Dataset Overview | National Centers for Environmental Information (NCEI)

SPECMAP Archive NO.1 - Climate Times Series, Downcore and Core-top Data

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The SPECMAP Archive No.1 was compiled by Brown University under the direction of A. Duffy and J. Imbrie with the assistance of A.C. Mix and A. Mcintyre, and funded by the National Science Foundation. The SPECMAP Archive No.1 contains climate times series of the past 400,000 years, and basic downcore and core-top data from which these time series were derived for 17 sediment cores from the Atlantic Ocean. Downcore records include (1) quantitative data on planktonic species and assemblages which reflect conditions in the surface waters of the Atlantic ocean; (2) measurements of 0-18, C-13 difference (planktic and benthic), and Cd/Ca. The age model used to transform each downcore record into a time series by correlation of its O-18 record with the published O-18 chronology of Imbrie et al. (1984) is given. Time series with uniformly spaced samples may be calculated by linear interpolation. The Archive No. 1 contains 101 files, including documentation and bibliographic information. The SPECMAR Archive No. 1 is available for direct ftp download from NCDC. The SPECMAP Archive No. 1 was originally submitted to NOAA's National Geophysical Data Center (NGDC) for archive and was subsequently transferred to NOAA's National Climatic Data Center (NCDC) Paleoclimatology Group for stewardship..
  • Cite as: Duffy, Andrew; Imbrie, John and Alan Mix. 1991: SPECMAP Archive NO.1 - Climate Times Series, Downcore and Core-top Data. First. NOAA National Centers for Environmental Information. Accessed [date].
  • ID not available.
gov.noaa.ngdc.mgg.geology:G00997
Download Data
  • Data files and documentation (download)
    Web page of information about the database including links to full documentation and free data download.
Distribution Formats
  • ASCII
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Marine Geology Data Manager
NOAA National Centers for Environmental Information
geology.info@noaa.gov
Coverage Description Global ocean floor
Time Period 1990-12-31 to 1990-12-31
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 53.933
S: -43.517
E: 160.483
W: -83.933
Spatial Coverage Map
General Documentation
  • Metadata Landing Page
    Web page of information about the database including links to full documentation and free data download.
Associated Resources
Publication Dates
  • publication: 1991-12-31
  • revision: 1991-12-31
Edition First
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency Not planned - Completed data set, no additions planned.
Supplemental Information
Data also available through the World Data Center for Paleoclimatrology
Purpose Paleoceanographic Research
Use Limitations
  • Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
Dataset Citation
  • Cite as: Duffy, Andrew; Imbrie, John and Alan Mix. 1991: SPECMAP Archive NO.1 - Climate Times Series, Downcore and Core-top Data. First. NOAA National Centers for Environmental Information. Accessed [date].
Cited Authors
  • Duffy, Andrew
    Brown University
  • Imbrie, John
    Lamont-Doherty Earth Observatory
  • Alan Mix
    Oregon State University
Publishers
  • NOAA National Centers for Environmental Information
Acknowledgments
  • Dr. Andrew Duffy, Brown University, Dr. John Imbrie, Lamont-Doherty Earth Observatory of Columbia University, Dr. Alan C. Mix, Oregon State University, and SPECMAP team members. The National Science Foundation (NSF).
Theme keywords Library of Congress Subject Headings
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
SeaDataNet Common Vocabularies
  • Marine geology
USGS Science Topics
  • Sea-floor characteristics
Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Paleoclimate > Ocean/Lake Records > Isotopes
  • Earth Science > Paleoclimate > Ocean/Lake Records > Radiocarbon
  • Earth Science > Paleoclimate > Ocean/Lake Records > Microfossils
  • Earth Science > Paleoclimate > Ocean/Lake Records > Oxygen Isotopes
  • Earth Science > Oceans > Marine Sediments
  • Earth Science > OCEANS > Marine Sediments > Stratigraphic Sequence
  • Earth Science > Paleoclimate > Ocean/Lake Records > Sediments
  • Earth Science > PALEOCLIMATE > Ocean/Lake Records > Stratigraphic Sequence
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • WDC/PALEOCLIMATOLOGY, BOULDER > World Data Center for Paleoclimatology, Boulder
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • In Situ Ocean-based Platforms > Ships
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • In Situ/Laboratory Instruments > Corers > Coring Devices
  • In Situ/Laboratory Instruments > Corers > Sediment Corers
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Geographic Region > Global Ocean
  • Vertical Location >Sea Floor
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • SPECMAP > Mapping Spectral Variability in Global Climate Project
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • Access to this dataset is unrestricted.
Other Constraints Cite as: Duffy, Andrew; Imbrie, John and Alan Mix. 1991: SPECMAP Archive NO.1 - Climate Times Series, Downcore and Core-top Data. First. NOAA National Centers for Environmental Information. Accessed [date].
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Lineage Statement Data originally submitted to NOAA's former National Geophysical Data Center (NGDC) then transferred to the former National Climatic Data Center (NCDC) Paleoclimatology for stewardship, both centers are now part of NOAA's National Centers for Environmental Information (NCEI). Processing and lineage prior to transmission to NGDC are unknown.
Processing Environment Native Dataset Environment: ASCII text
Source Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • In Situ/Laboratory Instruments
Platform
  • In Situ Ocean-based Platforms > SHIPS
Last Modified: 2020-04-21
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