A free dataset providing connected, topologically-corrected watercourses in Great Britain. OpenRiversNetwork containing over 144,000 km of watercourses.
Published by: GeoData, University of Southampton and the River Restoration Centre, Cranfield University under the Open Government Licence v3.0. Contains OS data © Crown Copyright [and database right] (2023).
Data resource: This dataset is built upon a 2023 release of Open Rivers an Open dataset from the Ordnance Survey. Using RivEX, a GIS river network processing tool, a range of topological errors were identified and corrected. The network was simplified, removing loops and waterways that break dendritic structure. The fully connected network was attributed with a range of geomorphological values and provides a framework for sampling and extracting information at site level. A secondary site layer mapping 500m spaced points across the entire network provides point based attribution for detailed river analysis.
