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NOAA Paleoclimatology Reconstructions Network -

HadCRUT3 and HadCRUT3V Surface Temperature Anomalies


HadCRUT3 Hemispheric and global average temperatures
HadCRUT3 Hemispheric and global average temperatures
PCN INSTRUMENTAL DATA
The instrumental data section of the PCN provides the HadCRUT3 and HadCRUT3v combined global land and ocean gridded (5°x5°) surface temperature data sets at annual and seasonal time resolution. [The "T3v" version of HadCRU contains variance corrections in relation to the "T3" version.] Both versions extend from 1850-2009. These data sets are often used for calibration and validation of regional and large-scale last 2+ millennium temperature reconstructions, once annualized or seasonalized from their native monthly time step. Along with the gridded data, the corresponding global, Northern Hemisphere, and Southern Hemisphere annual mean time series are provided in three standard file formats.

Download PCN INSTRUMENTAL- HadCRUT3 and HadCRUT3v data from the NOAA/WDC Paleo archive:
NOAA Paleoclimatology created annual and seasonal averages of the HadCRUT3 and HadCRUT3v gridded monthly instrumental temperature data for 1850-2009 for the Paleoclimate Network. These averaged data are available here in Text, Excel, and netCDF format. Also available are the corresponding HadCRU global or hemispheric annual averages. The text and netCDF formats provide the gridded and mean series individually for both HadCRUT3 and HadCRUT3v. The Excel format provides the data in one file each for HadCRUT3 and HadCRUT3v. Click here for the PCN Data Description and Format

Gridded annually averaged data:
Gridded annually averaged data, Excel format, for HadCRUT3 and HadCRUT3v data sets.
HadCRUT3 gridded Annual, Text or netCDF
HadCRUT3v gridded Annual Text or netCDF
A sample script to open the netCDF versions in the R programming environment is also provided.

Global, Northern Hemisphere, and Southern Hemisphere mean annual data:
Global and Hemispheric Annual Means, Excel format, for HadCRUT3 and HadCRUT3v data sets.
HadCRUT3 Global Annual, Text or netCDF
HadCRUT3v Global Annual, Text or netCDF
HadCRUT3 Northern Hemisphere Annual, Text or netCDF
HadCRUT3v Northern Hemisphere Annual, Text or netCDF
HadCRUT3 Southern Hemisphere Annual, Text or netCDF
HadCRUT3v Southern Hemisphere Annual, Text or netCDF
A sample script to open the netCDF versions in the R programming environment is also provided.

Seasonal averages of the data are also available. In parallel to the PCN Reconstruction data, there are two seasonal splits available for both HadCRUT3 and HadCRUT3v. One set splits the seasons based on the calendar year. This set contains January-March (winter), April-June (spring), July-September (summer) and October-December (fall) periods. The other set contains the traditional meteorological seasonal splits starting with the December of the previous year. The meteorological seasons set contains December-February (winter), March-May (spring), June-August (summer) and September-November (fall) periods.
[For a given grid cell, annual and seasonal averages were computed when at least two-thirds of the time steps involved had data values (8 out of 12 months, annual; 2 out of 3 months, seasonal).]

Seasonal averages:
Gridded Seasonally Averaged Data, Excel format, for HadCRUT3 and HadCRUT3v data sets.
HadCRUT3 Calendar Winter (JFM), Text or netCDF
HadCRUT3v Calendar Winter (JFM), Text or netCDF
HadCRUT3 Meteorological Winter (DJF), Text or netCDF
HadCRUT3v Meteorological Winter (DJF), Text or netCDF
HadCRUT3 Calendar Spring (AMJ), Text or netCDF
HadCRUT3v Calendar Spring (AMJ), Text or netCDF
HadCRUT3 Meteorological Spring (MAM), Text or netCDF
HadCRUT3v Meteorological Spring (MAM), Text or netCDF
HadCRUT3 Calendar Summer (JAS), Text or netCDF
HadCRUT3v Calendar Summer (JAS), Text or netCDF
HadCRUT3 Meteorological Summer (JJA), Text or netCDF
HadCRUT3v Meteorological Summer (JJA), Text or netCDF
HadCRUT3 Calendar Fall (OND), Text or netCDF
HadCRUT3v Calendar Fall (OND), Text or netCDF
HadCRUT3 Meteorological Fall (SON), Text or netCDF
HadCRUT3v Meteorological Fall (SON), Text or netCDF
A sample script to open the netCDF versions in the R programming environment is also provided.

Citation for Data Source:
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. Journal of Geophysical Research 111:D12106. doi:10.1029/2005JD006548.
Data available at the CRU website
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http://www.ncdc.noaa.gov/paleo/pubs/pcn/pcn-HadCRUT.html
Downloaded Wednesday, 23-Apr-2014 03:28:31 EDT
Last Updated Thursday, 19-Jan-2012 07:56:08 EST by paleo@noaa.gov
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