NOAA's National Geodetic Survey provides a high-resolution vector shoreline for Alamagan Island in the Northern Mariana Islands. The data is compiled from imagery and structured using the Coastal Cartographic Object Attribute Source Table (C-COAST) attribution scheme. The dataset was last updated on 2026-03 13.
Use Cases
- Coastal change analysis based on high-resolution shoreline vectors.
- GIS data layer integration for mapping based on the described shapefile format.
- Attribute schema translation for hydrographic standards based on the C-COAST attribution scheme.
- Remote sensing validation using the office-interpreted imagery mentioned in the description.
Strengths
- Data is described as 'accurate high-resolution shoreline'.
- Attribution follows a scheme influenced by the International Hydrographic Organization's S-57 standard.
- Last updated on 2026-03-13, indicating recent maintenance.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
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 22:01:08.399239.
- Geography
- Alamagan Island, Northern Mariana Islands, Pacific Ocean