Standardised Precipitation Index time series for Integrated Hydrological Units Groups (1961-2012)

• Published by: Environmental Information Data Centre
• Last updated: 16 February 2023
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

Standardised Precipitation Index (SPI) data for Integrated Hydrological Units (IHU) groups (Kral et al. [1]). SPI is a drought index based on the probability of precipitation for a given accumulation period as defined by McKee et al. [2]. SPI is calculated for different accumulation periods: 1, 3, 6, 12, 18, 24 months. Each of these is in turn calculated for each of the twelve calendar months. Note that values in monthly (and for longer accumulation periods also annual) time series of the data therefore are likely to be autocorrelated. The standard period which was used to fit the gamma distribution is 1961-2010. The dataset covers the period from 1961 to 2012. [1] Kral, F., Fry, M., Dixon, H. (2015). Integrated Hydrological Units of the United Kingdom: Groups. NERC-Environmental Information Data Centre doi:10.5285/f1cd5e33-2633-4304-bbc2-b8d34711d902 [2] McKee, T. B., Doesken, N. J., Kleist, J. (1993). The Relationship of Drought Frequency and Duration to Time Scales. Eighth Conference on Applied Climatology, 17-22 January 1993, Anaheim, California. Full details about this dataset can be found at https://doi.org/10.5285/dfd59438-2170-4472-b810-bab33a83d09f

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Link to the data	Format	File added	Data preview
Supporting information	ZIP	16 February 2023	Not available
Download the data	N/A	16 February 2023	Not available

Additional information

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• Added to data.gov.uk: 2021-06-25T18:37:58
• Access contraints: If you reuse this data, you should cite: Tanguy, M., Kral., F., Fry, M., Svensson, C., Hannaford, J. (2015). Standardised Precipitation Index time series for Integrated Hydrological Units Groups (1961-2012). NERC Environmental Information Data Centre https://doi.org/10.5285/dfd59438-2170-4472-b810-bab33a83d09f
• Harvest GUID: dfd59438-2170-4472-b810-bab33a83d09f
• Extent: Latitude: 61.026° to 49.766°
• Extent: Longitude: -7.557° to 3.554°
• Dataset reference date: 2015-05-22 (publication)
• Dataset reference date: 2015-05-14 (creation)
• Frequency of update: notPlanned
• Responsible party: UK Centre for Ecology & Hydrology (pointOfContact); Centre for Ecology & Hydrology (author); NERC Environmental Information Data Centre (publisher); NERC EDS Environmental Information Data Centre (custodian)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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