Faughan Network Contribution: High Surface Water Runoff Areas

Network contribution area scores identify zones contributing significantly to surface water flow in Northern Ireland's Faughan catchment. These scores were derived from a 2007 land cover map, average rainfall data, and a 5-meter digital terrain model using the SciMAP application within SAGA GIS. The 'High contribution' category is defined statistically as areas scoring above one standard deviation from the mean.

Use Cases

• Flood risk modeling based on high network contribution area scores.
• Catchment management planning using land cover and rainfall-derived runoff potential.
• Environmental impact assessment for land-use changes within the Faughan catchment.
• Dashboard visualization of hydrological connectivity for stakeholder communication.

Strengths

• Derived from established input sources: CEH Land Cover 2007, Met Office average rainfall, and a 5-meter DTM.
• Cross-platform availability on both UK and EU open data portals indicates recognized utility.
• Data is explicitly downloadable and licensed for reuse under OGL-UK-3.0.

Limitations

• Key metadata is missing: specific column names, dataset size, row count, and author are not provided.
• The core land cover input data is from 2007, which may not reflect current conditions.
• Conflicting 'last updated' dates (2026-07-08, 2026-07-02) on the uk_data platform suggest potential metadata errors.

Provenance

Source

OpenDataNI

Collection Method

Exported from SciMAP application outputs within SAGA GIS, based on inputs from CEH Land Cover 2007, Met Office average rainfall, and a 5-meter DTM.

Time Range

Input data anchored to 2007 land cover; analysis date unspecified.

Freshness

Last updated dates are inconsistent, with the most recent listed as 2026-07-08, but the underlying source data is from 2007.

Geography

Faughan catchment, Northern Ireland, United Kingdom.