Shoreline Data Rescue Project: Historical Shoreline of Cape Henlopen, Delaware

NOAA National Ocean Service automated shoreline maps to create a high-resolution historical GIS data layer for Cape Henlopen, Delaware. The data are derived from office interpretation of imagery and field surveys, attributed using the NGS-developed C-COAST scheme to align with international hydrographic standards. This resource is part of a larger NOAA data collection, last updated in March 2026.

Use Cases

• Analyze historical shoreline change based on high-resolution automated shoreline data.
• Create coastal base maps for GIS applications based on the derived shoreline data layer.
• Translate shoreline attribution for hydrographic chart production based on the C-COAST scheme influenced by S-57 standards.

Strengths

• Data are automated to provide an accurate high-resolution historical shoreline.
• Attribution uses the NGS-developed C-COAST scheme, designed for compatibility with international standards.
• Data source is the authoritative NOAA National Ocean Service and its predecessor agencies.

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 are available only in PDF and HTML formats, which may require conversion for GIS use.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Derived from shoreline maps produced by NOAA National Ocean Service based on office interpretation of imagery and/or field survey.

Time Range

Historical (specific range not stated)

Freshness

Last updated 2026-03 13 21:08:46.829662; freshness should be verified.

Geography

Cape Henlopen, Delaware, North America