Hydrological analysis in the United Kingdom is complex and fast evolving. Flood Modeller provides a digital workflow for undertaking methods from the Flood Estimation Handbook (FEH), but users should have a solid understanding of technical and regulatory requirements before undertaking analysis.
This page provides links and references to key documents and guidance for undertaking UK hydrology. References are not exhaustive and are subject to change as methods and guidance evolve. If you identify further resources that should be referenced here, please contact us via support.
| Document and Link | Author | Description |
| Flood Estimation Guidelines | Environment Agency | Document published by the Environment Agency providing an overview of key methods and guidance on application for studies in England |
| Flood and coastal risk projects, schemes and strategies: climate change allowances | Environment Agency | When and how risk management authorities should use climate change allowances for flood and coastal risk projects, schemes and strategies. |
| Flood risk assessments: climate change allowances | Environment Agency | When and how local planning authorities, developers and their agents should use climate change allowances in flood risk assessments. |
| Climate change allowances Scotland | SEPA | Climate change allowances for flood risk assessment in land use planning for Scotland. |
| Technical Flood Risk Guidance for Stakeholders | SEPA | Outlines methodologies that may be appropriate for hydrological and hydraulic modelling and what information SEPA requires to be submitted as part of a Flood Risk Assessment. |
| GN008 Flood estimation technical guidance | NRW | Flood estimation guidance published by Natural Resources Wales. This is available on request from NRW via this link |
| Climate change allowances and flood consequence assessments | NRW | Up to date allowances for sea level rise and peak river flows for use in flood consequences assessments published by Natural Resources Wales |
| Flood Estimation Handbook | UKCEH | Documents detailing methods associated with the Flood Estimation Handbook. All volumes can be downloaded from the linked page. Please note, many methods have been updated/refined since original publication in 1999. |
| Flood Studies Report | UKCEH | Flood Studies Report (FSR) originally published in 1975 can be downloaded from linked page. |
| Flood Hydrology Improvement Programme (FHIP) | Environment Agency | Programme to update UK hydrological methods for flood risk. Programme is underway and regular updates/material are published on the FHIP website. |
| Technical Flood Risk Guidance in relation to Allowances for Climate Change | Department for Infrastructure | This Technical Flood Risk Guidance sets out DfI Roads & Rivers and NI Water’s approaches to allowing for Climate Change |
| FEH Web Service | UKCEH | UKCEH website providing access to FEH catchment descriptors |
| National River Flow Archive | UKCEH | Data and reference data for the National River Flow Archive |
| WINFAP5 | WHS | Reference and help documents for WINFAP5 published by Wallingford Hydro Solutions |
| ReFH2 | WHS | Reference and help documents for ReFH2 published by Wallingford Hydro Solutions |