Shoreline Mapping Program: Southern Tlevak and Kaigani Straits, Alaska

NOAA's National Geodetic Survey provides a high-resolution vector shoreline for Southern Tlevak and Kaigani Straits, Alaska, compiled from imagery. The data uses the C-COAST attribution scheme, influenced by the International Hydrographic Organization's S-57 standard for compatibility. This resource is part of a larger NOAA shoreline mapping collection.

Use Cases

• Coastal change analysis based on high-resolution shoreline vectors.
• GIS layer integration for regional mapping based on the described shapefile format.
• Attribute schema translation based on the C-COAST and S-57 influenced attribution.
• Shoreline feature extraction based on office interpretation of imagery.

Strengths

• Data is described as providing an accurate high-resolution shoreline.
• Attribution scheme is influenced by the International Hydrographic Organization's S-57 standard.
• Last metadata update is recorded as 2026-03-13.

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 the specific straits in Alaska.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Compiled from imagery via office interpretation.

Time Range

null

Freshness

Last updated 2026-03-13 21:04:24.205172

Geography

Southern Tlevak and Kaigani Straits, Alaska