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Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA/WDS Paleoclimatology - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST

browse graphicPaleoclimatology - Paleoceanography
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 climate reconstructions|paleoceanography with a geographic location of North Atlantic Ocean. The time period coverage is from 21726 to -50 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Thornalley, D.J.R.; Elderfield, H.; McCave, I.N. (2014-05-21): NOAA/WDS Paleoclimatology - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/59sb-ah75. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-ocean-16491
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  • Native Format(s)
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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 Data Center Contact
NOAA World Data Service for Paleoclimatology
828-271-4800
paleo@noaa.gov
Coverage Description Date Range: 21726 cal yr BP to -50 cal yr BP;
Time Period -19776 to 2000
Spatial Bounding Box Coordinates
West: -19.536
East: -17.1344
South: 61.481667
North: 62.9755
Spatial Coverage Map
General Documentation
Associated Resources
  • Reconstructing North Atlantic deglacial surface hydrography and its link to the Atlantic overturning circulation
    • Associated Reference published 2011
      Thornalley, D.J.R., H. Elderfield, and I.N. McCave, 2011: Reconstructing North Atlantic deglacial surface hydrography and its link to the Atlantic overturning circulation. Global and Planetary Change, 79, 163-175, 10.1016/j.gloplacha.2010.06.003
Publication Dates
  • publication: 2014-05-21
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
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: Data collected by David J.R. Thornalley (Univ. of Cambridge); Principal Investigator: I. Nick McCave (Univ. of Cambridge); cruise CD-159, funded by UK RAPID program. Stable isotope values relative to VPDB standard, run in Godwin Laboratory, Univ. of Cambridge. Temperature calculated using Mg/Ca = B exp (0.1 × T). B = 0.794, 0.76 and 0.52 for G. bulloides, G. inflata and N. pachy. (s) respectively. RAPiD-10-1P: N. pachy. (s) and Cib. spp. isotope data originally presented in Thornalley, Elderfield & McCave, 2010, DOI:10.1029/2009PA001833. RAPiD-12-1K: Please cite Thornalley, Elderfield & McCave, Nature, 2009. For % sand and G. inflata d13C data, please cite Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. Vital effect of -0.24 applied to Melonis d18O data. Salinity calculated using Kim and O'Neil (1997) to obtain d18Osw, including a 0.6‰ offset for G. bulloides, and VPDB to SMOW conversion of 0.27‰; Converted to salinity using Schmidt and Legrande (2006) N. Atlantic d18Osw-S relationship; Also corrected for whole ocean d18O and salinity changes (1 per mil glacial-interglacial) scaled to Fairbanks (1989) sea-level curve. Core-top age assignment: The core-top was not lost; assume 0cm=2004AD, but account for top 2 cm well mixed by bioturbation. RAPiD-15-4P: All data except N. pachy.(s) originally presented in Thornalley, McCave & Elderfield, 2010, Paleoceanography, DOI:10.1029/2009PA001772. N. pachy. (s) isotope data originally presented in Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. d18Osw calculated using Kim and O'Neil (1997), including a -0.6‰ offset for G. bulloides. Note - no offset used for N. pachy.(s) contrary to manuscript, and VPDB to SMOW conversion of 0.27‰ "Ice-volume corrected" for whole ocean changes using Fairbanks (1989) sea-level curve, assuming a LGM to late Holocene shift of 1‰. Salinity calculated based on North Atlantic relation of LeGrande and Schmidt (2006) and also for N. pachyderma for mixing with a freshwater endmember RAPiD-17-5P: C. wuell. And IRD data originally presented in Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. d18Osw calculated using Kim and O'Neil (1997), including a 0.6‰ offset for G. bulloides, and VPDB to SMOW conversion of 0.27‰ "Ice-volume corrected" for whole ocean changes using Fairbanks (1989) sea-level curve, assuming a LGM to late Holocene shift of 1‰.
ABSTRACT SUPPLIED BY ORIGINATOR: Paired Mg/Ca–d18O measurements on multiple species of planktic foraminifera are combined with published benthic isotope records from south of Iceland in order to assess the role North Atlantic freshwater input played in determining the evolution of hydrography and climate during the last deglaciation. We demonstrate that Globigerina bulloides and Globorotalia inflata are restricted to intervals when warm Atlantic waters reached the area south of Iceland, and therefore Mg/Ca–d18O data from these species monitor changes in the temperature and seawater d18O signature of the northward inflow of Atlantic water to the area. In contrast, Neogloboquadrina pachyderma (sinistral) calcifies within local subpolar/polar waters and new Mg/Ca–d18O analyses on this species document changes in this water mass. We observe two major surface ocean events during Heinrich Stadial 1 (~ 17–14.7 ka): an early freshening of the Atlantic Inflow (~ 17–16 ka), and a later interval (16–14.7 ka) of local surface freshening, sea-ice formation and brine rejection that was associated with a further reduction in deep ocean ventilation. Centennial-scale cold intervals during the Bølling–Allerød (BA, 14.7–12.9 ka) were likely triggered by the rerouting of North American continental run-off during ice-sheet retreat. However, the relative effects of these freshwater events on deep ventilation and climate south of Iceland appear to have been modulated by the background climate deterioration. Two freshwater events occurred during the Younger Dryas cold interval (YD, 12.9–11.7 ka), both accompanied by a reduction in deep ventilation south of Iceland: an early YD freshening of the Atlantic Inflow and local subpolar/polar waters, and a late YD ice-rafted detritus event that was possibly related to brine formation south of Iceland. Based on our reconstructions, the strengthening of the Atlantic Meridional Overturning Circulation at the onset of BA and Holocene may have been promoted by the subsurface warming of subpolar/polar water, brine formation that drew warm saline Atlantic water northwards, and the high background salinity of the Atlantic Inflow.
