NERC Data Catalogue Service
CRUTEM.5.0.0.0: Climatic Research Unit (CRU) gridded near-surface air temperature anomalies over land
CRUTEM (Climatic Research Unit TEMperature) is a gridded dataset of global historical near-surface air temperature anomalies over land at a monthly timescale. It is a collaborative product of the Climatic Research Unit at the University of East Anglia, the Met Office Hadley Centre and the National Centre for Atmospheric Science. CRUTEM also contributes the land air temperature station data to the global (land and ocean) temperature dataset called HadCRUT.
CRUTEM5 is the fifth major version of the dataset, covering the time period from 1850, with a spatial resolution of 5° latitude by 5° longitude and a monthly-mean time resolution. The gridded temperature anomaly fields are based on a compilation of monthly-mean temperature observational records from weather stations. This compilation contains 10639 station records, but only 7983 records had the necessary coverage to be used for producing the gridded dataset. Anomalies are differences from average conditions in the 1961-1990 period. Hemispheric and global mean time series of land air temperature anomalies are also provided.
Simple
- Date (Publication)
- 2020-12-21T15:20:09
- Date (Creation)
- 2020-12-21T15:20:09
- Identifier
- Centre for Environmental Data Analysis (CEDA) / 901f576dacae4e049630ab879d6fb476
- Maintenance and update frequency
- notPlanned Not planned
- Update scope
- dataset Dataset
- Keywords
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- CRUTEM
- Hadley
- UEA
- CRU
- near-surface air temperature
- GEMET - INSPIRE themes, version 1.0
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- 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
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Climatology, meteorology, atmosphere
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- Begin date
- 1850-01-01T00:00:00
- End date
- 2019-12-31T23:59:59
- Unique resource identifier
- WGS 84
- Distribution format
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The files are NetCDF4 formatted.
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The files are NetCDF4 formatted.
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- OnLine resource
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CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
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DOWNLOAD
Download Data
- OnLine resource
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Climatic Research Unit - Data
No further details.
- OnLine resource
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Met Office Hadley Centre observations datasets - CRUTEM5
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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Daily or sub-daily measurement of near-surface air temperature at 10639 weather stations around the world.
Calculation of daily and then of monthly average temperature. Calculation of monthly averages is done by data providers.
Compilation by National Meteorological Services (NMS) of multiple stations, with quality control and in some cases homogeneity assessment and homogenisation.
Compilation by Climatic Research Unit (CRU) of data acquired from NMS and other compilations into a global station database.
Quality control and outlier identification by CRU.
Quality control and outlier identification by UK Met Office of near-real time data provided by NMS via global telecommunication systems.
Conversion to monthly temperature anomalies (relative to each station’s normal, i.e. the temporal mean over the 1961-1990 reference period) by CRU and Met Office.
Gridding of the station data onto a regular grid by CRU and Met Office.
Calculation of uncertainties from multiple sources that affect each grid-cell value by Met Office.
Calculation of global and hemispheric means, with uncertainties from multiple sources including incomplete spatial coverage, by CRU and Met Office.
- File identifier
- 901f576dacae4e049630ab879d6fb476 XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
- Parent identifier
- CRUTEM datasets eeabb5e1ff2140f48e76ea1ffda6bb48
- Hierarchy level
- dataset Dataset
- Date stamp
- 2025-11-15T03:20:48
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Overviews
Spatial extent
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