific range not provided).

Freshness

Last updated 2026-03-13 21:11:06.999556

Geography

Ashepoo River to Port Royal Island, South Carolina, North America