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.
Dataset Citation
  • Cite as: Thornalley, D.J.R.; Elderfield, H.; McCave, I.N. (2014-05-21): NOAA/WDS Paleoclimatology - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/59sb-ah75. Accessed [date].
  • 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.
Cited Authors
  • Thornalley, D.J.R.
  • Elderfield, H.
  • McCave, I.N.
Originators
  • Thornalley, D.J.R.
  • Elderfield, H.
  • McCave, I.N.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Paleoclimate > Ocean/Lake Records
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > climate reconstructions|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 > climate reconstructions|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 > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > paleoceanography
  • 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 > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • 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 > climate reconstructions|paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > climate reconstructions|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 > paleoceanography
  • earth science > paleoclimate > paleocean > reconstruction
  • earth science > paleoclimate > paleocean > oxygen isotopes
  • earth science > paleoclimate > paleocean > geochemistry
  • earth science > paleoclimate > paleocean > carbon isotopes
  • Heinrich Events
  • Other Hydroclimate Reconstruction
  • Sea Surface Temperature Reconstruction
  • Younger Dryas
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: salinity; Material: sea surface
  • What: delta 18O; Material: null
  • What: delta 18O; Material: Melonis affinis
  • What: Neogloboquadrina pachyderma; Material: null
  • What: delta 18O; Material: delta 18O|magnesium/calcium|sea water
  • What: salinity; Material: delta 18O|magnesium/calcium|sea surface
  • What: depth at sample end; Material: null
  • What: depth at sample start; Material: null
  • What: sand; Material: sediment
  • What: magnesium/calcium; Material: Globigerina bulloides
  • What: sea surface temperature; Material: magnesium/calcium
  • What: depth at sample end; Material: null
  • What: age; Material: null
  • What: delta 18O; Material: Neogloboquadrina pachyderma sinistral
  • What: age; Material: null
  • What: delta 18O; Material: Globorotalia inflata
  • What: ice rafted debris; Material: dry sediment
  • What: delta 18O; Material: delta 18O|magnesium/calcium|sea water
  • What: magnesium/calcium; Material: Neogloboquadrina pachyderma sinistral
  • What: age; Material: null
  • What: magnesium/calcium; Material: Globorotalia inflata
  • What: salinity; Material: delta 18O|magnesium/calcium|sea surface
  • What: delta 18O; Material: delta 18O|magnesium/calcium|sea water
  • What: delta 18O; Material: Cibicidoides wuellerstorfi
  • What: delta 18O; Material: Neogloboquadrina pachyderma sinistral
  • What: delta 18O; Material: Globigerina bulloides
  • What: delta 18O; Material: Globigerina bulloides
  • What: delta 13C; Material: Globorotalia inflata
  • What: sea surface temperature; Material: magnesium/calcium
  • What: sea surface temperature; Material: magnesium/calcium
  • What: delta 18O; Material: delta 18O|magnesium/calcium|sea water
  • What: delta 18O; Material: Cibicidoides wuellerstorfi
  • What: delta 13C; Material: Cibicidoides wuellerstorfi
  • What: delta 18O; Material: null
  • What: notes; Material: null
  • What: salinity; Material: delta 18O|magnesium/calcium|sea surface
  • What: salinity; Material: delta 18O|magnesium/calcium|sea surface
  • What: depth at sample start; Material: null
  • What: age; Material: null
  • What: depth; Material: null
  • What: Neogloboquadrina pachyderma sinistral; Material: null
  • What: delta 18O; Material: Globorotalia inflata
  • What: number of samples; Material: null
  • What: delta 18O; Material: delta 18O|magnesium/calcium|sea water
  • What: depth; Material: null
  • What: delta 18O; Material: Melonis affinis
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Ocean > Atlantic Ocean > North Atlantic Ocean > RAPiD-10-1P > LATITUDE 62.9755 > LONGITUDE -17.5895
  • Ocean > Atlantic Ocean > North Atlantic Ocean > RAPiD-17-5P > LATITUDE 61.481667 > LONGITUDE -19.536
  • Ocean > Atlantic Ocean > North Atlantic Ocean > RAPiD-12-1K > LATITUDE 62.08 > LONGITUDE -17.82
  • Ocean > Atlantic Ocean > North Atlantic Ocean > RAPiD-15-4P > LATITUDE 62.2994 > LONGITUDE -17.1344
Use Constraints
  • Cite as: Thornalley, D.J.R.; Elderfield, H.; McCave, I.N. (2014-05-21): NOAA/WDS Paleoclimatology - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/59sb-ah75. Accessed [date].
  • 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.
  • 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.
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.
  • None
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.
Last Modified: 2023-09-01
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