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Global Change Master Directory (GCMD)
SPECMAP Project; Paleoclimate Data, NOAA/NCDC/WDC Paleoclimatology
Entry ID: EARTH_LAND_NGDC_PALEOCL_SPECMAP


Summary
Abstract: The SPECMAP paleoclimate archives at NOAA/NCDC World Data Center for
Paleoclimatology consist of four (4) archives:

ARCHIVE 1 contains 101 SPECMAP files, including planktonic counts and
isotope values, age and sea surface temperature models, and SST
estimates. These data were compiled by J. Imbrie and A. Duffy at
Brown University for the SPECMAP project. This archive, prepared as
part of the NSF-funded SPECMAP Project, contains climatic time series
of the past 400,000 years, as well as basic downcore and core-top data
from which these time series are derived.

The O-18 chronologies of Imbrie et al. (1984) and Martinson et al.
(1987) are given for reference, as well as orbital time series taken
from the work of Berger (1978a,b).

Also archived are N. G. Kipp's Atlantic core-top foraminiferal data
and SST equations FA20 and UW7 derived from them by procedures
described in Kipp (1976). FA20 is used to derive SST estimates for
cores V25-21, V30-49, V25-59, V25-56, V30-40, RC24-16, V22-174, and
RC12-294. Equation UW7, designed for upwelling areas in the southeast
Atlantic is used to estimate temperature variations in RC13-228.

Data and models archived here are the basis for the paleoclimatic time
series analyzed in 'Oceanic Response to Orbital Forcing in the Late
Quaternary: Observational and Experimental Strategies', by J. Imbrie,
A. McIntyre, and A. C. Mix. in 'Climate and Geosciences, A Challenge
for Science snd Society in the 21st Century', A. Berger,
S. H. Schneider, and J.-C. Duplessy, eds., D. Reidel Publishing
Company. Table 2 gives the parameters of time series analyzed in this
paper.

Parts of this archive are referenced in 'Surface water response of the
equatorial Atlantic Ocean to orbital forcing' by McIntyre et al.,
1989, Paleoceanography, v. 4, p. 19-55.

Many of the data and models in this archive have been generated as
part of the SPECMAP project. Other data sources are listed in Table 1
in the printed memo which accompanies this archive. These include
unpublished data of T. J. Crowley, J. D. Hays, N. G. Kipp,
A. McIntyre, A. C. Mix, W. F. Ruddiman, and N. J. Shackleton.
For more information, see:

SPECMAP Archive #2 contains 70 files including planktonic counts and
isotope values, age and sea surface temperature models, and SST
estimates. These data were compiled by J. Imbrie et al, and published
as:'On the structure and origin of major glaciation cycles.
1. Linear responses to Milankovitch forcing' Paleoceanography, Dec,
1992 (Imbrie et al.,1992).
For more information, see:

SPECMAP Archive #3 contains 10 files represent analytical results and
data which formed the basis for the discussion of the Devils Hole
calcite record, DH-11, in the original reference: J. Imbrie,
A. C. Mix, and D. G. Martinson, 1993, Milankovitch Theory Viewed from
Devils Hole, NATURE, May, 1993.
For more information, see:

SPECMAP Archive #4 contains 47 files of the time series appearing in
'On the Structure and Origin of Major Glaciation Cycles: part 2',
Imbrie et al., PALEOCEANOGRAPHY, Dec., 1993 (hereafter part 2). If a
time series is contained in SPECMAP Archive 2 it is not repeated here.
For more information, see:

A version of SPECMAP Archive #1 is available at cost from NCAR:

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

Data Set Citation
Dataset Creator: J. Imbrie, A. Duffy, et al , Brown University
Dataset Title: SPECMAP Archive #1
Dataset Release Date: February 1990
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Version: September 1994 update
Issue Identification: IGBP PAGES/WDC Data Contribution Series # 90-001
Online Resource: http://www.ncdc.noaa.gov/paleo/paleocean.html

Dataset Creator: J. Imbrie, et al., Brown University
Dataset Title: SPECMAP Archive #2
Dataset Release Date: December 1992
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: IGBP PAGES/WDC Data Contribution Series # 92-017
Online Resource: http://www.ncdc.noaa.gov/paleo/paleocean.html

