Upper Bann Network Contribution: High Surface Water Connectivity Areas

Network contribution area scores identify land areas in Northern Ireland with high potential for surface water flow into river networks. These 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. The 'High contribution' category is defined as areas scoring above one standard deviation from the mean.

Use Cases

• Identifying high-risk runoff zones for flood mitigation planning based on land cover and topography.
• Visualizing potential surface water connectivity in web maps and dashboards for environmental reporting.
• Supporting catchment management strategies by analyzing areas contributing significantly to river network flow.

Strengths

• Derived from authoritative UK sources: CEH Land Cover 2007, Met Office rainfall, and a 5m DTM.
• Available under the permissive Open Government Licence (OGL-UK-3.0) for reuse.
• Cross-platform presence on eu_open_data and uk_data indicates established use and importance.

Limitations

• Core input land cover data is from 2007, which may not reflect current conditions.
• Specific column names, row counts, and file sizes are not provided in any source, limiting detailed assessment.
• Author and precise methodology details beyond the named tools (SAGA GIS, SciMAP) are not specified.

Provenance

Source

Government Digital Service (UK)

Collection Method

Calculated within SAGA GIS using the SciMAP application, based on integrated environmental datasets.

Time Range

Analysis is anchored to the CEH Land Cover 2007 dataset.

Freshness

2026-04-15 14:22:04.541551

Geography

Northern Ireland, United Kingdom