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CRU CY3.22: Climatic Research Unit (CRU) Year-by-Year Variation of Selected Climate Variables by CountrY (CY) version 3.22 (Jan. 1901 - Dec. 2013)
Observation graphic
Dataset
Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2014-09-18
DOI Publication Date: 2014-09-17
Download Stats: last 12 months
 
Latest Info: 2014-09-24: DOI issued for CRU CY3.22. Dataset now citeable.
Abstract

The CRU CY version 3.22 dataset consists of country averages at a monthly, seasonal and annual frequency, for ten climate variables, including cloud cover, diurnal temperature range, frost day frequency, precipitation, daily mean temperature, monthly average daily maximum and minimum temperature, vapour pressure, Potential Evapo-transpiration and wet day frequency.

This dataset was produced in 2014 by the Climatic Research Unit (CRU) at the University of East Anglia.

Spatial averages are calculated using area-weighted means. CRU CY3.22 is derived directly from the CRU TS3.22 dataset. CRU CY version 3.22 spans the period 1901-2013 for 289 countries.

To understand the CRU-CY3.22 dataset, it is important to understand the construction and limitations of the underlying dataset, CRU TS3.22. It is therefore recommended that all users read the paper referenced below (Harris et al, 2014).

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

Citable as:  University of East Anglia Climatic Research Unit; Harris, I.C. (2014): CRU CY3.22: Climatic Research Unit (CRU) Year-by-Year Variation of Selected Climate Variables by CountrY (CY) version 3.22 (Jan. 1901 - Dec. 2013). NCAS British Atmospheric Data Centre, 17 September 2014. doi:10.5285/9A8A0770-D7FC-4FC4-B83F-227E1170F2EB. http://dx.doi.org/10.5285/9A8A0770-D7FC-4FC4-B83F-227E1170F2EB
Keywords:  Not defined
Previous Info:

2014-09-24 DOI issued for CRU CY3.22. Dataset now citeable.

Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_313ca538-3edb-11e4-893a-00163e251233
Access rules:
Access to these data is available to any registered CEDA user.Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Abbreviation:
cru_cy_3.22
Data lineage:

CRU CY 3.21 data files acquired directly from CRU in 2013.
CRU CY 3.22 data files supplied by CRU in July 2014.

Data Quality:
CRU CY is derived directly from the CRU TS dataset, and version numbering is matched between the two datasets. Thus, the first official version of CRU CY is v3.21, as it is based on CRU TS v3.21. An advisory note was issued by CRU in July 2013 regarding an issue in the spatial area of Northeast Africa, for the PRE and WET variables only. Details are given in the documentation as part of the archive.
File Format:
The CRU CY 3.22 data are available in human readable ASCII file format. To understand how to read the CRU CY 3.22 data files, please refer to the CRU_CY_3.22_File_Formats_explained PDF documentation (under Linked Documentation below).
Process overview
This dataset was generated by the computation detailed below.

Title
UEA Climate Research Unit (CRU) High Resolution gridding software deployed on UEA Climate Research Unit (CRU) computer system
Abstract
This computation involved: UEA Climate Research Unit (CRU) High Resolution gridding software deployed on UEA Climate Research Unit (CRU) computer system. For details about the production of CRU TS and CRU CY datasets, please refer to Harris et al. (2014) - see link below.
Input Description
None
Output Description
None
Software Reference
None
There are no comments about this dataset
Temporal Range
1901-01-01T00:00:00
2013-12-31T00:00:00
Geographic Extent

  90.0000°  
-180.0000°     180.0000°
  -60.0000°  
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