NOAA Shoreline Mapping: Monhegan Island, Maine Vector Data

NOAA's National Geodetic Survey provides a high-resolution vector shoreline for Monhegan Island, Maine, compiled from imagery. The data includes line and point shapefiles attributed using the Coastal Cartographic Object Attribute Source Table (C-COAST) scheme. This resource is part of the NOAA Shoreline Mapping Program and was last updated in March 2026.

Use Cases

• Coastal change analysis based on high-resolution shoreline vectors.
• GIS layer creation for coastal zone management based on the described shapefiles.
• Integration with hydrographic data based on the C-COAST attribution scheme influenced by S-57 standards.

Strengths

• Data is described as 'accurate high-resolution shoreline' compiled from imagery.
• Attribution follows the structured C-COAST scheme for consistency.
• Data is part of a formal NOAA program, suggesting institutional oversight.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to a single island location.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Office interpretation of imagery, compiled into vector shapefiles.

Freshness

Last updated 2026-03-13 21:32:28.100745

Geography

Monhegan Island, Maine, USA