Vector Shoreline of American Samoa Islands Derived from 2001 IKONOS Imagery

A digital vector shoreline for six American Samoa islands was manually digitized from one-meter panchromatic IKONOS satellite imagery. The data was created in 2001 to support coral mapping and GIS projects for the Pacific Islands. It was produced by NOAA NCEI for the National Ocean Service.

Use Cases

• Coastal change detection based on high-resolution shoreline vectors.
• GIS analysis for marine spatial planning based on accurate shoreline data.
• Coral reef habitat mapping based on the associated project context.
• Validating or updating broader-scale shoreline datasets based on the one-meter source imagery.

Strengths

• Derived from high-resolution one-meter panchromatic satellite imagery.
• Manually digitized to provide accurate, up-to-date data for its time.
• Covers six specific islands: Tutuila, Ofu, Olosega, Rose, Swains, and Ta'u.

Limitations

• Last updated 2001-12-02 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

NOAA_NCEI

Collection Method

Manually digitized from purchased IKONOS satellite imagery.

Time Range

2001

Freshness

2001-12-02 00:00:00

Geography

American Samoa islands: Tutuila, Ofu, Olosega, Rose, Swains, and Ta'u.