Climatic Research Unit : Data

High-resolution gridded datasets

This table presents the high-resolution gridded climate datasets available from the Climatic Research Unit. We have developed a consistent form of identification for these data-sets to provide greater clarity to users. We recommend that any users of these data-sets should use these labels to refer to these data-sets.

Where the status is marked as 'available on request', please email cru@uea.ac.uk, stating which dataset(s) you require and the area of research you intend to use them in. Please do not request those datasets marked as 'superseded', unless you are certain that you require them.

Please always reference the listed papers when using these datasets

data-set space time variety variables reference status (pink=current)
CRU CL 1.0 0.5° global 1961-1990 climatology pre, wet, tmp, dtr, vap, spc, cld, frs, wnd New et al. (1999) available from IPCC-DDC
CRU CL 2.0 10' global 1961-1990 climatology pre, wet, tmp, dtr, rhm, ssh, frs, wnd New et al. (2002) available for download
CRU CL 2.1 10' Europe 1961-1990 climatology cld, vap (for other variables use CRU CL 2.0) Mitchell et al. (2003) available on request
CRU TS 1.0 0.5° global 1901-1995 time-series pre, tmp, dtr, wet, vap, cld, frs New et al. (2000) available on request but superseded by CRU TS3.22
CRU TS 1.1 0.5° global 1996-1998 time-series pre, tmp New et al. (2000; updated) available on request but superseded by CRU TS3.22
CRU TS 1.2 10' Europe 1901-2000 time-series pre, tmp, dtr, vap, cld Mitchell et al. (2003) available for download
CRU TS 2.0 0.5° global 1901-2000 time-series pre, tmp, dtr, vap, cld Mitchell et al. (2003) available for download but superseded by CRU TS3.22
CRU TS 2.10 0.5° global 1901-2002 time-series pre, tmp, tmx, tmn, dtr, vap, cld, wet, frs Mitchell and Jones (2005) available for download but superseded by CRU TS3.22
CRU TS3.00 0.5° global 1901-2005 time-series pre, tmp, tmx, tmn, dtr, vap, cld, wet, frs Harris et al. (2014) available from BADC but superseded by CRU TS3.22
CRU TS3.10
CRU TS3.10.01
0.5° global 1901-2009 time-series tmp, tmx, tmn, dtr, vap, cld, pet
pre (for pre, use v3.10.01)
Harris et al. (2014) available from BADC but superseded by CRU TS3.22
CRU TS3.20 0.5° global 1901-2011 time-series pre, tmp, tmx, tmn, dtr, vap, cld, wet, frs, pet Harris et al. (2014) available from BADC but superseded by CRU TS3.22
CRU TS3.21 0.5° global 1901-2012 time-series pre, tmp, tmx, tmn, dtr, vap, cld, wet, frs, pet Harris et al. (2014) available from BADC but superseded by CRU TS3.22
CRU TS3.22 0.5° global 1901-2013 time-series pre, tmp, tmx, tmn, dtr, vap, cld, wet, frs, pet Harris et al. (2014) Shortly to be available from BADC (free registration required)

(contact i.harris@uea.ac.uk until available at BADC)

TYN CY 1.0 country 1901-1998 countries pre, tmp, dtr, wet, vap, cld, frs Mitchell et al. (2002) available for download but superseded by CRU CY3.22
TYN CY 1.1 country 1901-2000 countries pre, tmp, dtr, wet, vap, cld, frs, tmn, tmx Mitchell et al. (2002) available for download but superseded by CRU CY3.22
CRU CY 3.21 country 1901-2012 countries pre, tmp, dtr, wet, vap, cld, frs, tmn, tmx, pet Harris et al. (2014) available from BADC but superseded by CRU CY3.22
CRU CY 3.22 country 1901-2013 countries pre, tmp, dtr, wet, vap, cld, frs, tmn, tmx, pet Harris et al. (2014) Shortly to be available from BADC (free registration required)

(contact i.harris@uea.ac.uk until available at BADC)

The following scenarios of possible future climate change are no longer recommended for use because they are based on older generation climate models and no support is provided. The data are still available for the purposes of replicating previously published work that may have used these data. For scenarios based on newer generations of climate models, see ClimGen.

data-set space time variety variables reference status
TYN SC 1.0 10' Europe 2001-2100 scenarios pre, tmp, dtr, vap, cld Mitchell et al. (2003) withdrawn but available for download
TYN SC 2.0 0.5° global 2001-2100 scenarios pre, tmp, dtr, vap, cld Mitchell et al. (2003) withdrawn but available for download
TYN CY 2.0 country 2070-2099 countries pre, tmp Mitchell et al. (2003) withdrawn but available for download
TYN CY 3.0 country 1961-2100 countries pre, tmp, dtr, vap, cld Mitchell et al. (2003) withdrawn but available for download

Please note that all data-sets are limited to the land surface only; the ocean grid boxes are left blank. The 'global' domain also excludes Antarctica.

The identifying label is made up of:

Types of dataset
climate dataset nature purpose
CL (climatology) The average climate in the recent past. These are high-resolution grids. Allows spatial comparisons of environmental features; the dependency of certain features on mean climate may be assessed.
TS (time-series) Month-by-month variations in weather/climate over the last century or so. These are high-resolution grids. Allows variations in weather/climate to be compared with variations in other phenomena.
SC (scenarios) A set of scenarios of possible climates in the future, using data from climate models. These are high-resolution grids. Allows environmental impact models to consider month-by-month changes in climate from the past, through the present, and into the future. Future uncertainties are represented through scenarios.
CY (countries) Country averages, based on aggregating grid cells together from the grids in CL, TS, or SC. Allows international comparisons to be made, in conjunction with socio-economic data such as GDP, population, land area, etc.

Abbreviations used for variables
label variable units
cld cloud cover percentage (%)
dtr diurnal temperature range degrees Celsius
frs frost day frequency days
pet potential evapotranspiration millimetres (mm)
pre precipitation millimetres (mm)
rhm relative humidity percentage (%)
ssh sunshine duration hours
tmp daily mean temperature degrees Celsius
tmn monthly average daily minimum temperature degrees Celsius
tmx monthly average daily maximum temperature degrees Celsius
vap vapour pressure hectopascals (hPa)
wet wet day frequency days
wnd wind speed metres per second (m/s)

References

Conditions of use

The various datasets on the CRU website are provided for all to use, provided the sources are acknowledged. Acknowledgement should preferably be by citing one or more of the papers referenced. The website can also be acknowledged if deemed necessary.


Last updated: July 2014, Ian Harris

These datasets are made available under the Open Database License.
Any rights in individual contents of the datasets are licensed under the
Database Contents License under the conditions of Attribution and Share-Alike.
Please use the attribution Climatic Research Unit, University of East Anglia