Strule Network Contribution: High Surface Water Connectivity Areas in Northern Ireland

Network contribution area scores identify zones with high potential for surface water flow into river networks. This geospatial dataset was generated within SAGA GIS using inputs from the 2007 CEH Land Cover map, Met Office average rainfall, and a 5-meter Digital Terrain Model. The 'High contribution' category is defined statistically as areas scoring above one standard deviation from the mean.

Use Cases

• Identifying high-risk runoff zones for flood risk modeling based on land cover and terrain scores.
• Prioritizing areas for natural flood management interventions based on network contribution scores.
• Visualizing surface water connectivity for environmental dashboards and web maps.
• Analyzing the relationship between rainfall patterns, land use, and potential water network contributions.

Strengths

• Derived from authoritative UK sources: CEH Land Cover 2007, Met Office rainfall, and a 5m DTM.
• Cross-platform presence on UK and EU open data portals signals established use and importance.
• Available under the permissive OGL-UK-3.0 license, facilitating reuse.

Limitations

• Core input land cover data is from 2007, which may not reflect current conditions.
• Column names and specific data schema are not provided in any source description.
• The 'last updated' metadata field (2026) appears to be a future date, indicating a potential metadata error.

Provenance

Source

OpenDataNI, generated from SciMAP application outputs within SAGA GIS.

Collection Method

Spatial analysis combining CEH Land Cover 2007, Met Office average rainfall, and a 5-meter Digital Terrain Model.

Time Range

2007 (for primary land cover input)

Freshness

2026-04-15 14:21:36.168543 (Note: This is a future date, suggesting a metadata anomaly)

Geography

Northern Ireland, United Kingdom