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Global Change Master Directory (GCMD)
Northern Hemisphere Surface Temperature Reconstruction Sensitivity Comparisons
Entry ID: NOAA_NCDC_PALEO_2005-057

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Summary
Abstract: Results are presented from a set of experiments designed to investigate factors
that may influence proxy-based reconstructions of large-scale temperature patterns
in past centuries. The factors investigated include 1) the method used to
assimilate proxy data into a climate reconstruction, 2) the proxy data network used,
3) the target season, and 4) the spatial domain of the reconstruction. Estimates of
hemispheric-mean temperature are formed through spatial averaging of reconstructed
temperature patterns that are based on either the local calibration of proxy and
instrumental data or a more elaborate multivariate climate field reconstruction
approach. The experiments compare results based on the global multiproxy dataset
used by Mann and coworkers, with results obtained using the extratropical Northern
Hemisphere (NH) maximum latewood tree-ring density set used by Briffa and coworkers.
Mean temperature reconstructions are compared for the full NH (Tropics and extratropics,
land and ocean) and extratropical continents only, with varying target seasons
(cold-season half year, warm-season half year, and annual mean). The comparisons
demonstrate dependence of reconstructions on seasonal, spatial, and methodological
considerations, emphasizing the primary importance of the target region and seasonal
window of the reconstruction. The comparisons support the generally robust nature of
several previously published estimates of NH mean temperature changes in past centuries
and suggest that further improvements in reconstructive skill are most likely to arise
from an emphasis on the quality, rather than quantity, of available proxy data.

Related URL
Link: GET DATA
Description: Access to data files


Link: VIEW RELATED INFORMATION
Description: Access to documentation

Geographic Coverage
 N: 90.0 S: 0.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Creator: Rutherford, S., M.E. Mann, T.J. Osborn, R.S. Bradley, K.R. Briffa, M.K. Hughes, and P.D. Jones
Dataset Title: Northern Hemisphere Surface Temperature Reconstruction Sensitivity Comparisons
Dataset Series Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2005-057
Dataset Release Date: August 2005
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 2005-057
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/rut...


Temporal Coverage
Start Date: 1400-01-01
Stop Date: 1971-12-31


Location Keywords
GEOGRAPHIC REGION > NORTHERN HEMISPHERE


Science Keywords
BIOSPHERE >VEGETATION >TREE RINGS    [Definition]
PALEOCLIMATE >LAND RECORDS >TREE RINGS    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >SEA SURFACE TEMPERATURE RECONSTRUCTION    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Project
PAGES >Past Global Changes, IGBP    [Information]


Keywords
tree-rings
surface temperature reconstruction
multiproxy


Data Set Progress
COMPLETE


Originating Center
NOAA/NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/
Dataset ID: 2005-057

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: ftp
Distribution_Format: text, excel
Fees: none


Personnel
SCOTT RUTHERFORD
Role: INVESTIGATOR
Email: rutherfo at katy.gso.uri.edu


MICHAEL E. MANN
Role: INVESTIGATOR
Email: mann at psu.edu


TIM J. OSBORN
Role: INVESTIGATOR
Contact Address:
Climatic Research Unit
School of Environmental Sciences
University of East Anglia
Norwich NR4 7TJ
Country: UNITED KINGDOM


RAYMOND S. BRADLEY
Role: INVESTIGATOR
Email: rbradley at geo.umass.edu
Contact Address:
Department of Geosciences
University of Massachusetts
City: Amherst
Province or State: Massachusetts
Postal Code: 01003
Country: USA


KEITH R. BRIFFA
Role: INVESTIGATOR
Email: K.Briffa at uea.ac.uk
Contact Address:
Climatic Research Unit
School of Environmental Sciences
University of East Anglia
Norwich NR4 7TJ
Country: UNITED KINGDOM


MALCOLM K. HUGHES
Role: INVESTIGATOR
Email: mhughes at ltrr.arizona.edu
Contact Address:
School of Natural Resources
325 Biosciences East
City: Tucson
Province or State: AZ
Postal Code: 85721-0077
Country: USA


PHIL D. JONES
Role: INVESTIGATOR
Email: p.jones at uea.ac.uk
Contact Address:
Climatic Research Unit
University of East Anglia
Norwich
NR4 7TJ
Country: UNITED KINGDOM


Publications/References
Rutherford, S., M.E. Mann, T.J. Osborn, R.S. Bradley, K.R. Briffa, M.K. Hughes, and P.D. Jones. 2005. Proxy-Based Northern Hemisphere Surface Temperature Reconstructions: Sensitivity to Method, Predictor Network, Target Season, and Target Domain. Journal of Climate, Vol. 18, No. 13, pp. 2308-2329, July 2005. doi: 10.1175/JCLI3351.1
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2007-06-26
Last DIF Revision Date: 2017-08-24



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