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HadUK-Grid Gridded Climate Observations on a 1km grid over the UK, v1.1.0.0 (1836-2021)

HadUK-Grid is a collection of gridded climate variables derived from the network of UK land surface observations. The data have been interpolated from meteorological station data onto a uniform grid to provide complete and consistent coverage across the UK. The datasets cover the UK at 1 km x 1 km resolution. These 1 km x 1 km data have been used to provide a range of other resolutions and across countries, administrative regions and river basins to allow for comparison to data from UKCP18 climate projections. The dataset spans the period from 1836 to 2021, but the start time is dependent on climate variable and temporal resolution.

The gridded data are produced for daily, monthly, seasonal and annual timescales, as well as long term averages for a set of climatological reference periods. Variables include air temperature (maximum, minimum and mean), precipitation, sunshine, mean sea level pressure, wind speed, relative humidity, vapour pressure, days of snow lying, and days of ground frost.

This data set supersedes the previous versions of this dataset which also superseded UKCP09 gridded observations. Subsequent versions may be released in due course and will follow the version numbering as outlined by Hollis et al. (2018, see linked documentation).

The changes for v1.1.0.0 HadUK-Grid datasets are as follows:

* The addition of data for calendar year 2021

* The addition of 30 year averages for the new reference period 1991-2020

* An update to 30 year averages for 1961-1990 and 1981-2010. This is an order of operation change. In this version 30 year averages have been calculated from the underlying monthly/seasonal/annual grids (grid-then-average) in previous version they were grids of interpolated station average (average-then-grid). This order of operation change results in small differences to the values, but provides improved consistency with the monthly/seasonal/annual series grids. However this order of operation change means that 1961-1990 averages are not included for sfcWind or snowlying variables due to the start date for these variables being 1969 and 1971 respectively.

* A substantial new collection of monthly rainfall data have been added for the period before 1960. These data originate from the rainfall rescue project (Hawkins et al. 2022) and this source now accounts for 84% of pre-1960 monthly rainfall data, and the monthly rainfall series has been extended back to 1836.

Net changes to the input station data used to generate this dataset:

-Total of 122664065 observations

-118464870 (96.5%) unchanged

-4821 (0.004%) modified for this version

-4194374 (3.4%) added in this version

-5887 (0.005%) deleted from this version

The primary purpose of these data are to facilitate monitoring of UK climate and research into climate change, impacts and adaptation. The datasets have been created by the Met Office with financial support from the Department for Business, Energy and Industrial Strategy (BEIS) and Department for Environment, Food and Rural Affairs (DEFRA) in order to support the Public Weather Service Customer Group (PWSCG), the Hadley Centre Climate Programme, and the UK Climate Projections (UKCP18) project. The output from a number of data recovery activities relating to 19th and early 20th Century data have been used in the creation of this dataset, these activities were supported by: the Met Office Hadley Centre Climate Programme; the Natural Environment Research Council project "Analysis of historic drought and water scarcity in the UK"; the UK Research & Innovation (UKRI) Strategic Priorities Fund UK Climate Resilience programme; The UK Natural Environment Research Council (NERC) Public Engagement programme; the National Centre for Atmospheric Science; National Centre for Atmospheric Science and the NERC GloSAT project; and the contribution of many thousands of public volunteers. The dataset is provided under Open Government Licence.

Simple

Date (Publication)
2022-05-26T16:05:17
Date (Creation)
2022-05-26T16:05:17
Identifier
https://catalogue.ceda.ac.uk/uuid/bbca3267dc7d4219af484976734c9527
Identifier
NERC EDS Centre for Environmental Data Analysis / bbca3267dc7d4219af484976734c9527
Identifier
doi / 10.5285/bbca3267dc7d4219af484976734c9527
Author
  Met Office - author
Met Office , FitzRoy Road , Exeter , EX1 3PB ,
0370 900 0100
Author
  Unavailable - Hollis, Dan ( author )
Author
  Unavailable - McCarthy, Mark ( author )
Author
  Unavailable - Kendon, Michael ( author )
Author
  Unavailable - Legg, Tim ( author )
Custodian
  NERC EDS Centre for Environmental Data Analysis - custodian
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
Distributor
  NERC EDS Centre for Environmental Data Analysis - distributor
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
pointofContact
  NERC EDS Centre for Environmental Data Analysis - point_of_contact
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
pointofContact
  Met Office - point_of_contact
Met Office , FitzRoy Road , Exeter , EX1 3PB ,
0370 900 0100
Publisher
  NERC EDS Centre for Environmental Data Analysis - publisher
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
Maintenance and update frequency
notPlanned Not planned
Update scope
dataset Dataset
Keywords
  • Met Office
  • UKCP18
  • BEIS
  • Defra
  • land surface
  • climate observations
  • hadobs
GEMET - INSPIRE themes, version 1.0
  • atmospheric conditions
Access constraints
otherRestrictions Other restrictions
Other constraints
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use constraints
otherRestrictions Other restrictions
Other constraints
Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Spatial representation type
grid Grid
Metadata language
EnglishEnglish
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
1836-01-01T00:00:00
End date
2021-12-31T23:59:59
Unique resource identifier
WGS 84
Distribution format
  • Data are NetCDF formatted. ()

Distributor
  NERC EDS Centre for Environmental Data Analysis - Data Center Contact
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
OnLine resource
CEDA Data Catalogue Page

Detail and access information for the resource

OnLine resource
DOWNLOAD

Download Data

OnLine resource
HadUK-Grid Summary Change Log (upto version v1.1.0.0) detailing changes to available data and processing

No further details.

OnLine resource
Met Office documentation on HadUK-Grid data

No further details.

OnLine resource
Hollis, D, McCarthy, MP, Kendon, M, Legg, T, Simpson, I. HadUK‐Grid—A new UK dataset of gridded climate observations. Geosci Data J. 2019; 00: 1– 9. https://doi.org/10.1002/gdj3.78

No further details.

OnLine resource
HadUK-Grid v1.1.0.0 change log - new file lists of new files and file number totals for deleted, changed and adjusted files

No further details.

OnLine resource
Hawkins et al. (2022): Millions of historical monthly rainfall observations taken in the UK and Ireland rescued by citizen scientists. Geoscience Data Journal. Article DOI: 10.1002/gdj3.157

No further details.

Hierarchy level
dataset Dataset

Conformance result

Date (Publication)
2010-12-08
Statement
Data provided by the UK Met Office for archiving in the Centre for Environmental Data Analysis (CEDA) archives.
File identifier
bbca3267dc7d4219af484976734c9527 XML
Metadata language
EnglishEnglish
Character set
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
Parent identifier
HadUK-Grid gridded and regional average climate observations for the UK 4dc8450d889a491ebb20e724debe2dfb
Hierarchy level
dataset Dataset
Date stamp
2025-11-15T03:24:24
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Centre for Environmental Data Analysis
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
 
 

Overviews

Spatial extent

N
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E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
atmospheric conditions

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