Carlingford and Newry Network Contribution: High Surface Flow Areas

Network contribution area scores were exported from the SciMAP application outputs within SAGA GIS. The scores were based on inputs from CEH Land cover 2007, Met Office average rainfall and a 5 meter DTM. The High contribution category boundary was determined by selecting +1 standard deviation of the distribution of the scores, identifying areas with above-average potential for contributing surface flow to river networks.

Use Cases

• Identifying high-risk areas for surface runoff and potential flooding based on land cover, rainfall, and topography.
• Visualizing priority zones for water connectivity interventions in web maps and dashboards.
• Supporting catchment management plans by analyzing areas with high network contribution scores.
• Integrating with other hydrological models using the underlying 5m DTM and land cover data.

Strengths

• Derived from multiple authoritative input sources: CEH Land Cover 2007, Met Office rainfall, and a 5m Digital Terrain Model.
• Cross-platform presence on both EU and UK open data portals indicates established use and official provenance.
• Methodology is explicitly described: scores calculated in SAGA GIS, with high-contribution boundary defined statistically (+1 standard deviation).

Limitations

• Specific column names and data schema are not provided, limiting precise understanding of the attribute table.
• The core land cover input data is from 2007, which may not reflect current conditions.
• Row counts, file sizes, and detailed spatial extents are not listed in any source.

Provenance

Source

Government Digital Service

Collection Method

Exported from SciMAP application outputs within SAGA GIS, based on processed inputs from CEH, Met Office, and DTM data.

Time Range

Primary land cover input is from 2007.

Freshness

2026-04-15 14:19:59.102259

Geography

Carlingford and Newry area, Northern Ireland, United Kingdom.