Dataset Creator: J. Imbrie, et al., Brown University
Dataset Title: SPECMAP Archive #3
Dataset Release Date: September 1993
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: IGBP PAGES/WDC Data Contribution Series # 93-023
Online Resource: http://www.ncdc.noaa.gov/paleo/paleocean.html

Dataset Creator: John Imbrie, Angeline Duffy, Brown University
Dataset Title: SPECMAP Archive #4
Dataset Release Date: November 1993
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: IGBP PAGES/WDC Data Contribution Series # 93-031
Online Resource: http://www.ncdc.noaa.gov/paleo/paleocean.html


Paleo_Temporal_Coverage
Paleo Start Date: 400,000 yb
Paleo Stop Date: 0 ybp
Chrono Unit:


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Science Keywords
ATMOSPHERE >ATMOSPHERIC RADIATION >RADIATIVE FORCING >MILANKOVITCH CYCLES    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SOLAR RADIATION    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SUNSHINE >SOLAR INSOLATION    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >PLANKTON    [Definition]
BIOSPHERE >ECOSYSTEMS >MARINE ECOSYSTEMS    [Definition]
BIOSPHERE >ECOSYSTEMS >MARINE ECOSYSTEMS >BENTHIC    [Definition]
BIOSPHERE >ECOSYSTEMS >MARINE ECOSYSTEMS >PELAGIC    [Definition]
OCEANS >OCEAN CHEMISTRY >OXYGEN    [Definition]
OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE >SST    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >MICROFOSSILS >PLANKTON    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >OXYGEN ISOTOPES    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >PLANKTON >ZOOPLANKTON    [Definition]


Project
IGBP >International Geosphere-Biosphere Programme    [Information]
ESIP >Earth Science Information Partners Program    [Information]
PAGES >Past Global Changes, IGBP    [Information]
SPECMAP >Mapping Spectral Variability in Global Climate Project    [Information]


Keywords
C-13
CD/CA
ICE
INSOLATION
ISOTOPES
O-18
ORBITAL PARAMETERS
OXYGEN ISOTOPE
PALEOCEANOGRAPHY
PALEOCLIMATE
PLANKTON
SEA SURFACE TEMPERATURES
SNOW
SST
TREE-RINGS
Milankovitch Cycles
glaciation cycles


Data Set Progress
COMPLETE


Originating Center
NGDC


Data Center
Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research    [Information]
Data Center URL: https://rda.ucar.edu/
Dataset ID: ds863.0

Data Center Personnel
Name: RDA HELP DESK
Phone: (303)-497-1231
Fax: (303)-497-1291
Email: rdahelp at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.

World Data Center for Paleoclimatology, Boulder    [Information]
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 - available via anonymous FTP
Fees: none


Personnel
JOHN IMBRIE
Role: INVESTIGATOR
Phone: 401-863-3142
Contact Address:
Dept. Geological Sciences
Brown University
City: Providence
Province or State: RI
Postal Code: 02912
Country: USA


Publications/References
Imbrie, J., McIntyre, A. and Mix, A.C. 'Oceanic Response to Orbital
Forcing in the Late Quaternary: Observational and Experimental Strategies'. 1989. In 'Climate and Geosciences, A Challenge for Science snd Society in the 21st Century', A. Berger, S. H. Schneider, and J.-C. Duplessy, eds., D. Reidel Publishing Company.

Imbrie et al., 'On the structure and origin of major glaciation cycles. 1. Linear responses to Milankovitch forcing'. Paleoceanography, Dec, 1992).

Imbrie et al., 'On the Structure and Origin of Major Glaciation Cycles: part 2', Paleoceanography, Dec., 1993.

McIntyre, A. et al. 'Surface water response of the equatorial Atlantic Ocean to orbital forcing' 1989, Paleoceanography, v.4, p. 19-55.

J. Imbrie, A.C. Mix, and D.G. Martinson, 1993, Milankovitch Theory Viewed from Devils Hole, Nature, May, 1993.

J. Imbrie, et al., The orbital theory of Pleistocene climate: Support
from a revised chronology of the marine O-18 record, in 'Milankovitch
and Climate, Part 1', edited by A.Berger et al.,1984.
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
Last DIF Revision Date: 2017-08-24



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