Coxon, G. et al

Catchment attributes and hydro-meteorological timeseries for 671 catchments across Great Britain (CAMELS-GB)

This dataset provides hydro-meteorological timeseries and landscape attributes for 671 catchments across Great Britain. It collates river flows, catchment attributes and catchment boundaries from the UK National River Flow Archive together with a suite of new meteorological timeseries and catchment attributes. Daily timeseries for the time period 1st October 1970 to the 30th September 2015 are provided for a range of hydro-meteorological data (including rainfall, potential evapotranspiration, temperature, radiation, humidity and flow). A comprehensive set of catchment attributes are quantified describing a range of catchment characteristics including topography, climate, hydrology, land cover, soils, hydrogeology, human influences and discharge uncertainty.

This dataset is intended for the community as a freely available, easily accessible dataset to use in a wide range of environmental data and modelling analyses. A research paper (Coxon et al, CAMELS-GB: Hydrometeorological time series and landscape attributes for 671 catchments in Great Britain) describing the dataset in detail will be made available in Earth System Science Data (

Publication date: 2020-02-20

Get the data

This dataset is available under the terms of the Open Government Licence

This data is available as Comma-separated values (CSV) or Shapefile

You must cite: Coxon, G.; Addor, N.; Bloomfield, J.P.; Freer, J.; Fry, M.; Hannaford, J.; Howden, N.J.K.; Lane, R.; Lewis, M.; Robinson, E.L.; Wagener, T.; Woods, R. (2020). Catchment attributes and hydro-meteorological timeseries for 671 catchments across Great Britain (CAMELS-GB). NERC Environmental Information Data Centre.


© UK Centre for Ecology & Hydrology

© University of Bristol

Contains Environment Agency information © Environment Agency and/or database right

Derived from UK bedrock hydrogeological mapping and UK superficial productivity mapping, BGS © UKRI


Study area
Temporal extent
1970-10-01    to    2015-09-30

Provenance & quality

CAMELS-GB provides hydro-meteorological timeseries and catchment attributes for 671 catchments.
Catchment meteorological timeseries are derived from CEH-GEAR, CHESS-PE and CHESS-MET. Catchment flow timeseries and boundaries are sourced from the UK National River Flow Archive.

Many of the catchment attributes are sourced either from the National River Flow Archive or from the catchment meteorological timeseries produced in CAMELS-GB. Land cover catchment attributes are derived from the GB 1km percentage target class, Land Cover Map 2015 (Rowland et al, 2017; Soil catchment attributes are derived from the European Soil Database Derived Data product (Hiederer, 2013a, 2013b), and the modelled depth to bedrock global product (Pelletier et al., 2016). Hydrogeology catchment attributes are derived from the British Geological Survey hydrogeology map (BGS, 2019) and superficial deposits map. Discharge uncertainty estimates for each catchment are derived using the method described in Coxon et al (2015). Human influence catchment attributes were derived from datasets describing ground/surface water abstractions and discharges sourced from the Environment Agency and from datasets describing reservoir capacity and use from the UK reservoir inventory (Durant and Counsell, 2018).

Where possible we have provided quantitative estimates of uncertainty, including timeseries for two potential evapo-transpiration products, percentiles of soil catchment attributes and the first set of national discharge uncertainty estimates. For all datasets we have highlighted the key uncertainties and limitations of the underlying source data products and any methods used to derive the catchment attributes. We hope to raise awareness and encourage users of the dataset to consider these uncertainties in their analyses.

See supporting information for more details.

Supplemental information

This dataset is a supplement to:

Coxon, G., Addor, N., Bloomfield, J.P., Freer, J., Fry, M., Hannaford, J., Howden, N.J.K., Lane, R., Lewis, M., Robinson, E.L., Wagener, T., & Woods, R. (2020). CAMELS-GB: hydrometeorological time series and landscape attributes for 671 catchments in Great Britain. Earth System Science Data, 12(4), 2459–2483.

Correspondence/contact details

Gemma Coxon
University of Bristol


Coxon, G.
University of Bristol
Addor, N.
University of Exeter
Bloomfield, J.P.
British Geological Survey
Freer, J.
University of Bristol
Fry, M.
UK Centre for Ecology & Hydrology
Hannaford, J.
UK Centre for Ecology & Hydrology
Howden, N.J.K.
University of Bristol
Lane, R.
University of Bristol
Lewis, M.
British Geological Survey
Robinson, E.L.
UK Centre for Ecology & Hydrology
Wagener, T.
University of Bristol
Woods, R.
University of Bristol

Other contacts

NERC EDS Environmental Information Data Centre
NERC Environmental Information Data Centre

Additional metadata

Topic categories
Inland Waters
Natural Environment Research Council Award: NE/L010399/1
Spatial representation types
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid
Last updated
25 June 2021 18:43