CRU CY4.05: Climatic Research Unit year-by-year variation of selected climate variables by country version 4.05 (Jan. 1901 - Dec. 2020)

The Climatic Research Unit (CRU) Country (CY) data version 4.05 dataset consists of ten climate variables for country averages at a monthly, seasonal and annual frequency: including cloud cover, diurnal temperature range, frost day frequency, precipitation, daily mean temperature, monthly average daily maximum and minimum temperature, vapour pressure, potential evapotranspiration and wet day frequency. This version uses the updated set of country definitions, please see the appropriate Release Notes.



This dataset was produced in 2021 by CRU at the University of East Anglia and extends the CRU CY4.04 data to include 2020. The data are available as text files with the extension '.per' and can be opened by most text editors.



Spatial averages are calculated using area-weighted means. CRU CY4.05 is derived directly from the CRU time series (TS) 4.05 dataset. CRU CY version 4.05 spans the period 1901-2020 for 292 countries.



To understand the CRU CY4.05 dataset, it is important to understand the construction and limitations of the underlying dataset, CRU TS4.05. It is therefore recommended that all users read the Harris et al, 2020 paper and the CRU TS4.05 release notes listed in the online documentation on this record.



CRU CY data are available for download to all CEDA users.

Simple

Date (Publication)
2021-07-02T11:54:39
Date (Creation)
2021-07-02T11:54:39
Citation identifier
https://catalogue.ceda.ac.uk/uuid/7a5529a8758041eb83b9c32f8461e50d
Citation identifier
NERC EDS Centre for Environmental Data Analysis / 7a5529a8758041eb83b9c32f8461e50d
Point of contact
Organisation name Individual name Electronic mail address Role

University of East Anglia Climatic Research Unit (CRU)

cru@uea.ac.uk

Author

Unavailable

Harris, Ian C

Unavailable

 		Author

Unavailable

Jones, Philip D.

Unavailable

 		Author

Unavailable

Osborn, Tim

Unavailable

 		Author

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Custodian

University of East Anglia Climatic Research Unit (CRU)

cru@uea.ac.uk

Owner

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Distributor

Unavailable

Harris, Ian C

Unavailable

 		Principal investigator

Unavailable

Jones, Philip D.

Unavailable

 		Principal investigator

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

pointofContact

Unavailable

Harris, Ian C

Unavailable

 		pointofContact

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Publisher
Maintenance and update frequency
Not planned
Update scope
Dataset
Keywords

  • CRU

  • CRU CY

  • CY

  • climate

GEMET - INSPIRE themes, version 1.0

  • atmospheric conditions
Access constraints
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
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
Language
English
Topic category
  • Climatology, meteorology, atmosphere
N
S
E
W
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Begin date
1901-01-01T00:00:00
End date
2020-12-31T23:59:59
Unique resource identifier
WGS 84
Distribution format
Name Version

The CRU CY data are provided as text files with the extension ".per", most text editors will open these files. See the linked file formats guide for more information.

Distributor contact
Organisation name Individual name Electronic mail address Role

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Distributor
OnLine resource
Protocol Linkage Name
https://catalogue.ceda.ac.uk/uuid/7a5529a8758041eb83b9c32f8461e50d

CEDA Data Catalogue Page
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/cru/data/cru_cy/cru_cy_4.05/

DOWNLOAD
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/cru/data/cru_cy/cru_cy_4.05/Read_Me_CRU_CY_4.05_Updated_Country_Definitions.txt

CRU CY4.05 Updated country definitions
OnLine resource
Protocol Linkage Name
https://crudata.uea.ac.uk/cru/data/hrg/v4announcement.htm

Publication of version 4 of the CRU TS monthly high-resolution gridded climate dataset
OnLine resource
Protocol Linkage Name
https://doi.org/10.1038/s41597-020-0453-3

Harris, I., Osborn, T.J., Jones, P. et al. Version 4 of the CRU TS monthly high-resolution gridded multivariate climate dataset. Sci Data 7, 109 (2020). https://doi.org/10.1038/s41597-020-0453-3

OnLine resource
Protocol Linkage Name
http://help.ceda.ac.uk/article/4472-cru-data-user-guide

CRU User Guide
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/cru/doc/CRU_CY_File_formats_guide.pdf

CRU CY File formats guide
OnLine resource
Protocol Linkage Name
http://www.cru.uea.ac.uk/cru/data/hrg

Climate Research Unit (CRU) data Homepage
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/cru/data/cru_cy/cru_cy_4.05/Release_Notes_CRU_CY_4.05.txt

CRU CY 4.05 Release Notes
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/cru/data/cru_cy/cru_cy_4.05/Read_Me_CRU_CY.txt

CRU CY 4.05 Read Me
Hierarchy level
Dataset

Conformance result

Title

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

Date (Publication)
2010-12-08
Statement

The Climatic Research Unit (CRU) CY data are derived directly from the CRU TS data, and version numbering is matched between the two datasets. The CRU CY data are produced by the CRU unit at the University of East Anglia and passed to the Centre for Environmental Data Analysis (CEDA) for long term archival and distribution. Previous releases of CRU CY include:



CRU CY 4.05 data were passed to CEDA for archival and distribution by CRU in June 2021.



CRU CY 4.04 data were passed to CEDA for archival and distribution by CRU in October 2020.



CRU CY 4.03 data were passed to CEDA for archival and distribution by CRU in May 2019.



CRU CY 4.02 data were passed to CEDA for archival and distribution by CRU in November 2018.



CRU CY 4.01 data were passed to CEDA for archival and distribution by CRU in September 2017.



CRU CY 4.00 data were passed to CEDA for archival and distribution by CRU in March 2017.



CRU CY 3.24.01 data files supplied to CEDA for long term archival by CRU in January 2017.



The CRU CY 3.24 data were withdrawn by CRU and CEDA in January 2017 due to known issues with the data.



CRU CY 3.24 data files supplied to CEDA for long term archival by CRU in October 2016.

Metadata

File identifier
7a5529a8758041eb83b9c32f8461e50d XML
Metadata language
English
Character set
UTF8
Parent identifier
Climatic Research Unit (CRU): Year-by-Year Variation of Selected Climate Variables by CountrY (CY) v4

a5fc25a8153148b9872f24ab889f64a9
Hierarchy level
Dataset
Date stamp
2026-02-08T03:23:21
Metadata standard name
UK GEMINI
Metadata standard version

2.3
Metadata author
Organisation name Individual name Electronic mail address Role

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Point of contact
 
 

Overviews

Spatial extent

thumbnail

Keywords

GEMET - INSPIRE themes, version 1.0

atmospheric conditions


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