233090b2-1d14-4eb9-9f9c-3923ea2350ff
English
ISO/IEC 8859-1 (also known as Latin 1)
dataset
dataset
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
LA1 4AP
UK
info@eidc.ac.uk
https://eidc.ac.uk/
EIDC website
The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences.
information
pointOfContact
2024-02-27T16:13:37
UK GEMINI
2.3
OSGB 1936 / British National Grid
Historic Gridded Standardised Precipitation Index for the United Kingdom 1862-2015 (generated using gamma distribution with standard period 1961-2010) v4
2017-10-11
publication
2017-07-11
creation
2017-10-06
revision
https://catalogue.ceh.ac.uk/id/233090b2-1d14-4eb9-9f9c-3923ea2350ff
10.5285/233090b2-1d14-4eb9-9f9c-3923ea2350ff
doi:
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) v4. NERC Environmental Information Data Centre 10.5285/233090b2-1d14-4eb9-9f9c-3923ea2350ff
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 McKee et al [1]. There are seven accumulation periods: 1, 3, 6, 9, 12, 18, 24 months and for each period SPI is 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 version supersedes previous versions (version 2 and 3) of the same dataset due to minor errors in the data 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]" (Tanguy et al., 2015; https://doi.org/10.5285/94c9eaa3-a178-4de4-8905-dbfab03b69a0) , apart from the temporal and spatial extent, is the underlying rainfall data from which SPI was calculated. In the previously published dataset, CEH-GEAR (Tanguy et al., 2014; https://doi.org/10.5285/5dc179dc-f692-49ba-9326-a6893a503f6e) 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. Full details about this dataset can be found at https://doi.org/10.5285/233090b2-1d14-4eb9-9f9c-3923ea2350ff
Maliko Tanguy
UK Centre for Ecology & Hydrology
enquiries@ceh.ac.uk
pointOfContact
Tanguy, M.
Centre for Ecology & Hydrology
enquiries@ceh.ac.uk
https://orcid.org/0000-0002-1516-6834
ORCID record
ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
information
author
Fry, M.
Centre for Ecology & Hydrology
enquiries@ceh.ac.uk
https://orcid.org/0000-0003-1142-4039
ORCID record
ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
information
author
Svensson, C.
Centre for Ecology & Hydrology
enquiries@ceh.ac.uk
https://orcid.org/0000-0001-9294-5826
ORCID record
ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
information
author
Hannaford, J.
Centre for Ecology & Hydrology
enquiries@ceh.ac.uk
https://orcid.org/0000-0002-5256-3310
ORCID record
ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
information
author
NERC EDS Environmental Information Data Centre
enquiries@ceh.ac.uk
custodian
NERC Environmental Information Data Centre
enquiries@ceh.ac.uk
publisher
notPlanned
Meteorological geographical features
theme
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
otherRestrictions
Registration is required to access this data
otherRestrictions
Licence terms and conditions apply
otherRestrictions
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) v4. NERC Environmental Information Data Centre https://doi.org/10.5285/233090b2-1d14-4eb9-9f9c-3923ea2350ff
grid
5000
English
utf8
climatologyMeteorologyAtmosphere
1862-01-01
2015-12-31
-8.648
1.768
49.864
60.861
NetCDF
4
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
distributor
https://catalogue.ceh.ac.uk/datastore/eidchub/233090b2-1d14-4eb9-9f9c-3923ea2350ff
Download the data
Download a copy of this data
download
https://data-package.ceh.ac.uk/sd/233090b2-1d14-4eb9-9f9c-3923ea2350ff.zip
Supporting information
Supporting information available to assist in re-use of this dataset
information
dataset
dataset
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
2010-12-08
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, 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 4), 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