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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

Simple

Date (Publication)
2018-03-12
Date (Creation)
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
Point of contact
  UK Centre for Ecology & Hydrology - Barker, L.
Author
  Centre for Ecology & Hydrology - Barker, L.J.
https://orcid.org/0000-0002-2913-0664
Author
  Centre for Ecology & Hydrology - Smith, K.A.
https://orcid.org/0000-0003-1060-9103
Author
  Centre for Ecology & Hydrology - Svensson, C.
https://orcid.org/0000-0001-9294-5826
Author
  Centre for Ecology & Hydrology - Tanguy, M.
https://orcid.org/0000-0002-1516-6834
Author
  Centre for Ecology & Hydrology - Hannaford, J.
https://orcid.org/0000-0002-5256-3310
Publisher
  NERC Environmental Information Data Centre
Custodian
  NERC EDS Environmental Information Data Centre
Owner
  UK Centre for Ecology & Hydrology
Maintenance and update frequency
notPlanned Not planned
GEMET - INSPIRE themes, version 1.0
  • Hydrography
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Use constraints
otherRestrictions Other restrictions
Other constraints
This resource is made available under the terms of the Open Government Licence
Use constraints
otherRestrictions Other restrictions
Other constraints
© UK Centre for Ecology & Hydrology
Use constraints
otherRestrictions Other restrictions
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 Text, table
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Inland waters
  • Environment
Begin date
1891-01-01
End date
2015-11-01
N
S
E
W
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Unique resource identifier
OSGB 1936 / British National Grid
Distribution format
  • Comma-separated values (CSV) ()

Distributor
  NERC EDS Environmental Information Data Centre
OnLine resource
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Supporting information

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

Hierarchy level
dataset Dataset
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dataset

Conformance result

Date (Publication)
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.
File identifier
58ef13a9-539f-46e5-88ad-c89274191ff9 XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2025-03-21T13:35:37
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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Spatial extent

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Keywords

GEMET - INSPIRE themes, version 1.0
Hydrography

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