Exponential parameters fitted to Delayed Flow Indices curves calculated for GB catchments, 1970-2015
https://doi.org/10.5285/d1df0a31-d329-4b21-8aa0-ba135d6a8042
Cite this dataset as:
Leeming, K.A.; Bloomfield, J.P. (2025). Exponential parameters fitted to Delayed Flow Indices curves calculated for GB catchments, 1970-2015. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/d1df0a31-d329-4b21-8aa0-ba135d6a8042
Download/Access
PLEASE NOTE:
By accessing or using this dataset, you agree to the terms of the relevant licence agreement(s). You will ensure that this dataset is cited in any publication that describes research in which the data have been used.
This dataset is available under the terms of the Open Government Licence 
This dataset contains exponential parameters from fitting an exponential curve to Delayed Flow Index (DFI or Characteristic Delay) curves using river discharge data from CAMELS-GB (Catchment attributes and hydro-meteorological timeseries for 671 catchments across Great Britain). The DFI curve at each catchment describes the response to rainfall over different time windows. The exponential parameters summarise the shape of the DFI curve at each site.
Publication date: 2025-09-12
View numbers valid from 12 September 2025 Download numbers valid from 12 September 2025 (information prior to this was not collected)
Format
Comma-separated values (CSV)
Spatial information
Study area
Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid
Temporal information
Temporal extent
1970-01-01 to 2015-12-31
Provenance & quality
This dataset is generated using the CAMELS-GB dataset (https://doi.org/10.5285/8344e4f3-d2ea-44f5-8afa-86d2987543a9) with two main steps: calculating the Delayed Flow Index for each catchment, then fitting an exponential curve with three parameters (a, b, c) to these values.
One catchment (39036) did not achieve convergence so has NA values for the a, b, c parameters.
The a, b, c parameters are saved rounded to three decimal places.
One catchment (39036) did not achieve convergence so has NA values for the a, b, c parameters.
The a, b, c parameters are saved rounded to three decimal places.
Licensing and constraints
This dataset is available under the terms of the Open Government Licence
Cite this dataset as:
Leeming, K.A.; Bloomfield, J.P. (2025). Exponential parameters fitted to Delayed Flow Indices curves calculated for GB catchments, 1970-2015. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/d1df0a31-d329-4b21-8aa0-ba135d6a8042
Related
Correspondence/contact details
Other contacts
Rights holder
British Geological Survey
Custodian
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Additional metadata
Funding
Natural Environment Research Council Award: NE/X002470/1