Hydrology data for the UK area. Includes peak flow data, data from the National Hydrological Monitoring Programme, and other
general data. The National River Flow Archive (NRFA) is the UK's focal point for river flow data. The NRFA collates, quality
controls, and archives hydrometric data from gauging station networks across the UK including the extensive networks operated
by the Environment Agency (England), Natural Resources Wales, the Scottish Environment Protection Agency and the Rivers Agency
(Northern Ireland).