noaa-ocean-19873 Peru Margin Temperature Reconstructions and Stable Isotope and Trace Metal Data During the Holocene Kalansky, J.; Rosenthal, Y.; Herbert, T.D.; Bova, S.C.; Altabet, M.A. Peru Margin Temperature Reconstructions and Stable Isotope and Trace Metal Data During the Holocene 2016-03-10 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/19873 Investigator J. Kalansky Investigator Y. Rosenthal Investigator T.D. Herbert Investigator S.C. Bova Investigator M.A. Altabet earth science paleoclimate paleoceanography delta 18O,Neogloboquadrina dutertrei,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography iron/calcium,Uvigerina sp.,null,micromole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Uvigerina sp.,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,Uvigerina sp.,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography aluminum/calcium,Neogloboquadrina dutertrei,null,micromole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography iron/calcium,Neogloboquadrina dutertrei,null,micromole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography aluminum/calcium,Uvigerina sp.,null,micromole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Neogloboquadrina dutertrei,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,subthermocline; using N.dutertrei earth science paleoclimate climate reconstructions|paleoceanography sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,bottom water; using Uvigerina sp. earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography magnesium/calcium,Neogloboquadrina dutertrei,null,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography magnesium/calcium,Uvigerina sp.,null,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean trace metals in carbonates earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean carbon isotopes earth science paleoclimate paleocean reconstruction geoscientificInformation Other Hydroclimate Reconstruction Sea Surface Temperature Reconstruction 10606 cal yr BP 1092 cal yr BP Complete -3.749167 -3.749167 -81.134167 -81.134167 -370 -370 Ocean Pacific Ocean Eastern Pacific Ocean KNR195-5 CDH23>LATITUDE -3.749167>LONGITUDE -81.134167 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 Kalansky, J., Y. Rosenthal, T. Herbert, S. Bova, and M. Altabet 2015 Earth and Planetary Science Letters 424 158-167 10.1016/j.epsl.2015.05.013

Temperature reconstructions from a shallow core (375 m) from the Peru Margin are used to test the influence of Subantarctic Mode Water (SAMW) on the eastern equatorial Pacific (EEP) thermostad and thus the effect of southern high latitude climate on interior ocean heat content (OHC). Temperature estimates, based on Mg/Ca measurements of planktonic and benthic foraminifera (Neogloboquadrina dutertrei and Uvigerina spp., respectively) show higher temperatures in the early Holocene, a cooling of ∼2◦ by 8 kyr B.P. and after relatively stable temperatures to the present. The temperature signal is similar in direction and timing to a rather robust Holocene climate signal from the southern high latitudes suggesting it originated there and was advected to the core site in the EEP. Based on the N. dutertrei and Uvigerina Mg/Ca temperature and δ13C records we conclude that SAMW acted as a conduit transporting the southern high latitude climate to the interior of the equatorial Pacific. We propose that the early Holocene warmth is related to a southward migration of the Subtropical Front, which enhanced the influence of warm subtropical water in the region of SAMW formation and was then transported to the EEP thermostad. The early Holocene warmth recorded in the EEP thermostad has a muted sea surface temperature expression indicating this mechanism is important for sequestering heat in the ocean interior. STUDY NOTES: Provided Keywords: Peru Margin, 10-1Ky, N. dutertrei and Uvigerina d18O, d13C and trace metal data.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kalansky2015/kalansky2015.txt Formatted Text File; KNR195-5 CDH23 Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11