Historical Shoreline Data for the Delaware River, Northeast of Philadelphia

NOAA's high-resolution historical shoreline data for the Delaware River, derived from maps produced by the National Ocean Service. These automated data are suitable as a GIS layer and use the C-COAST attribution scheme influenced by international hydrographic standards. The dataset is a member of a larger NOAA resource collection.

Use Cases

• Modeling shoreline change over time based on the historical maps mentioned in the description
• Creating GIS base layers for coastal zone management based on the high-resolution data
• Validating modern shoreline datasets against historical interpretations
• Studying coastal geomorphology using the attributed shoreline features

Strengths

• Data is described as high-resolution and accurate for GIS use
• Derived from shoreline maps produced by NOAA's National Ocean Service
• Uses a structured attribution scheme (C-COAST) influenced by international standards

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
• Available file formats are PDF and HTML, which may not be ideal for direct geospatial analysis

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Derived from shoreline maps produced by NOAA based on office interpretation of imagery and/or field surveys.

Time Range

Historical, but specific temporal coverage is not provided.

Freshness

Last updated 2026-03-13 22:13:29.267512; freshness should be verified

Geography

Delaware River, Northeast of Philadelphia, Pennsylvania, USA.