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CRUTEM5 Previous Versions: CRUTEM.5.0.1.0

This version of CRUTEM5 has been superseded. The most recent release can be found on the CRUTEM5 versions page.

CRUTEM5 data is provided here in NetCDF4 format. The current version of the CRUTEM5 dataset is CRUTEM.5.0.1.0.


Version information

CRUTEM.5.0.1.0 updates the data from CRUTEM.5.0.0.0 to include the most recent monthly data as new obervational data becomes available. Data for other versions of CRUTEM5 are available via the CRUTEM5 versions page.


Gridded data

The CRUTEM5 gridded data files contain air temperature anomaly information over land, mapped onto a regular 5-degree latitude by 5-degree longitude grid, together with associated uncertainty information.

VariableNetCDF
Best estimate temperature anomalies CRUTEM.5.0.1.0.anomalies.nc
Measurement and sampling error CRUTEM.5.0.1.0.measurement_sampling.nc
Station error CRUTEM.5.0.1.0.station_uncertainty.nc
Exposure and urbanisation biases terms (97.5% confidence) CRUTEM.5.0.1.0.upper_bias.nc
Exposure and urbanisation biases terms (2.5% confidence) CRUTEM.5.0.1.0.lower_bias.nc
Temperature anomalies for alternative grid CRUTEM.5.0.1.0.alt.anomalies.nc
Number of stations per grid cell CRUTEM.5.0.1.0.station_counts.nc


Time series

Regional average time series are provided for selected regions. Time series are presented as temperature anomalies (deg C) relative to 1961-1990. Two varieties of time series files are provided. The summary series files provide best estimate series with upper and lower bounds on uncertainty. The component series files contain addition information on the contribution of each uncertainty source.

Summary seriesCSVNetCDF
Global Monthly Annual Monthly Annual
Northern hemisphere Monthly Annual Monthly Annual
Southern hemisphere Monthly Annual Monthly Annual


Uncertainty component seriesCSVNetCDF
Global Monthly Annual Monthly Annual
Northern hemisphere Monthly Annual Monthly Annual
Southern hemisphere Monthly Annual Monthly Annual


Station data

CRUTEM5 station files are provided in NetCDF4 format.

Station filesZipped NetCDF4
Station files Zipped NetCDF4


The station files are named according to each station's assigned station number. Each file contains information for a single station. Station files are named as [RRNNNC].nc, where RRNNNC is a 6-digit station ID number that is assigned by CRU. There are two forms of CRUTEM station numbers, indicated by the value of the final digit (C).

The first two digits of the ID number (RR) indicate the WMO block number for the station’s location (except for 99, which includes stations from a variety of countries), according to the codes used by the WMO (e.g. 01 is Norway, 16 is Italy, Greece and Malta). See this list of WMO ID ranges for each country to identify the first two digits used for each country.

Examples of CRUTEM station numbers:

A list of WMO station index ranges for each country is available from the WMO.


 

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