[Keyword='climate change']
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Northern Hemisphere Temperature Reconstruction for the Past Millennium
Entry ID:
NOAA_NCDC_PALEO_1999-014
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
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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: Location Keywords
Science Keywords
ISO Topic Category
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
Distribution
Distribution Media:
online ftp
Distribution Format:
ascii
Fees:
none
Personnel
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. Creation and Review Dates
DIF Creation Date:
2004-03-30
Last DIF Revision Date:
2012-08-31
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