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Optimal Surface Temperature Reconstructions Using Terrestrial Borehole Data, WDC Paleoclimatology
Entry ID: NOAA_NGDC_PALEO_MANN2003

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Summary

Abstract: This data is an optimal Northern Hemisphere mean surface temperature
reconstruction from terrestrial borehole temperature profiles spanning
the past five centuries. The pattern of borehole ground surface
temperature (GST) reconstructions displays prominent discrepancies
with instrumental surface air temperature (SAT) estimates during the
20th century, suggesting the presence of a considerable amount of
noise and/or bias in any underlying spatial SAT signal. The vast
majority of variance in the borehole dataset is efficiently retained
by its two leading eigenvectors. A sizable share of the variance in
the first eigenvector appears to be associated with non-SAT related
bias in the borehole data. A weak but detectable SAT signal appears to
be described by a combination of the first two
eigenvectors. Exploiting this eigendecomposition, application of
optimal signal estimation methods yields a hemispheric borehole SAT
reconstruction that is largely consistent with instrumental data
available in past centuries, and is indistinguishable in its major
features from several published long-term temperature estimates based
on both climate proxy data and model simulations.

Related URL

Link: GET DATA
Description: Access to data and documentation

Link: GET DATA
Description: Access to additional borehole data including U. Michigan borehole
temperature database

Geographic Coverage

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

Data Set Citation

Dataset Originator/Creator: Mann, M.E., S. Rutherford, R.S. Bradley, M. K. Hughes, and F. T. Keimig
Dataset Title: Optimal Surface Temperature Reconstructions Using Terrestrial Borehole Data
Dataset Release Date: April 2003
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center Paleoclimatology
Issue Identification: IGBP PAGES/WDC Paleoclimatology Contribution #2003-020
Other Citation Details: NOAA/NCDC Paleoclimatology Program, Boulder CO, USA
Online Resource: http://www.ncdc.noaa.gov/paleo/pubs/mann2003/mann2003.html

Temporal Coverage

Start Date: 1000-01-01

Paleo_Temporal_Coverage

Paleo Start Date: 1000 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:

Location Keywords

GEOGRAPHIC REGION > NORTHERN HEMISPHERE

Science Keywords

ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]

ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE AIR TEMPERATURE    [Definition]

LAND SURFACE >LAND TEMPERATURE >LAND SURFACE TEMPERATURE    [Definition]

PALEOCLIMATE >LAND RECORDS >STRATIGRAPHIC SEQUENCE    [Definition]

SOLID EARTH >GEOTHERMAL DYNAMICS >GEOTHERMAL TEMPERATURE    [Definition]

PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >AIR TEMPERATURE RECONSTRUCTION    [Definition]

PALEOCLIMATE >LAND RECORDS >BOREHOLES    [Definition]

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION

Platform

GROUND-BASED OBSERVATIONS [Information]

Project

IGAC >International Global Atmospheric Chemistry Project, IGBP    [Information]

IGBP >International Geosphere-Biosphere Programme    [Information]

PAGES >Past Global Changes, IGBP    [Information]

Access Constraints

None

Use Constraints

None

Keywords

borehole temperatures

ground surface temperature

temperature anomalies

temperature reconstructions

Data Set Progress

IN WORK

Originating Center

NOAA/NCDC

Data Center

World Data Center for Paleoclimatology, Boulder [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/
Dataset ID: Data Contribution Series #2003-020

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, WWW
Distribution_Format: ascii
Fees: none

Personnel

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

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

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

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

FRANK T. KEIMIG
Role: INVESTIGATOR
Email: frank at geo.umass.edu
Contact Address:
Department of Geosciences
University of Massachusetts
City: Amherst
Province or State: Massachusetts
Postal Code: 01003
Country: USA

Publications/References

Mann, M.E., S. Rutherford, R.S. Bradley, M. K. Hughes, and
F. T. Keimig, 2003, Optimal Surface Temperature Reconstructions Using
Terrestrial Borehole Data, JGR Atmospheres, Vol. 108 No. D7, 03 April
2003 doi: 10.1029/2002JD002532.

Creation and Review Dates

DIF Creation Date: 2003-04-08

Last DIF Revision Date: 2012-08-31

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