Surface Water Flood Risk Model Origin Data for the UK

Present-day data details the flood risk models used to create the UK's Risk of Flooding from Surface Water (RoFSW) maps. It indicates for each location whether national-scale or detailed local modeling was applied, along with associated model information. The dataset is produced by the UK Environment Agency and was last updated in April 2026.

Use Cases

• Compare the spatial coverage of national-scale models versus detailed local models for surface water flooding.
• Validate flood hazard assessments by cross-referencing the model origin data with flood extent and depth maps.
• Analyze the distribution of model types (national vs. local) to identify regions with the most detailed flood risk modeling.

Strengths

• Data is enhanced with compatible, locally produced modeling from lead local flood authorities (LLFAs).
• Covers present-day surface water flood risk for the United Kingdom.

Limitations

• Specific row count, column names, and sample data are unavailable for review.
• The primary file format is PDF, which is not ideal for direct computational analysis.

Provenance

Source

Environment Agency (UK)

Collection Method

Produced using national scale modelling enhanced with compatible local modelling from LLFAs.

Time Range

Present-day.

Freshness

Last updated on 2026-04-07.

Geography

United Kingdom.