Wallingford, January 2003Photo: RAF Benson
The Thames at Wallingford, July 2007 National Water Archive
The National Water Archive (NWA) comprises two major data centres: CEH’s National River Flow Archive (NRFA); and the National Groundwater Level Archive (NGLA), hosted by the British Geological Survey. Formerly one of the seven NERC Designated Data Centres, the NWA is now a component of the CEH Environmental Information Data Centre (EIDC).
Time Series Data
The NWA includes extensive time series of river flow and groundwater level data held by the NRFA and NGLA respectively.
Spatial Data
The NWA includes a variety of spatial data sets, such as:
- Digitised UK river network (at 1:50,000 scale)
- Hydrological Digital Terrain Model (HDTM) of the UK (1 km grid)
- Hydrology of Soil Type maps (HOST) (1km grid)
- Digital maps of average rainfall (1 km grid)
- 100-year flood risk map of England and Wales
- Digitised catchment boundaries
For more information on NWA spatial data, please contact our Data Licensing Team.
