Faughan Network Contribution: High Surface Water Connectivity Zones

Network contribution area scores delineate zones of high hydrological connectivity in Northern Ireland's Faughan catchment. This geospatial layer was generated by the SciMAP application within SAGA GIS, integrating CEH Land Cover 2007, Met Office average rainfall, and a 5-meter Digital Terrain Model. The 'High contribution' boundary is defined statistically as areas scoring above one standard deviation from the mean.

Use Cases

• Identifying priority areas for natural flood management interventions based on surface flow connectivity scores.
• Visualizing high-contribution zones in web maps or dashboards for environmental monitoring and reporting.
• Supporting catchment-scale hydrological analysis by integrating land cover, rainfall, and terrain data.
• Informing land-use planning decisions by mapping areas with high potential for contributing runoff to the river network.

Strengths

• Derived from multiple authoritative UK sources: CEH Land Cover, Met Office rainfall, and a 5m DTM.
• Method is explicitly documented: scores calculated in SciMAP/SAGA GIS with a +1 standard deviation threshold.
• Available in multiple geospatial formats (e.g., GeoJSON, SHP, GPKG) for flexibility in analysis.

Limitations

• Core input land cover data is from 2007, which may not reflect current conditions.
• Column names and specific attribute schema are not provided in any source description.
• Dataset size and row counts are unknown, limiting assessment of granularity and processing needs.

Provenance

Source

Government Digital Service (UK), outputs from SciMAP application in SAGA GIS.

Collection Method

GIS analysis integrating CEH Land Cover 2007, Met Office average rainfall, and a 5-meter DTM.

Time Range

Land cover data reference year is 2007; analysis date is unspecified.

Freshness

2026-04-15 14:21:29.350349

Geography

Faughan catchment, Northern Ireland, United Kingdom.