River Basin Elevation Models from 2004 LIDAR Surveys

2004 airborne LIDAR surveys provide Digital Terrain and Surface Models (DTMs and DSMs) for river basins. The data, provided by OpenDataNI, consists of 1km x 1km tiles with elevations on a 1m x 1m grid. Some data from 2009 and 2010 also includes the original Point Cloud files with a 0.2m irregular grid.

Use Cases

• Flood risk modeling based on high-resolution terrain elevation data.
• Hydrological analysis of river basins based on the digital terrain models.
• 3D visualization of land surfaces based on the 1m grid elevation data.
• Deriving topographic metrics for environmental studies based on the point cloud and DTM data.

Strengths

• High-resolution 1m x 1m elevation grid for detailed terrain representation.
• Includes both processed DTMs/DSMs and raw point cloud data (0.2m spacing) for 2009-2010 surveys.
• Data is organized in 1km x 1km tiles for manageable area-based downloads.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description notes the data is not a supported LPS product, suggesting limited official support.

Provenance

Source

OpenDataNI

Collection Method

Derived from airborne LIDAR survey systems.

Time Range

2004, with additional data from 2009 and 2010.

Freshness

Last updated 2026-07-08 13:32:26.539855; freshness should be verified.

Geography

River basins, likely in Northern Ireland given the source.