High-resolution vector shoreline data for Eastern St. Lawrence Island, Alaska, compiled from imagery by the National Oceanic and Atmospheric Administration. The data includes both line and point shapefiles, attributed using NOAA's Coastal Cartographic Object Attribute Source Table (C-COAST) scheme. This resource is part of a larger NOAA shoreline mapping program, with metadata last updated in March 2026.
Use Cases
- Coastal change analysis based on high-resolution shoreline vectors.
- GIS data layer integration for mapping projects based on the described shapefile formats.
- Cartographic standardization efforts based on the C-COAST attribution scheme influenced by S-57 standards.
- Environmental impact assessment for coastal regions based on the accurate shoreline delineation.
Strengths
- Data is described as 'accurate high-resolution shoreline' compiled from imagery.
- Includes both line and point vector shapefiles for GIS use.
- Attribution uses a structured scheme (C-COAST) designed for translation into international S-57 standards.
- Metadata was last updated on 2026-03 13.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Primary file formats listed are PDF and HTML, which may not be the native geospatial data formats.
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Office interpretation of imagery for shoreline compilation.
- Time Range
- null
- Freshness
- Last updated 2026-03-13 20:51:35.916915
- Geography
- Eastern St. Lawrence Island, Alaska, United States, North America