Quoile Network Contribution: Hydrological Scores for Northern Ireland

Northern Ireland's Quoile network contribution area scores are derived from 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 is defined as areas scoring above +1 standard deviation from the mean.

Use Cases

• Identifying high-contribution zones for surface water flow based on land cover, rainfall, and terrain.
• Visualizing hydrological risk areas for integration into web maps and dashboards.
• Supporting land-use planning by analyzing areas with significant network contribution to river systems.
• Downloading geospatial data for further hydrological modeling and analysis in GIS software.

Strengths

• Derived from specific, named input datasets: CEH Land Cover 2007, Met Office average rainfall, and a 5-meter DTM.
• Available under the permissive OGL-UK-3.0 license, facilitating reuse.
• Cross-platform presence on uk_data and eu_open_data indicates established availability and potential importance.

Limitations

• Column names and data schema are unknown, limiting immediate analytical utility.
• Metadata on data size, row count, and author is consistently missing across all sources.
• The primary input land cover data is from 2007, which may not reflect current conditions.

Provenance

Source

OpenDataNI

Collection Method

Exported from SciMAP application outputs within SAGA GIS, using a defined statistical method (+1 standard deviation).

Time Range

Analysis is anchored to the CEH Land Cover 2007 dataset.

Freshness

Last updated 2026-07-08 on uk_data platform (though this appears to be a future date, indicating a potential metadata error).

Geography

Northern Ireland, United Kingdom.