London's first surface water strategy includes geospatial datasets for flood risk assessment and intervention planning. The data uses a 350m x 350m hex grid to assess exposure, vulnerability, and consequences across London. It was published by the Greater London Authority and last updated on March 25, 2026.
Use Cases
- Assessing current and future flood risk exposure based on hex grid vulnerability data.
- Planning catchment-level interventions using the 'Capture, Control, Adapt and Respond' framework.
- Identifying strategic priority areas for action based on subcatchment source and receptor analysis.
- Informing resource sharing and joint planning within Surface Water Catchment Partnership boundaries.
Strengths
- Spatial analysis uses a standardized 350m x 350m hex grid for consistent assessment.
- Data underpins specific published figures (Figure 10 and Figure 13) from the official strategy.
- Methodology is documented in referenced appendices (Appendix F, Appendix B, Appendix J).
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and specific file formats are unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to its focus on Greater London.
Provenance
- Source
- Greater London Authority
- Collection Method
- Likely compiled from hydrological models and assessments to form the evidence base for the Surface Water Strategy.
- Freshness
- Last updated 2026-03-25 12:00:39.286083; freshness should be verified.
- Geography
- Greater London, United Kingdom