Gateway National Recreation Area Shoreline Position Data, 2006-2024

Mean high-water shoreline positions for the Breezy Point unit of Gateway National Recreation Area, collected between Fall 2006 and Spring 2024. The data were assembled by the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. Shorelines were defined as the average position of the most recent high tide and recorded via GPS/GNSS at intervals of at least one position every 10 meters.

Use Cases

• Modeling coastal erosion rates based on repeated shoreline position surveys.
• Analyzing the impact of storms on beach morphology based on the high tide swash line data.
• Monitoring long-term shoreline change for conservation planning based on the 18-year temporal coverage.
• Calibrating remote sensing models of shoreline position with ground-truthed GPS data.

Strengths

• Contains shoreline features collected over an 18-year period from Fall 2006 to Spring 2024.
• GPS/GNSS data was recorded at a high spatial resolution, with at least one position every 10 meters.
• Surveys capture multiple shoreline types, including ocean, inlet, and bay shorelines depending on the survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Some surveys collected prior to 2003 lack FGDC-compliant metadata records.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Department of the Interior

Collection Method

Surveys collected by driving or walking along the high tide swash line with a GPS/GNSS receiver.

Time Range

Fall 2006 to Spring 2024

Freshness

Last updated 2026-03-04 01:33:42.902833; freshness should be verified.

Geography

Gateway National Recreation Area (GATE) Breezy Point unit, covering areas in New York and New Jersey.