Footprint: Bathymetric LiDAR Digital Terrain Model of Dundrum Bay and Carlingford Lough

A Digital Terrain Model derived from a 2021 pilot bathymetric LiDAR survey. The survey mapped nearshore areas of Dundrum Bay and Carlingford Lough using a Rapid Airborne Multi-beam Mapping System (RAMMS). The dataset is published by the Government Digital Service under the OGL-UK-3.0 license.

Use Cases

• Model coastal erosion and sediment transport based on high-resolution nearshore topography.
• Analyze underwater habitat suitability based on seabed terrain features.
• Plan marine infrastructure projects based on detailed bathymetric data.
• Calibrate hydrodynamic models using accurate digital terrain elevation.

Strengths

• Data was collected using a system capable of 25,000 range observations per second.
• The survey achieved penetration to 3-Secchi disk depths, with data collected to depths of 10m where possible.
• Available in multiple geospatial formats including ESRI SHAPE, GEOJSON, and KML.

Limitations

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

Provenance

Source

Government Digital Service

Collection Method

Created from a pilot bathymetric LiDAR survey using a Rapid Airborne Multi-beam Mapping System (RAMMS).

Time Range

2021

Freshness

Survey was commissioned in 2021; last update date for the dataset is unknown.

Geography

Nearshore areas of Dundrum Bay and Carlingford Lough.