***NOTE: The data up to AD 1850 are the EIV reconstructions;
***      the data from AD 1850-2006 are the instrumental record.

eivrecondescription.xls: describes the *_smxx files, and which 
centuries passed validation.  (** Updated 12 October 2009 to clarify length of
reconstruction)

*_smxx: the EIV reconstructions

*_eiv_composite.mat: Composite EIV reconstructions and composite 2-sigma 
   uncertainties for NH, SH, and global, for both Land only (CRU) and Land+Ocean (HAD) 
   experiments.

*_eiv_composite.csv: text version of the above files; columns are year, eiv
composite, 2-sigma uncertainty

Updated 18 March 2009 to clarify the level of uncertainties presented.
Updated 12 October 2009 to clarify the contents of the files.