Historical Shoreline of Salem, Massachusetts for GIS

Salem, Massachusetts shoreline data automated to provide a high-resolution historical GIS layer. The data are derived from NOAA National Ocean Service shoreline maps based on imagery interpretation and field surveys. The resource uses the C-COAST attribution scheme influenced by the S-57 standard.

Use Cases

• Coastal change analysis based on historical shoreline maps
• GIS layer creation for coastal planning based on high-resolution shoreline data
• Data translation and standardization workflows based on the C-COAST attribution scheme

Strengths

• Data are described as high-resolution and accurate for GIS use.
• Derived from authoritative NOAA National Ocean Service shoreline maps.
• Attribution uses a scheme influenced by the international S-57 standard.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data formats are PDF and HTML, which may require conversion for direct GIS use.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

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

Time Range

Historical, but specific range is not provided.

Freshness

Last updated 2026-03-13 21:46:07.158854; freshness should be verified.

Geography

Salem, Massachusetts, USA