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. Thirumalai, K. Quinn, T.M. Okumura, Y. Richey, J.N. Partin, J.W. Poore, R.Z. Moreno-Chamarro, E. 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 earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (Garrison Basin>LATITUDE 26.66>LONGITUDE -93.92) 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 NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Thirumalai, K. Investigator : Quinn, T.M. Investigator : Okumura, Y. Investigator : Richey, J.N. Investigator : Partin, J.W. Investigator : Poore, R.Z. Investigator : Moreno-Chamarro, E. 2018-02-05 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/23373 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-stack.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-stack.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt English https://www.ncdc.noaa.gov/paleo/study/23373 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-stack.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mcb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thirumalai2018/thirumalai2018-mca.txt Thirumalai, K., T.M. Quinn, Y. Okumura, J.N. Richey, J.W. Partin, R.Z. Poore, and E. Moreno-Chamarro2018Pronounced centennial-scale Atlantic Ocean climate variability correlated with Western Hemisphere hydroclimateNature Communications93921-11 10.1038/s41467-018-02846-4 START YEAR: -2403 AD * END YEAR: 1999 AD -93.92 26.66 -93.92 26.66