noaa-ocean-23373 Garrison Basin, Gulf of Mexico d18O and Mg/Ca in three multicores, and stacked SST/d18Osw/SSS reconstructions spanning the past 4.4 kyrs Thirumalai, K.; Quinn, T.M.; Okumura, Y.; Richey, J.N.; Partin, J.W.; Poore, R.Z.; Moreno-Chamarro, E. Garrison Basin, Gulf of Mexico d18O and Mg/Ca in three multicores, and stacked SST/d18Osw/SSS reconstructions spanning the past 4.4 kyrs 2018-02-05 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23373 Investigator K. Thirumalai Investigator T.M. Quinn Investigator Y. Okumura Investigator J.N. Richey Investigator J.W. Partin Investigator R.Z. Poore Investigator E. Moreno-Chamarro earth science paleoclimate climate reconstructions|paleoceanography delta 18O,delta 18O|magnesium/calcium|sea water,percentile,per mil VSMOW,annual,climate reconstructions|paleoceanography,null,null,N,68th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|magnesium/calcium|sea surface,null,practical salinity unit,annual,climate reconstructions|paleoceanography,null,null,N,See Thirumalai et al. 2018 for inversion equations and details; stacked record; based on Globigerinoides ruber white earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|magnesium/calcium|sea surface,percentile,practical salinity unit,annual,climate reconstructions|paleoceanography,null,null,N,32nd percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|magnesium/calcium|sea surface,percentile,practical salinity unit,annual,climate reconstructions|paleoceanography,null,null,N,5th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|magnesium/calcium|sea surface,percentile,practical salinity unit,annual,climate reconstructions|paleoceanography,null,null,N,95th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate paleoceanography magnesium/calcium,Globigerinoides ruber white,null,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,percentile,degree Celsius,annual,climate reconstructions|paleoceanography,null,null,N,32nd percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography delta 18O,delta 18O|magnesium/calcium|sea water,null,per mil VSMOW,annual,climate reconstructions|paleoceanography,null,null,N,See Thirumalai et al. 2018 for inversion equations and details; stacked record; based on Globigerinoides ruber white earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,null,degree Celsius,annual,climate reconstructions|paleoceanography,null,null,N,See Thirumalai et al. 2018 for inversion equations and details; stacked record; based on Globigerinoides ruber white earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography delta 18O,delta 18O|magnesium/calcium|sea water,percentile,per mil VSMOW,annual,climate reconstructions|paleoceanography,null,null,N,32nd percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|magnesium/calcium|sea surface,percentile,practical salinity unit,annual,climate reconstructions|paleoceanography,null,null,N,68th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,midpoint depth earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,percentile,degree Celsius,annual,climate reconstructions|paleoceanography,null,null,N,68th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate paleoceanography sample identification,null,null,null,null,paleoceanography,null,null,C,sample ID earth science paleoclimate paleoceanography delta 18O,Globigerinoides ruber white,null,per mil VPDB,null,paleoceanography,null,isotope ratio mass spectrometry,N,null earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,percentile,degree Celsius,annual,climate reconstructions|paleoceanography,null,null,N,5th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography delta 18O,delta 18O|magnesium/calcium|sea water,percentile,per mil VSMOW,annual,climate reconstructions|paleoceanography,null,null,N,5th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,magnesium/calcium,percentile,degree Celsius,annual,climate reconstructions|paleoceanography,null,null,N,95th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate paleoceanography sample identification,null,null,null,null,paleoceanography,null,null,C,core ID earth science paleoclimate climate reconstructions|paleoceanography delta 18O,delta 18O|magnesium/calcium|sea water,percentile,per mil VSMOW,annual,climate reconstructions|paleoceanography,null,null,N,95th percentile; See Thirumalai et al. 2018 for error details (uncertainty accounts for analytical+sampling+dating uncertainty) earth science paleoclimate paleocean trace metals in carbonates earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean reconstruction earth science paleoclimate paleocean age control geoscientificInformation -2403 AD 1999 AD 4353 cal yr BP -49 cal yr BP Complete 26.66 26.66 -93.92 -93.92 -1776 -1776 Ocean Atlantic Ocean North Atlantic Ocean Gulf Of Mexico Garrison Basin>LATITUDE 26.66>LONGITUDE -93.92 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 Thirumalai, K., T.M. Quinn, Y. Okumura, J.N. Richey, J.W. Partin, R.Z. Poore, and E. Moreno-Chamarro 2018 Nature Communications 9 392 1-11 10.1038/s41467-018-02846-4

Surface-ocean circulation in the northern Atlantic Ocean influences Northern Hemisphere climate. Century-scale circulation variability in the Atlantic Ocean, however, is poorly con- strained due to insufficiently-resolved paleoceanographic records. Here we present a repli- cated reconstruction of sea-surface temperature and salinity from a site sensitive to North Atlantic circulation in the Gulf of Mexico which reveals pronounced centennial-scale varia- bility over the late Holocene. We find significant correlations on these timescales between salinity changes in the Atlantic, a diagnostic parameter of circulation, and widespread pre- cipitation anomalies using three approaches: multiproxy synthesis, observational datasets, and a transient simulation. Our results demonstrate links between centennial changes in northern Atlantic surface-circulation and hydroclimate changes in the adjacent continents over the late Holocene. Notably, our findings reveal that weakened surface-circulation in the Atlantic Ocean was concomitant with well-documented rainfall anomalies in the Western Hemisphere during the Little Ice Age. STUDY NOTES: Sea-surface temperature, d18Osw, and sea-surface salinity reconstructions from the northern Gulf of Mexico generated from paired Mg/Ca-dٸO measurements in G. ruber (White) from three Garrison Basin sediment cores spanning the last 4,400 years. Provided Keywords: Gulf of Mexico, sea-surface temperature, sea-surface salinity, G. ruber, foraminifera, late Holocene

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt NOAA Template File; 2010-GB2-MCA Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt NOAA Template File; 2010-GB2-MCB Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcc.txt NOAA Template File; 2010-GB2-MCC Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-stack.txt NOAA Template File; Garrison Basin Stack SST, SSS, and d18O-sw Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt NOAA Template File; 2010-GB2-MCB Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt NOAA Template File; 2010-GB2-MCA Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11