NI 3D Coastal Survey: 2021 Airborne LiDAR Digital Surface Model

2021 airborne LiDAR data provides a precise and accurate Digital Surface Model of the Northern Ireland coastline. The survey captured the intertidal zone and extended approximately 200 meters landward of the high-water mark. This dataset represents the topographic surface, including buildings and vegetation, for the NI 3D Coastal Survey.

Use Cases

• Coastal erosion modeling based on precise surface elevation data
• Flood risk assessment for areas within 200 meters of the high-water mark
• Monitoring intertidal habitat change using the captured coastal morphology
• Planning coastal defense infrastructure using the 3D surface model

Strengths

• Data is from a complete, commissioned survey of the entire Northern Ireland coastline in 2021
• Provides precise and accurate data of current coastal morphology as explicitly stated
• Cross-platform presence on uk_data and eu_open_data signals importance and availability

Limitations

• Column names and specific data structure (e.g., point density, coordinate system) are not provided in any source
• Row count and file size are unknown across all platforms, limiting assessment of data volume
• One platform (eu_open_data) lacks any update or author information, creating a metadata conflict

Provenance

Source

OpenDataNI, commissioned as part of the NI 3D Coastal Survey

Collection Method

Airborne LiDAR survey

Time Range

2021

Freshness

2026-04-15 14:20:56.077621

Geography

Northern Ireland coastline, including intertidal area and ~200 meters landward