noaa-ocean-5593 Subpolar North Atlantic (ODP984) Holocene Planktic d18O and Mg/Ca Data Came, R.E.; Oppo, D.W.; McManus, J.F. Subpolar North Atlantic (ODP984) Holocene Planktic d18O and Mg/Ca Data 2007-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/5593 Investigator R.E. Came Investigator D.W. Oppo Investigator J.F. McManus earth science paleoclimate paleoceanography delta 18O,Neogloboquadrina pachyderma dextral,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography magnesium/calcium,Neogloboquadrina pachyderma dextral,null,dimensionless,null,paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null earth science paleoclimate paleoceanography weight,foraminifer,null,microgram,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean trace metals in carbonates earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean reconstruction earth science paleoclimate paleocean population abundance earth science paleoclimate paleocean age control geoscientificInformation Sea Surface Temperature Reconstruction 11099 14C yr BP 446 14C yr BP 13008 cal yr BP 461 cal yr BP Complete 61.43 61.43 -24.08 -24.08 -1648 -1648 Ocean Atlantic Ocean North Atlantic Ocean ODP 984>LATITUDE 61.43>LONGITUDE -24.08 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Came, R.E., D.W. Oppo, and J.F. McManus. 2007. Amplitude and timing of temperature and salinity variability in the subpolar North Atlantic over the past 10 k.y. Geology, 35(4), 315ŋ318.

Paired planktic foraminiferal {delta}18O and Mg/Ca data reveal trends of increasing temperatures (~3 °C) and salinities in the subpolar North Atlantic over the course of the Holocene, which were punctuated by abrupt events. The trends likely reflect an insolation-forced northward retreat of the boundary between polar and North Atlantic subsurface waters. The superimposed variability does not appear to be periodic, but tends to recur within a broad millennial band. The records provide convincing evidence of open-ocean cooling (nearly 2 °C) and freshening during the 8.2 ka event, and suggest similar conditions at 9.3 ka. However, the two largest temperature oscillations in our record (~2 °C) occurred during the past 4 k.y., suggesting a recent increase in temperature variability relative to the mid-Holocene, perhaps in response to neoglaciation, which began at about this time.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp984-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/came2007 USA/NOAA DIF Version 9.8.4 2019-06-07 2019-06-07