Northern Ireland Coastal Orthophotography and LiDAR Survey, 2021

Orthophotography with 10cm resolution covers the entire Northern Ireland coastline, extending approximately 200 meters landward from the high water mark. This geometrically corrected aerial imagery was captured as part of the 2021 NI 3D Coastal Survey by OpenDataNI. The dataset includes topographic LiDAR and natural colour orthophotos, last updated in March 2026.

Use Cases

• Monitor coastal erosion and landform changes based on high-resolution orthophotography.
• Classify land cover and habitat types in the coastal zone using natural colour imagery.
• Create 3D terrain models for flood risk assessment by combining orthophotos with LiDAR data.
• Map the intertidal zone and shoreline features based on the described 200-meter landward coverage.

Strengths

• Imagery has a uniform scale and is free of distortion due to ortho-rectification.
• Provides 10cm resolution for detailed visual analysis of the coastline.
• Covers the entire Northern Ireland coastline, including the intertidal area.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

OpenDataNI

Collection Method

Aerial survey capturing topographic LiDAR and orthophotography.

Time Range

2021

Freshness

Last updated 2026-03-18 11:22:37.543284; freshness should be verified.

Geography

Entire Northern Ireland coastline, extending approximately 200 meters landward of the high water mark.