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Restrictions | Details | Caveats | File Naming | Citation | References | Original Source | Contact

Jones (CRU) Air Temperature Anomalies Version 3: CRUTEM3

Note: This dataset supersedes version 2.

Brief Description:

  • Global gridded (5°x5°) monthly anomalies of observed air temperature and combined observed air and marine temperature (HADCRU3) from the mid 1800's to the present. More Details...

Temporal Coverage:

  • Monthly anomalies and statistics from 1850/01 to 2014/05 .

Spatial Coverage:

  • 5.0 degree latitude x 5.0 degree longitude global grid (72x36).
  • 87.5S - 87.5N, 177.5W - 177.5E.

Levels:

  • Surface

Update Schedule:

  • Monthly

Download/Plot Data:

Archive parameters: File names are composed of variable abbreviations and statistic name:

(variable).(time).(statistic).nc

Variable Statistic Level Download File Create Plot/Subset
Air Temperature Anomaly Surface air.mon.anom.nc plot
Air Temperature NOBS Surface air.mon.anom.nobs.nc plot
Air Temperature Sampling Error Surface air.mon.anom.samplingerror.nc plot
Air Temperature Station Error Surface air.mon.anom.stationerror.nc plot
Air Temperature 2.5 bias Surface air.mon.anom.biased2.5.nc plot
Air Temperature 97.5 bias Surface air.mon.anom.biased97.5.nc plot
Air Temperature: Variance adjusted Anomaly Surface air.mon.anom.nc plot
Air temperature (from Hadcrut2!) monthly long term mean Surface air.mon.ltm.nc plot

Usage Restrictions:

  • Please register at the Hadley Centre so that they can prove their datasets are widely used and so they can get funding. When publishing work using the data, please use the following citation: P. Brohan, J.J. Kennedy, I. Harris, S.F.B. Tett and P.D. Jones, Uncertainty estimates in regional and global observed temperature changes: a new dataset from 1850. J. Geophys. Res, 111, D12106, doi:10.1029/2005JD006548.

Detailed Description:

Caveats:

  • None

Related File Naming & Structure Information:

File Names:

  • var.time.stat.nc   (In directory: /Datasets/cru/crutem3/std/)
  • var.time.stat.nc   (In directory: /Datasets/cru/crutem3/var/)

Dataset Format and Size:

  • PSD standard NetCDF ~20 Mbytes file for each monthly file.
  • PSD standard NetCDF .13 Mbytes file the monthly ltm file.

Missing Data:

  • -9.96921e+36f.

Citation:

  • Brohan, P., J.J. Kennedy, I. Harris, S.F.B. Tett and P.D. Jones, 2006: Uncertainty estimates in regional and global observed temperature changes: a new dataset from 1850. J. Geophysical Research 111, D12106, doi:10.1029/2005JD006548
  • Please note: If you acquire CRUTEM3 data products from PSD, we ask that you acknowledge us in your use of the data. This may be done by including text such as CRUTEM3 data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/ in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSD to justify keeping the CRUTEM3 data set freely available online in the future. Thank you!

References:

  • Brohan, P., J.J. Kennedy, I. Harris, S.F.B. Tett and P.D. Jones, 2006: Uncertainty estimates in regional and global observed temperature changes: a new dataset from 1850. J. Geophysical Research 111, D12106, doi:10.1029/2005JD006548
  • Jones, P.D., Osborn, T.J., Briffa, K.R., Folland, C.K., Horton, B., Alexander, L.V., Parker, D.E. and Rayner, N.A., 2001: Adjusting for sampling density in grid-box land and ocean surface temperature time series. J. Geophys. Res. 106, 3371-3380.

Original Source:

Contact:

  • Physical Sciences Division: Data Management
    NOAA/ESRL/PSD
    325 Broadway
    Boulder, CO 80305-3328
    esrl.psd.data@noaa.gov