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Input data archived for publication:

Abram, N.J., McGregor, H.V., Tierney, J.E., Evans, M.N., McKay, N.P., Kaufmann, D. and the PAGES 2k Consortium (2016). Early onset of industrial-era warming across the oceans and continents. Nature, doi:10.1038/nature19082.

Data archive prepared by Nerilie Abram, The Australian National University, email: nerilie.abram@anu.edu.au, June 2016.

Original databases and publications for these datasets are given as urls and dois. Please cite original sources when using this data. All data are cropped to retain only the post-1500CE data used in Abram et al., 2016.


This zipfile five matlab data structures:

1. archive_p2k_regional_reconstructions.mat: 
Contains the regional ocean and land temperature reconstructions produced by the PAGES 2k working groups. Data is within the sub-structure titled data: giving the year (year), reconstruction (rec), reported uncertainty (uncertainty, either as upper and lower bounds or as a single column representing an error to be added either-side of the reconstruction), uncertainty type, and the annual or seasonal characteristic of the reconstructions. The North American reconstruction is based on the decadally resolved tree-ring based reconstruction, and has been interpolated to pseudo-annual resolution using a stepwise function that continues decade-average values across 10y intervals.

2. archive_p2k_sitelevel_terrestrial.mat: 
Contains the site-level terrestrial data that contribute to the continental-scale reconstructions, grouped according to the reconstruction region that they contribute to. Marine data that overlap with the Ocean2k synthesis have been removed from the original databases. The data substructure for each region contains the site level records (year and rec) and information about record id, type, latitude, longitude, and climate relation (positive or negative response to temperature). Where records were at less than annual resolution they were interpolated to pseudo-annual resolution using a stepwise function that continues values across full interval they represent.

3. archive_p2k_sitelevel_marine.mat: 
Contains the site-level ocean2k data that contribute to the high-resolution tropical ocean reconstructions, grouped according to the reconstruction region that they contribute to, as well as the moderately-resolved subset of data from the global ocean synthesis. The data substructure for each region contains the site level records (year and rec) and information about record id, type, latitude, longitude, climate relation (positive or negative response to temperature) and the proxy. Moderately resolved marine records also include information about whether sites have an a priori classification as upwelling locations. Records in the moderately-resolved marine database were interpolated to pseudo-annual resolution using a stepwise function that continues values across full interval they represent. Further details of the site-level marine records can be found in Extended Data Figure 7 and Extended Data Table 1 of Abram et al., 2016.  

4. archive_p2k_modeloutput_fullforcing.mat:
Contains regionally averaged, annually resolved multi-model output since 1500CE for surface air temperature (land regions) and sea surface temperature (ocean regions) corresponding to the PAGES2k and Ocean2k reconstruction regions. Two substructures contain the data: data_annual_full contains annual average model output, data_annual_seasonsp contains annual resolution data which has been compiled with the same seasonal characteristics as reported for the regional reconstructions. Within both data structures model output (year and rec) is given for each reconstruction region, with the model parameter and compilation seasonality reported. Further details of the ten last millennium + historical simulations used can be found in Extended Data Table 2 of Abram et al., 2016. 

5. archive_p2k_modeloutput_forcingensembles.mat:
As in archive_p2k_modeloutput_fullforcing, but for model output using multiple ensembles of full forcing, or part forcing experiments.







