Historic Standardised Streamflow Index (SSI) using Tweedie distribution with standard period 1961-2010 for 303 UK catchments (1891-2015)

This dataset contains the Standardised Streamflow Index (SSI) data for 303 catchments across the United Kingdom from 1891 to 2015. The SSI is a drought index based on the cumulative probability of a given monthly mean streamflow occurring for a given catchment. Here, the SSI is calculated for the following accumulation periods: 1, 3, 6, 9, 12, 18 and 24 months. Each accumulation period is calculated for calendar end-months. The standard period used to fit the Tweedie distribution is 1961-2010.

The SSI was produced by the RCUK-funded Historic Droughts project in order to characterise and explore hydrological drought severity over the period 1891-2015. This dataset is an outcome of the Historic Droughts Project (grant number: NE/L01016X/1). Full details about this dataset can be found at https://doi.org/10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2018-03-12

Dataset Reference Date (): 2017-03-01

Identifier: https://catalogue.ceh.ac.uk/id/58ef13a9-539f-46e5-88ad-c89274191ff9

Identifier: doi: / 10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9

Other citation details: Barker, L.J., Smith, K.A., Svensson, C., Tanguy, M., Hannaford, J. (2018). Historic Standardised Streamflow Index (SSI) using Tweedie distribution with standard period 1961-2010 for 303 UK catchments (1891-2015). NERC Environmental Information Data Centre 10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9

UK Centre for Ecology & Hydrology - Lucy Barker

Centre for Ecology & Hydrology - Barker, L.J.

Centre for Ecology & Hydrology - Smith, K.A.

Centre for Ecology & Hydrology - Svensson, C.

Centre for Ecology & Hydrology - Tanguy, M.

Centre for Ecology & Hydrology - Hannaford, J.

NERC Environmental Information Data Centre

NERC EDS Environmental Information Data Centre

UK Centre for Ecology & Hydrology

Maintenance and update frequency: notPlanned

GEMET - INSPIRE themes, version 1.0 ()

Hydrography

GeoNames

United Kingdom

Keywords

Historic Droughts
Drought
Water Scarcity
Drought Inventory
Drought Catalogue
Drought Indicator
SSI
Standardised Streamflow Index
Catchment

Limitations on Public Access: otherRestrictions

Other constraints: no limitations

Use constraints: otherRestrictions

Other constraints: This resource is made available under the terms of the Open Government Licence

Use constraints: otherRestrictions

Other constraints: © UK Centre for Ecology & Hydrology

Use constraints: otherRestrictions

Other constraints: If you reuse this data, you should cite: Barker, L.J., Smith, K.A., Svensson, C., Tanguy, M., Hannaford, J. (2018). Historic Standardised Streamflow Index (SSI) using Tweedie distribution with standard period 1961-2010 for 303 UK catchments (1891-2015). NERC Environmental Information Data Centre https://doi.org/10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9

Spatial representation type: textTable

Topic category

Inland waters
Environment

Begin date: 1891-01-01

End date: 2015-11-01

Code: OSGB 1936 / British National Grid

Distribution Information

Data format

Comma-separated values (CSV) ()

Resource Locator: Download the data
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Resource Locator: Supporting information
Supporting information available to assist in re-use of this dataset

Resource Locator: Download the data
Download a copy of this data

Resource Locator: Supporting information
Supporting information available to assist in re-use of this dataset

Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: The SSI is calculated as defined in Svensson, et al., (2017 https://doi.org/ 10.1002/2016WR019276) and is based on the cumulative probability of a given monthly mean streamflow occurring for a given catchment. Here the SSI is calculated for the following accumulation periods: 1, 3, 6, 9, 12, 18 and 24 months. The Tweedie distribution was fitted to each accumulated time series of monthly mean flows. The 'SCI' package for R was used to calculate the SSI and a new function was written to enable the SCI package to call the 'tweedie' package for R. The input data used is monthly mean streamflow derived from modelled reconstructed streamflow (Smith et al., 2018 https://doi.org/10.5285/f710bed1-e564-47bf-b82c-4c2a2fe2810e ). Data were exported in comma separated value files (.csv format) and ingested into the EIDC.

Metadata

File identifier: 58ef13a9-539f-46e5-88ad-c89274191ff9 XML

Metadata Language: English (en)

Character set: ISO/IEC 8859-1 (also known as Latin 1)

Resource type: dataset

Hierarchy level name: dataset

Metadata Date: 2023-04-27T14:36:28

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

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