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Northern Hemisphere Temperature Reconstructions from Tree-Ring Chronologies and Major Volcanic Eruptions, WDC Paleoclimatology

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Abstract: This data set consists of two time series representative of Northern Hemisphere
growing season (April-September) temperatures for the period 1400-1994. The
data were derived from means of 383 maximum latewood density tree-ring
chronologies from the northern boreal forest. Both time series are given in
dimensionless standardized anomalies (from the 1881-1960 mean), and one has
also been re-scaled to give an estimate of Northern Hemisphere land and marine
temperature anomalies.
The data suggest that large explosive volcanic eruptions produced different
extents of Northern Hemisphere cooling during the past 600 years (Briffa, et
al., 1998). The largest volcanic explosions since 1400AD are also included
giving the name of the volcano, latitude/longitude and Volcanic Explosive Index
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: 0.0   E: 0.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: Briffa, K.R., P.D. Jones, F.H. Schweingruber, T.J. Osborn
Dataset Title: Norhern Hemisphere Temperature Reconstructions
Dataset Series Name: IGBP PAGES/WDC Paleoclimatology Contribution #98-022
Dataset Release Date: 1998
Dataset Release Place: NOAA/NCDC Paleoclimatology Program, Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center Paleoclimatology
Version: July 2003
Issue Identification: 1998-022
Online Resource:
Temporal Coverage
Start Date: 1400-01-01
Stop Date: 1994-12-31
Paleo Temporal Coverage
Paleo Start Date: 600 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:
Data Resolution
Temporal Resolution: Annual
Data Set Progress
Originating Center
Data Center
World Data Center for Paleoclimatology, Boulder Supplemental Info
Data Center URL:

Data Center Personnel
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at
Contact Address:
World Data Center for Paleoclimatology
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA
Distribution Media: online ftp
Distribution Size: 24 kb
Distribution Format: ascii
Fees: none
Email: K.Briffa at
Contact Address:
Climatic Research Unit
School of Environmental Sciences
University of East Anglia
Norwich NR4 7TJ
View entire list
Briffa, K.R., P.D. Jones, F.H. Schweingruber, and
T.J. Osborn. 1998. "Influence of volcanic eruptions on Northern
Hemisphere summer temperature over the past 600 years", Nature, 393,

Simkin, T., and L. Siebert, Volcanoes of the World: A Regional
Directory, Gazetteer, and Chronology of Volcanism During the
Last 10,000 Years, 2nd ed., 349 pp., Geoscience Press, Tucson,
Ariz., 1994.
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2016-11-18
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