For any point on the map:
The FEH Web Service provides the data and rainfall model outputs that are required to apply the UK flood frequency and rainfall estimation procedures. These procedures are defined by the Flood Estimation Handbook (FEH) and subsequent updates, and implemented in the FEH Software.
It provides catchment level descriptors and rainfall depth-duration-frequency (DDF) estimates to enable flood risk to be estimated for over four million catchments across the UK. It also provides the descriptors and rainfall DDF estimates for any location to support the derivation of runoff rates and volumes to support drainage design using the FEH rainfall runoff methods (ReFH 2).
For purchased catchments, you can view and export:
For any purchased point on the map (with 1m resolution), you can view and export:
Explore the hydrologically relevant mapping interface to identify the catchment boundaries (over 0.5 km2), and review the variation in annual rainfall (SAAR41-70), hydrogeology and level of urbanisation.
To help in the application of the FEH methods, the interface displays NRFA gauging stations, including Peak Flows classification and links to the station NRFA page.
The FEH Web Service replaces the FEH CD-ROM.
As an individual user, you can buy and spend credits as you wish. Your purchases cannot be shared with other user accounts. Sign up here »
As an organisational account user you will have access to all catchment and point data purchased by any users in your organisational. Your organisation nominates one or more lead users who are responsible for purchasing credits for the organisation and allocating them to users. Please visit our FAQs page for further information.
To join an existing organisational account, please contact your lead user who can send you an invite. Alternatively, you can sign up as an individual user first and then contact us to convert the account to an organisational one.
A discounted rate is available for educational use: £150 (excluding VAT) for 1,000 credits (£1.50 per catchment retrieval). The credits must all be released to the same Web Service account. If you qualify for this offer we will issue you with a licence certificate along with an invoice for payment. The signed licence certificate and payment must be received before the credits are allocated.
Please contact us if you would like to arrange and educational licence.
The Flood Estimation Handbook (FEH), with its subsequent updates and FEH Software, provides the industry-standard methods for assessing flood risk in the UK. It offers guidance on the estimation of rainfall and river flood frequency and development site runoff rates across the UK. These are required for:
The procedures are clearly explained, and supporting theory and results included.