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

Barker, Lucy ORCID: https://orcid.org/0000-0002-2913-0664; Smith, Katie ORCID: https://orcid.org/0000-0003-1060-9103; Svensson, Cecilia; Tanguy, Maliko ORCID: https://orcid.org/0000-0002-1516-6834; Hannaford, Jamie ORCID: https://orcid.org/0000-0002-5256-3310. Historic Standardised Streamflow Index (SSI) using Tweedie distribution with standard period 1961-2010 for 303 UK catchments (1891-2015). NERC Environmental Data Information Centre 12 March 2018, https://doi.org/10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9 [Output (Electronic)]

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Abstract/Summary

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).

Item Type:	Output (Electronic)
Electronic Identifier / URL / DOI:	https://doi.org/10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9
Date made live:	29 Aug 2018 14:32 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/519518

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