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

Network contribution area scores identify zones with high potential for surface water flow into river networks. The scores were calculated within SAGA GIS using inputs from the CEH Land Cover 2007 map, Met Office average rainfall data, and a 5-meter Digital Terrain Model. Areas classified as 'High contribution' represent locations scoring above +1 standard deviation of the calculated score distribution.

Use Cases

• Identifying high-risk runoff zones for flood mitigation planning based on terrain and land cover scores.
• Visualizing potential surface water connectivity for environmental dashboard displays.
• Incorporating rainfall and elevation factors into watershed contribution models.
• Analyzing land cover influence on hydrological network contributions.

Strengths

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

Limitations

• Specific column names and data schema are not provided in any source description.
• The dataset's temporal relevance is limited by its core land cover input from 2007.
• Exact row count, file size, and author information are unavailable.

Provenance

Source

OpenDataNI, derived from SciMAP application outputs within SAGA GIS.

Collection Method

GIS analysis combining land cover, rainfall, and digital terrain model inputs.

Time Range

Land cover data from 2007 suggests the analysis reflects conditions circa that period.

Freshness

Last updated 2026-07-08 on the primary platform, though the underlying data is older.

Geography

Northern Ireland, United Kingdom.