Northern Hemisphere Temperature Reconstruction for the Past Millennium
Entry ID: NOAA_NCDC_PALEO_1999-014

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Summary
Abstract: Abstract (from the online documentation):
Building on recent studies, we attempt hemispheric temperature reconstructions
with proxy data networks for the past millennium. We focus not just on the
reconstructions, but the uncertainties therein, and important caveats. Though
expanded uncertainties prevent decisive conclusions for the period prior to AD
1400, our results suggest that the latter 20th century is anomalous in the
context of at least the past millennium. The 1990s was the warmest decade, and
1998 the warmest year, at moderately high levels of confidence. The 20th
century warming counters a millennial-scale cooling trend which is consistent
with long-term astronomical forcing.
Related URL
Description: Access to 1999-014 data sets
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: 0.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: Michael E. Mann, Raymond S. Bradley, and Malcolm K. Hughes
Dataset Title: Northern Hemisphere Temperature Reconstruction for the Past Millennium
Dataset Series Name: IGBP PAGES/WDC CONTRIBUTION SERIES NUMBER: 1999-014
Dataset Release Date: March 1999
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 1999-014
Other Citation Details: NOAA/NCDC Paleoclimatology Program
Online Resource: http://www.ncdc.noaa.gov/paleo/pubs/mann_99.html
Temporal Coverage
Start Date: 1000-01-01
Stop Date: 1998-12-31
Paleo Temporal Coverage
Paleo Start Date: 1000 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:
Data Set Progress
COMPLETE
Originating Center
Data Center
World Data Center for Paleoclimatology, Boulder Supplemental Info
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA
Distribution
Distribution Media: online ftp
Distribution Format: ascii
Fees: none
Personnel
Role: INVESTIGATOR
Email: mann at psu.edu
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Publications/References
Michael E. Mann, Raymond S. Bradley, and Malcolm K. Hughes, 1999, Northern
Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties,
and Limitations, Geophysical Research Letters Vol. 26 , No. 6 , p. 759, March
15, 1999.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2004-03-30
Last DIF Revision Date: 2012-08-31
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