Millennial Temperature Reconstructions: readme file
-----------------------------------------------------------------------
               World Data Center A- Paleoclimatology
-----------------------------------------------------------------------
NOTE: PLEASE CITE ORIGINAL REFERENCES WHEN USING THIS DATA!!!!!

CONTRIBUTORS: P.D. Jones, K.R. Briffa, T.P. Barnett, S.F.B Tett

NAME OF DATA SET:  Millennial Temperature Reconstructions

IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 1998-039

SUGGESTED DATA CITATION: P.D. Jones, K.R. Briffa, T.P. Barnett, 
and S.F.B Tett, 1998, Millennial Temperature Reconstructions.  
IGBP PAGES/World Data Center-A for Paleoclimatology 
Data Contribution Series #1998-039.  
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCE: P.D. Jones, K.R. Briffa, T.P. Barnett, and S.F.B. Tett, 1998, 
"High-resolution Palaeoclimatic Records for the last Millennium: Interpretation, 
Integration and Comparison with General Circulation Model Control-run Temperatures",
The Holocene 8, 1998, 455-471.

LAST UPDATE:  12/98 (Original receipt by WDC-A Paleo)
GEOGRAPHIC REGION: Northern & Southern Hemispheres
PERIOD OF RECORD: 1000-1991 A.D. 

LIST OF FILES: readme.jones1998.txt (this file), 
Jonesdata.txt (tab-delimited ASCII text), Jonesdata.xls (Microsoft Excel).

DESCRIPTION:
Temperature sensitive paleoclimatic multi-proxy data from 17 sites worldwide 
were used to generate thousand year long records of temperature for both hemispheres. 
Proxy types include tree rings, ice cores, corals, and historical documents.

Data Files: Jonesdata.txt and Jonesdata.xls contain the original series in 
normalised units as well as anomalies in Degreees C vs 1961-90 mean.

The 1961-90 anomalies are related to the normalised series as follows:
nh*0.521 - 0.1134
sh*0.608 - 0.2394

The numbers come from the mean and variance of the instrumental
data (summer, JJA in NH and DJF in SH) for the 1901-50 period.

Numbers after each are the # of proxies used in each year.