Historical Shoreline Data for Glasgow, DE to Eastern Neck Island, MD

A high-resolution historical shoreline dataset for the coast from Glasgow, Delaware to north of Eastern Neck Island, Maryland. The data were automated from shoreline maps produced by NOAA and its predecessor agencies, based on imagery interpretation and field surveys. It uses the NGS C-COAST attribution scheme to standardize data for GIS use.

Use Cases

• Analyze coastal erosion or accretion rates based on historical shoreline positions.
• Create GIS base layers for coastal zone management based on the high-resolution shoreline.
• Validate or update modern nautical charts based on the standardized C-COAST attribution.
• Study long-term land-use change in coastal areas based on historical map interpretations.

Strengths

• Data is described as 'high-resolution' and 'accurate' for GIS use.
• Shoreline maps were produced by the authoritative NOAA National Ocean Service.
• Attribution follows the structured NGS C-COAST scheme for consistency.

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 limited to the specific Delaware-Maryland coast.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Automated from shoreline maps based on office interpretation of imagery and/or field surveys.

Time Range

Historical, but specific range is not provided.

Freshness

Last updated 2026-03-13 21:07:55.491228; freshness should be verified.

Geography

Shoreline from Glasgow, Delaware to north of Eastern Neck Island, Maryland.