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NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data


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    fileIdentifier:  noaa-ocean-8750
    language:  eng; USA
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        organisationName:  NOAA World Data Service for Paleoclimatology
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                electronicMailAddress:  paleo@noaa.gov
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data
            date:  (CI_Date)
                date:  2008-04-09
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                  Anchor:  DOI doi:10.25921/c3ah-c727
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                code:  noaa-ocean-8750
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                code:  NCEI DSI 1200_01
            citedResponsibleParty:  (CI_ResponsibleParty)
                individualName:  Hodell, D.A.
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                individualName:  Hodell, D.A.
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                individualName:  Venz, K.A.
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                individualName:  Venz, K.A.
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        abstract:  This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of North Atlantic Ocean. The time period coverage is from 9000000 to 0 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
        purpose:  Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations.
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                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  paleo@noaa.gov
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            fileDescription:  Paleoclimatology - Paleoceanography
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        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Paleoclimate > Ocean/Lake Records
            keyword:  Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
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                    date:  2020-01-09
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            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleoceanography
            keyword:  earth science > paleoclimate > paleocean > carbon isotopes
            type:  (MD_KeywordTypeCode) theme
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                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
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                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
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            keyword:  What: delta 18O; Material: Cibicidoides sp.
            keyword:  What: depth at sample end; Material: null
            keyword:  What: age; Material: null
            keyword:  What: delta 18O; Material: Cibicidoides wuellerstorfi
            keyword:  What: depth; Material: null
            keyword:  What: delta 13C; Material: benthic foraminifer
            keyword:  What: delta 18O; Material: benthic foraminifer
            keyword:  What: delta 13C; Material: Cibicidoides sp.
            keyword:  What: delta 13C; Material: benthic foraminifer
            keyword:  What: depth at sample start; Material: null
            keyword:  What: delta 18O; Material: benthic foraminifer
            keyword:  What: delta 18O; Material: benthic foraminifer
            keyword:  What: delta 13C; Material: benthic foraminifer
            keyword:  What: delta 13C; Material: Cibicidoides kullenbergi
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                title:  Paleoenvironmental Standard Terms (PaST) Thesaurus
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            keyword:  Ocean > Atlantic Ocean > North Atlantic Ocean > ODP 982 > LATITUDE 57.517 > LONGITUDE -15.8665
            keyword:  Ocean > Atlantic Ocean > South Atlantic Ocean > ODP 704A > LATITUDE -46.88 > LONGITUDE 7.42
            keyword:  Ocean > Atlantic Ocean > North Atlantic Ocean > DSDP 607 > LATITUDE 41.000019 > LONGITUDE -32.950122
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            keyword:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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                            name:  Global Change Master Directory (GCMD) Keywords
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        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: Hodell, D.A.; Venz, K.A. (2008-04-09): NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c3ah-c727. Accessed [date].
        resourceConstraints:  Distribution Liability (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  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.
        resourceConstraints:  Use Liability (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  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.
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            otherConstraints:  None
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Late Neogene history of deepwater ventilation in the Southern Ocean
                date:  (CI_Date)
                    date:  2006
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  Hodell, D.A., and K. A. Venz-Curtis
                    role:  (CI_RoleCode) author
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                    organisationName:  Geochemistry, Geophysics, Geosystems
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                            linkage: https://doi.org/10.1029/2005GC001211
                            protocol:  HTTPS
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                            name:  Associated Reference published 2006
                            description:  Hodell, D.A., and K. A. Venz-Curtis, 2006: Late Neogene history of deepwater ventilation in the Southern Ocean. Geochemistry, Geophysics, Geosystems, 7, , 10.1029/2005GC001211
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        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            description:  Date Range: 9000000 cal yr BP to 0 cal yr BP;
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -32.950122
                eastBoundLongitude:  7.42
                southBoundLatitude:  -46.88
                northBoundLatitude:  57.517
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                  TimePeriod:
                    beginPosition:  -8998050
                    endPosition:  1950
        supplementalInformation:  ABSTRACT SUPPLIED BY ORIGINATOR: We compiled carbon isotope records from the North Atlantic, South Atlantic, and Pacific oceans to estimate changes in vertical and interbasinal δ13C gradients for the last 9 Myr. Benthic δ13C values of deep water in the South Atlantic decreased in a series of steps at ∼7, 2.75, and 1.55 Ma away from the North Atlantic and toward the Pacific. The benthic δ13C of intermediate water in the South Atlantic evolved differently from deep waters, resulting in an increase in the intermediate-to-deep δ13C gradient (Δ13CID). The Δ13CID increased in steps at ∼2.75 and 1.55 Ma, marking the development and intensification of a chemical divide in the Atlantic Ocean between well-ventilated intermediate water and poorly ventilated deep water. We suggest these changes in interbasinal and vertical gradients resulted from decreasing Northern Component Water and reduced ventilation of Southern Component Water (SCW). The latter was caused by several interrelated processes in Antarctic sources areas, including increased sea ice cover, enhanced surface water stratification, decreased Ekman-induced upwelling, and reduced vertical mixing across the thermocline. Because Antarctic surface water processes and deepwater ventilation rates ultimately influence atmospheric CO2 concentration, these processes may have acted as a positive feedback that contributed to the major cooling steps in late Neogene climate.
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                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.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                    linkage: https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/hodell2006/hodell2006.txt
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        maintenanceNote:  This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21