d0588746-9632-4c75-94f2-67e20ba34cad English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2026-01-20T17:14:13 UK GEMINI 2.3 OSGB 1936 / British National Grid Grid-to-Grid model simulations of daily anthropogenically influenced river flows for England and natural flows for Great Britain, 1961-2021 2026-01-16 publication https://catalogue.ceh.ac.uk/id/d0588746-9632-4c75-94f2-67e20ba34cad 10.5285/d0588746-9632-4c75-94f2-67e20ba34cad doi: 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 10.5285/d0588746-9632-4c75-94f2-67e20ba34cad 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 Full details about this dataset can be found at https://doi.org/10.5285/d0588746-9632-4c75-94f2-67e20ba34cad Rameshwaran, P. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact Rameshwaran, P. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-8972-953X ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Bell, V.A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-0792-5650 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Davies, H.N. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-7783-4853 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Rhodes-Smith, M.D. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-5256-1107 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author UK Centre for Ecology & Hydrology EMAIL NOT PROVIDED owner NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Hydrography theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Hydrology abstractions anthropogenic influence discharges hands-off-flow hydrology river flows otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions If you reuse this data, you should cite: 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 textTable grid 1000 English utf8 inlandWaters utilitiesCommunication 1961-01-01 2021-12-31 -7.487 2.072 49.806 58.704 NetCDF 4 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://catalogue.ceh.ac.uk/datastore/eidchub/d0588746-9632-4c75-94f2-67e20ba34cad Download the data Download a copy of this data fileAccess https://data-package.ceh.ac.uk/sd/d0588746-9632-4c75-94f2-67e20ba34cad.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 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.