noaa-ocean-34152 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2025-06-18 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Foraminifer Isotope Data (d15N, d13C, d18O) and Modeling of Nordic Seas Hydrography and Circulation during MIS 11 2021-09-21 publication doi:10.25921/xseg-d327 noaa-ocean-34152 NCEI DSI 1200_02 NCEI DSI 1200_01 Doherty, J.M. originator Doherty, J.M. author Ling, Y.F. originator Ling, Y.F. author Not, C. originator Not, C. author Erler, D. originator Erler, D. author Bauch, H.A. originator Bauch, H.A. author Paytan, A. originator Paytan, A. author Thibodeau, B. originator Thibodeau, B. author NOAA National Centers for Environmental Information publisher tableDigital 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 420000 to 383800 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. 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. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleocean > reconstruction earth science > paleoclimate > paleocean > oxygen isotopes earth science > paleoclimate > paleocean > nitrogen isotopes earth science > paleoclimate > paleocean > carbon isotopes theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Atmospheric and Oceanic Circulation Patterns Reconstruction theme What: delta 15N; Material: Neogloboquadrina pachyderma What: age; Material: null What: delta 13C; Material: Turborotalita quinqueloba What: age; Material: null What: Atlantic Meridional Overturning Circulation Index; Material: null What: age; Material: null What: Atlantic Meridional Overturning Circulation Index; Material: null What: delta 13C; Material: Neogloboquadrina pachyderma What: delta 18O; Material: Turborotalita quinqueloba What: age; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Ocean > Atlantic Ocean > North Atlantic Ocean > MD99-2277 > LATITUDE 69.25 > LONGITUDE -6.32 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Doherty, J.M.; Ling, Y.F.; Not, C.; Erler, D.; Bauch, H.A.; Paytan, A.; Thibodeau, B. (2021-09-21): NOAA/WDS Paleoclimatology - Foraminifer Isotope Data (d15N, d13C, d18O) and Modeling of Nordic Seas Hydrography and Circulation during MIS 11. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/xseg-d327. Accessed [date]. otherRestrictions 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. otherRestrictions 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 otherRestrictions None otherRestrictions 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. 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Freshening, stratification and deep-water formation in the Nordic Seas during Marine Isotope Stage 11 2021 publication Doherty, John M.; Ling, Yuet F.; Not, Christelle; Erler, Dirk; Bauch, Henning A.; Paytan, Adina; Thibodeau, Benoit author Quaternary Science Reviews publisher https://doi.org/10.1016/j.quascirev.2021.107231 HTTPS Web Browser Associated Reference published 2021 Doherty, John M.; Ling, Yuet F.; Not, Christelle; Erler, Dirk; Bauch, Henning A.; Paytan, Adina; Thibodeau, Benoit, 2021: Freshening, stratification and deep-water formation in the Nordic Seas during Marine Isotope Stage 11. Quaternary Science Reviews, 272, , 10.1016/j.quascirev.2021.107231 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 420000 cal yr BP to 383800 cal yr BP; -6.32 -6.32 69.25 69.25 Study Coordinates 69.25 -6.32 -418050 -381850 STUDY NOTES: d15N, d13C and d18O records of Nordic Seas planktic foraminifers during MIS 11; data-constrained model results of North Atlantic circulation during MIS 11 Provided Keywords: Atlantic meridional overturning circulation, Nordic Seas, Marine isotope stage 11, Nitrogen isotopes, Stable isotope geochemistry, Paleoceanography ABSTRACT SUPPLIED BY ORIGINATOR: The Atlantic meridional overturning circulation (AMOC) is a critical element of Earth’s climate system and it is currently weakening. While this weakening is frequently explained by freshwater-driven disruptions to ocean convection, uncertainties about the impacts of prolonged freshening limit our capacity to predict its future state. For example, during the warm and unusually long marine isotope stage (MIS) 11 interglacial, ~424 to 374 ka, several lines of evidence suggest that a strong AMOC persisted concomitant with fresher-than-present conditions in the Nordic Seas, challenging our current understanding of convection. Here, we present new foraminifer-bound nitrogen isotope data along with multiple additional geochemical reconstructions of upper-ocean hydrography in the Nordic Seas during this anomalous interval. Our data suggest that a weak summer stratification was driven by the prolonged upper-ocean accumulation of freshwater beginning at the onset of the climatic optimum, ~410 to 407 ka, which could have helped precondition the region for convection. A box model constrained by paleo-proxy data additionally suggests that the density gradient between the subpolar North Atlantic and Nordic Seas was favorable for the onset of convection in the Nordic Seas during the climatic optimum. It is thus likely that the Nordic Seas became a locus of convection around this time. Enhanced northern-hemisphere heating driven by convection in the Nordic Seas may have been important for delaying glacial conditions, thereby driving the extended warming characteristic of MIS 11. Such findings may also be relevant for near-future changes under a relatively fresher high-latitude North Atlantic. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor 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. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/xseg-d327 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/34152 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/paleocean/atlantic/doherty2021/doherty2021-md99-2277-turbo.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleocean/atlantic/doherty2021/doherty2021-md99-2277-d15n.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleocean/atlantic/doherty2021/doherty2021-md99-2277-d13c-pachy.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleocean/atlantic/doherty2021/doherty2021-md99-2277-amoc.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21