Data: Spatial Performance of Four Climate Field Reconstruction Methods Targeting the Common Era

Data files can be individually downloaded at the links in the table below. The reconstructions provided as text files in the table are two-dimensional arrays in which the first column is the calendar year and the remaining 1732 columns correspond to the reconstructed time series in each grid cell of the target domain. The locations of the reconstructed grid cells are mapped to the geographic data in the locs_target.dat file as follows: columns 2 through 1733 in the reconstruction files correspond to the grid cell with coordinates (longitude and latitude of the grid cell centers) that are given by rows 1 through 1732 in the locs_target.dat file. This convention is also adopted for the file containing the CCSM and ECHO-g target fields in the table. Similarly, columns 2 through 105 in the Mann et al. [1998] pseudoproxy files correspond to the locations given in rows 1 through 104 in the locs_pprox_MBH98.dat file (or columns 2 through 284 in the locs_pprox_PNAS.dat file, which correspond to the locations in the Mann et al. [2008] pseudoproxy files).

Unless otherwise noted, all of the reconstructions in the table were done using a pseudoproxy distribution approximating the most populated nest in the Mann et al. [1998] multiproxy network. This network has been represented in relevant file names using the abbreviation MBH98. Similarly, files associated with the Mann et al. [2008] network use PNAS as the designating abbreviation. All reconstructions also have been performed using a non-hybrid methodology, except for some RegEM-TTLS reconstructions, which are identified using the NH (non-hybrid) and H (hybrid) designations in the appropriate file names.


CCSM Pseudoproxy Experiments

ECHO-g Pseudoproxy Experiments


Mann, M. E., R. S. Bradley, and M. K. Hughes (1998), Global-scale temperature patterns and climate forcing over the past six centuriesNature, 392, 779-787.

Mann, M. E., Z. Zhang, M. K. Hughes, R. S. Bradley, S. K. Miller, S. Rutherford, and F. Ni (2008), Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millenniaProc. Nat. Acad. Sci. USA, 105, 36, 13252-13257.

This material is based upon work supported in part by the National Science Foundation (Grants: ATM0902436 and ATM0902715), the National Oceanographic and Atmospheric Administration (Grants: NA07OAR4310060 and NA10OAR4310137), the Nataional Aeronautics and Space Administration (Grant: NNX09AF44G), and by the European Project Millennium.

Website Version Posted on June 15th, 2011