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Historic Gridded Standardised Precipitation Index for the United Kingdom 1862-2015 (generated using gamma distribution with standard period 1961-2010) v3

[THIS DATASET HAS BEEN WITHDRAWN]. 5km gridded Standardised Precipitation Index (SPI) data for Great Britain, which is a drought index based on the probability of precipitation for a given accumulation period as defined by [1]. SPI is calculated for different accumulation periods: 1, 3, 6, 9, 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 1862 to 2015. This release supersedes the previous version, doi:10.5285/ed7444fc-8c2a-473e-98cd-e68d3cffa2b0, as it addresses localised issues with the source data (Met Office monthly rainfall grids) for the period 1960 to 2000. It also supersedes version 2 of the dataset with the same title (doi:10.5285/1b228b42-42f8-4aee-b964-2c92a21d5556). Version 2 contained incorrect files for SPI18 (duplicated SPI12 files). NOTE: the difference between this dataset with the previously published dataset 'Gridded Standardized Precipitation Index (SPI) using gamma distribution with standard period 1961-2010 for Great Britain [SPIgamma61-10]" [2], apart from the temporal and spatial extent, is the underlying rainfall data from which SPI was calculated. In the previously published dataset, CEH-GEAR [3], [4] was used, whereas in this new version, Met Office 5km rainfall grids were used (see supporting information for more details). The methodology to calculate SPI is the same in the two datasets. [1] 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. [2] Tanguy, M.; Hannaford, J.; Barker, L.; Svensson, C.; Kral, F.; Fry, M. (2015). Gridded Standardized Precipitation Index (SPI) using gamma distribution with standard period 1961-2010 for Great Britain [SPIgamma61-10]. NERC Environmental Information Data Centre. https://doi.org/10.5285/94c9eaa3-a178-4de4-8905-dbfab03b69a0 [3] Keller, V. D. J., Tanguy, M., Prosdocimi, I., Terry, J. A., Hitt, O., Cole, S. J., Fry, M., Morris, D. G., and Dixon, H.: CEH-GEAR: 1 km resolution daily and monthly areal rainfall estimates for the UK for hydrological use, Earth Syst. Sci. Data Discuss., 8, 83-112, doi:10.5194/essdd-8-83-2015, 2015. [4] Tanguy, M.; Dixon, H.; Prosdocimi, I.; Morris, D. G.; Keller, V. D. J. (2014). Gridded estimates of daily and monthly areal rainfall for the United Kingdom (1890-2012) [CEH-GEAR]. NERC Environmental Information Data Centre. https://doi.org/10.5285/5dc179dc-f692-49ba-9326-a6893a503f6e Full details about this dataset can be found at https://doi.org/10.5285/12c3a0d7-741c-4b1f-bfcb-f72ce5b43036

Simple

Date (Publication)
2017-08-24
Date (Creation)
2017-07-10
Identifier
https://catalogue.ceh.ac.uk/id/12c3a0d7-741c-4b1f-bfcb-f72ce5b43036
Identifier
doi: / 10.5285/12c3a0d7-741c-4b1f-bfcb-f72ce5b43036
Other citation details
Tanguy, M., Fry, M., Svensson, C., Hannaford, J. (2017). Historic Gridded Standardised Precipitation Index for the United Kingdom 1862-2015 (generated using gamma distribution with standard period 1961-2010) v3. NERC Environmental Information Data Centre 10.5285/12c3a0d7-741c-4b1f-bfcb-f72ce5b43036
Point of contact
  UK Centre for Ecology & Hydrology - Tanguy, M.
Author
  Centre for Ecology & Hydrology - Tanguy, M.
https://orcid.org/0000-0002-1516-6834
Author
  Centre for Ecology & Hydrology - Fry, M.
https://orcid.org/0000-0003-1142-4039
Author
  Centre for Ecology & Hydrology - Svensson, C.
https://orcid.org/0000-0001-9294-5826
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
GEMET - INSPIRE themes, version 1.0
  • Meteorological geographical features
Access constraints
otherRestrictions Other restrictions
Other constraints
Superseded
Use constraints
otherRestrictions Other restrictions
Other constraints
Licence terms and conditions apply
Use constraints
otherRestrictions Other restrictions
Other constraints
If you reuse this data, you should cite: Tanguy, M., Fry, M., Svensson, C., Hannaford, J. (2017). Historic Gridded Standardised Precipitation Index for the United Kingdom 1862-2015 (generated using gamma distribution with standard period 1961-2010) v3. NERC Environmental Information Data Centre https://doi.org/10.5285/12c3a0d7-741c-4b1f-bfcb-f72ce5b43036
Spatial representation type
grid Grid
Distance
5000  urn:ogc:def:uom:EPSG::9001
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Climatology, meteorology, atmosphere
Begin date
1862-01-01
End date
2015-12-31
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Unique resource identifier
OSGB 1936 / British National Grid
Distribution format
  • netCDF ( 4 )

Distributor
  NERC EDS Environmental Information Data Centre
OnLine resource
Supporting information

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

Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date (Publication)
2010-12-08
Statement
SPI is calculated as originally defined in [1]. SPI is based on the cumulative probability of a given rainfall amount occurring at a location. The historic rainfall data of the station is fitted to a statistical distribution. For this dataset, the statistical distribution used is the gamma distribution, which has been extensively used and is recommended as a default choice for Europe by [2]. The L-moments method was used to estimate the gamma distribution parameters, as the maximum likehood method was failing to fit a realistic distribution in some isolated cases. To calculate SPI, the R package SCI was used [3], but modified to use L-moments (instead of Maximum Likelihood). The input data used is the monthly rainfall grids from the Met Office 5km gridded rainfall product. In this version of the dataset (version 2), the monthly rainfall grids from 1960 to 2000 was derived from the Met Office 5-km daily rainfall grids, to address some localised issues that were found in the Met Office monthly rainfall grids. [1] 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. [2] Stagge, J. H., Tallaksen, L. M., Gudmundsson, L., Van Loon, A. F. and Stahl, K. (2015), Candidate Distributions for Climatological Drought Indices (SPI and SPEI). Int. J. Climatol. doi: 10.1002/joc.4267 [3] Gudmundsson, L. & Stagge, J. H. (2014). Package 'SCI': Standardized Climate Indices such as SPI, SRI or SPEI. Repository CRAN, http://cran.r-project.org/web/packages/SCI/SCI.pdf
File identifier
12c3a0d7-741c-4b1f-bfcb-f72ce5b43036 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
2025-03-21T13:23:46
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/
 
 

Overviews

Spatial extent

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Keywords

GEMET - INSPIRE themes, version 1.0
Meteorological geographical features

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