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
Default
Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2018-03-12
- Dataset Reference Date ()
- 2017-03-01
- 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
- Maintenance and update frequency
- notPlanned
- GEMET - INSPIRE themes, version 1.0 ()
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- Hydrography
- GeoNames
- Keywords
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- 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
- 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
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- Inland waters
- Environment
))
- Begin date
- 1891-01-01
- End date
- 2015-11-01
Distribution Information
- Data format
-
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Comma-separated values (CSV)
()
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Comma-separated values (CSV)
()
- Resource Locator
-
Download the data
Download a copy of this data
- Resource Locator
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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