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

• Published by: Environmental Information Data Centre
• Last updated: 29 June 2024
• Topic: Not added
• Licence: Other Licence ; View licence information

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). Full details about this dataset can be found at https://doi.org/10.5285/58ef13a9-539f-46e5-88ad-c89274191ff9

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Link to the data	Format	File added	Data preview
Supporting information	ZIP	29 June 2024	Not available
Download the data	N/A	29 June 2024	Not available

Additional information

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• Added to data.gov.uk: 2024-02-27
• Access contraints: © UK Centre for Ecology & Hydrology
• Harvest GUID: 58ef13a9-539f-46e5-88ad-c89274191ff9
• Extent: Latitude: 60.861° to 49.864°
• Extent: Longitude: -8.648° to 1.768°
• Dataset reference date: 2018-03-12 (publication)
• Dataset reference date: 2017-03-01 (creation)
• Frequency of update: notPlanned
• Responsible party: (pointOfContact, author, publisher, custodian, owner)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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