Grid-to-Grid model simulations of daily anthropogenically influenced river flows for England and natural flows for Great Britain, 1961-2021
https://doi.org/10.5285/d0588746-9632-4c75-94f2-67e20ba34cad
Cite this dataset as:
Rameshwaran, P.; Bell, V.A.; Davies, H.N.; Rhodes-Smith, M.D. (2026). Grid-to-Grid model simulations of daily anthropogenically influenced river flows for England and natural flows for Great Britain, 1961-2021. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/d0588746-9632-4c75-94f2-67e20ba34cad
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This dataset is available under the terms of the Open Government Licence 
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The datasets provide Grid-to-Grid (G2G) hydrological model estimates of daily mean river flow (m3s-1) on a 1 km x 1 km grid. The river flows provided here are generated using the G2G model for Great Britain driven by observation-based meteorological data. They provide spatially consistent simulations of natural and anthropogenically influenced daily mean river flows. The natural flows are for the period 1st January 1961 to 31st December 2021, the observed-anthropogenically influenced flows are for 1st January 1999 to 31st December 2014 and the mean-anthropogenically influenced flows are for 1st January 1961 to 31st December 2021.
The G2G hydrological model spatial river flow simulations are available as follows:
(a) Natural river flows across the whole of Great Britain, excluding Orkney and Shetland islands
(b) Anthropogenically influenced river flows across the whole of England
The G2G hydrological model spatial river flow simulations are available as follows:
(a) Natural river flows across the whole of Great Britain, excluding Orkney and Shetland islands
(b) Anthropogenically influenced river flows across the whole of England
Publication date: 2026-01-16
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196 views
Formats
NetCDF, Comma-separated values (CSV)
Spatial information
Study area
Spatial representation types
Tabular (text)
Raster
Raster
Spatial reference system
OSGB 1936 / British National Grid
Temporal information
Temporal extent
1961-01-01 to 2021-12-31
Provenance & quality
The Grid-to-Grid model (G2G) is a grid-based, spatially distributed hydrological model which has recently been enhanced to take account of recorded monthly abstractions and annual discharges. While in practice, hydrological modelling has been undertaken for mainland Britain, model estimates for anthropogenically influenced catchments are only available for English catchments, albeit with a modest overlap of the Welsh border. This is because, to date, abstraction and discharge data are only available for England.
Licensing and constraints
This dataset is available under the terms of the Open Government Licence
Cite this dataset as:
Rameshwaran, P.; Bell, V.A.; Davies, H.N.; Rhodes-Smith, M.D. (2026). Grid-to-Grid model simulations of daily anthropogenically influenced river flows for England and natural flows for Great Britain, 1961-2021. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/d0588746-9632-4c75-94f2-67e20ba34cad
Supplemental information
Rameshwaran, P., Bell, V. A., Brown, M. J., Davies, H. N., Kay, A. L., Rudd, A. C., & Sefton, C. (2021). Use of Abstraction and Discharge Data to Improve the Performance of a National‐Scale Hydrological Model. Water Resources Research, 58(1).
Rameshwaran, P., Bell, V. A., Davies, H. N., Sadler, P., Beverton, A., & Thornton, R. (2025). DATA DOCUMENTATION - Gridded actual groundwater, surface water and tidal water abstraction, discharge and Hands-off Flow datasets for England (1999 to 2014). Zenodo.
Rameshwaran, P., Bell, V. A., Davies, H. N., Sadler, P., Beverton, A., Thornton, R., & Rhodes-Smith, M. (2025). Gridded actual groundwater, surface water and tidal water abstraction, discharge and Hands-off Flow datasets for England (1999 to 2014) [Dataset]. NERC EDS Centre for Environmental Data Analysis.
Rameshwaran, P., Bell, V. A., Davies, H. N., Baron, H., Keller, V., & Hannaford, J. (2025). DATA DOCUMENTATION - CS-NOW: Gridded future projections of natural and artificially influenced river flows (1980 to 2080). Zenodo.
Rameshwaran, P., Bell, V. A., Davies, H. N., Baron, H., Keller, V., Hannaford, J., & Rhodes-Smith, M. (2025). CS-NOW: Gridded future projections of natural and artificially influenced river flows (1980 to 2080) [Dataset]. NERC EDS Centre for Environmental Data Analysis.
Correspondence/contact details
Authors
https://orcid.org/0000-0002-8972-953X Other contacts
Publisher
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Rights holder
UK Centre for Ecology & Hydrology
Additional metadata
Keywords
Funding
Natural Environment Research Council Award: NE/X019063/1
Natural Environment Research Council Award: NE/L010208/1
Natural Environment Research Council Award: NE/R016429/1
UK Department for Energy Security and Net Zero (DESNZ)
Natural Environment Research Council Award: NE/L010208/1
Natural Environment Research Council Award: NE/R016429/1
UK Department for Energy Security and Net Zero (DESNZ)