Shoreline Data Rescue Project: High-Resolution Historical Shoreline of St. Lawrence River

A high-resolution historical shoreline dataset for the St. Lawrence River, automated for use as a geographic information system (GIS) data layer. The data were produced by the NOAA National Ocean Service and its predecessor agencies based on imagery interpretation and field surveys, using the NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)'. This resource is a member of the NOAA InPort catalog item 39808.

Use Cases

• Analyze historical shoreline change based on high-resolution GIS data layers.
• Model coastal erosion or accretion using derived shoreline maps.
• Integrate historical coastal data into modern GIS systems based on the C-COAST attribution scheme.
• Validate or supplement contemporary coastal surveys with historical reference data.

Strengths

• Data were automated to provide an accurate high-resolution historical shoreline.
• Derived from shoreline maps produced by the NOAA National Ocean Service and its predecessor agencies.
• Attribution conforms to the NGS-developed 'Coastal Cartographic Object Attribute Source Table (C-COAST)'.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• C-COAST is noted as not a recognized standard, though influenced by S-57.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce.

Collection Method

Based on office interpretation of imagery and/or field survey by NOAA National Ocean Service and predecessor agencies.

Time Range

Historical, but specific temporal coverage is not provided.

Freshness

Last updated 2026-03-13 21:03:20.898134; freshness should be verified.

Geography

St. Lawrence River.