Six Mile Water Network Contribution: High Surface Flow Areas in Northern Ireland

Network contribution area scores were exported from the SciMAP application outputs within SAGA GIS. The scores are based on inputs from CEH Land Cover 2007, Met Office average rainfall, and a 5-meter Digital Terrain Model. The 'High contribution' category boundary was determined by selecting areas scoring above +1 standard deviation of the distribution.

Use Cases

• Identifying high-risk areas for surface water runoff based on land cover and rainfall inputs.
• Visualizing high network contribution zones for web maps and dashboards.
• Supporting catchment management decisions using derived geospatial scores.
• Analyzing the relationship between terrain, land use, and hydrological contribution.

Strengths

• Derived from multiple authoritative input datasets (CEH Land Cover 2007, Met Office rainfall, 5m DTM).
• Available in multiple geospatial file formats (e.g., GeoJSON, SHP, GPKG) for interoperability.
• Cross-platform presence on EU and UK open data portals indicates official recognition.

Limitations

• Column names and specific data schema are not provided in any source.
• Input land cover data is from 2007, which may limit contemporary analysis.
• Metadata for row count, size, and author is consistently missing or listed as 'None'.

Provenance

Source

Government Digital Service (UK), derived via SciMAP application in SAGA GIS.

Collection Method

Scores calculated from CEH Land Cover 2007, Met Office average rainfall, and a 5-meter DTM.

Time Range

Based on input data from 2007.

Freshness

Last updated on 2026-04-15 according to two entries, though this is a future date which may indicate a metadata error.

Geography

Northern Ireland, United Kingdom, specifically the Six Mile Water area.