# Subpolar North Atlantic Planktic and Benthic Foraminiferal Isotope and Abundance Records during the last 1,200 years #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/38185 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-ocean-38185.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Paleoceanography # # Dataset_DOI: 10.25921/y4ze-v512 # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/paleocean/atlantic/lu2023/lu2023-en539_mc22a_iso-noaa.txt # Data_Download_Description: NOAA Template File; d13C and d18O Data # #--------------------------------------- # Contribution_Date # Date: 2023-08-30 #--------------------------------------- # File_Last_Modified_Date # Date: 2025-05-27 #--------------------------------------- # Title # Study_Name: Subpolar North Atlantic Planktic and Benthic Foraminiferal Isotope and Abundance Records during the last 1,200 years #--------------------------------------- # Investigators # Investigators: Lu, Wanyi #--------------------------------------- # Description_Notes_and_Keywords # Description: #--------------------------------------- # Publication # Authors: Lu, W., Oppo, D.W., Gebbie, G., Thornalley, D. # Published_Date_or_Year: 2023-11-16 # Published_Title: Surface climate signals transmitted rapidly to deep North Atlantic throughout last millennium # Journal_Name: Science # Volume: 382 # Edition: # Issue: 6672 # Pages: 834-839 # Report_Number: # DOI: 10.1126/science.adf1646 # Online_Resource: # Full_Citation: # Abstract: Instrumental observations of subsurface ocean warming imply that ocean heat uptake has slowed 20th-century surface warming. We present high-resolution records from subpolar North Atlantic sediments that are consistent with instrumental observations of surface and deep warming/freshening and in addition reconstruct the surface-deep relation of the last 1200 years. Sites from ~1300 meters and deeper suggest an ~0.5 degrees celsius cooling across the Medieval Climate Anomaly to Little Ice Age transition that began ~1350 ± 50 common era (CE), whereas surface records suggest asynchronous cooling onset spanning ~600 years. These data suggest that ocean circulation integrates surface variability that is transmitted rapidly to depth by the Atlantic Meridional Ocean Circulation, implying that the ocean moderated Earth’s surface temperature throughout the last millennium as it does today. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: OCE-2031929, OCE-1304291, OCE-2114579 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Woods Hole Oceanographic Institution # Grant: Edna McConnell Clark Foundation Fund, Weston Howland Jr. Postdoctoral Scholarship #--------------------------------------- # Site_Information # Site_Name: EN539_MC22A # Location: North Atlantic Ocean # Northernmost_Latitude: 62.06 # Southernmost_Latitude: 62.06 # Easternmost_Longitude: -21.47 # Westernmost_Longitude: -21.47 # Elevation_m: -1535 #--------------------------------------- # Data_Collection # Collection_Name: EN539_MC22A_iso # First_Year: 697 # Last_Year: 1941 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: carbon isotopes, oxygen isotopes # Notes: #--------------------------------------- # Chronology_Information # Chronology: Radiocarbon # Chronology_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/templates/noaa-wds-paleo-14c-terms.csv # Chronology_Download_Description: Radiocarbon terms and definitions. # Chronology_Notes: Each radiocarbon date represents an average of 100 – 450 individuals of G. bulloides, picked from the > 250 or > 300 μm size fractions. # Rejection_Rationale: # Reservoir_Method: regional marine radiocarbon reservoir age correction ΔR = -108 and uncertainty of 40 years # Calibration_Method: Marine20 using Calib8.20 # Age_Model_Method: Bacon # Missing_Values: # Chronology_Table: # core_id depth_cm lab_code frac_mod frac_mod_1s age_14C_BP1950 age_14C_1s_yr age_calib_CE age_calib_pos2s_CE age_calib_neg2s_CE calib_curve delta_R_yr delta_R_uncert_yr notes # MC22A 0.25 OS-112776 0.9704 0.0028 1970 Marine20 -108 40 Outside Marine20 curve and assigned as 1970 CE # MC22A 9.75 OS-149387 0.9053 0.0019 800 15 1582 1443 1720 Marine20 -108 40 # MC22A 19.75 OS-113355 0.8885 0.002 950 20 1453 1319 1602 Marine20 -108 40 # MC22A 27.75 OS-149388 0.8373 0.0025 1430 25 1026 863 1197 Marine20 -108 40 # MC22A 35.25 OS-117750 0.7972 0.0017 1820 20 626 468 775 Marine20 -108 40 #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## Depth depth,,,centimeter,,Paleoceanography,,,N, ## Age age,,,year Common Era,,Paleoceanography,,,N, ## d13C.cw delta 13C,Cibicidoides wuellerstorfi,,per mil,,Paleoceanography,,,N, ## d18O.cw delta 18O,Cibicidoides wuellerstorfi,,per mil,,Paleoceanography,,,N, ## d13C.gb delta 13C,Globigerina bulloides,,per mil,,Paleoceanography,,,N, ## d18O.gb delta 18O,Globigerina bulloides,,per mil,,Paleoceanography,,,N, ## d13C.gi delta 13C,Globorotalia inflata,,per mil,,Paleoceanography,,,N, ## d18O.gi delta 18O,Globorotalia inflata,,per mil,,Paleoceanography,,,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: Depth Age d13C.cw d18O.cw d13C.gb d18O.gb d13C.gi d18O.gi 0.25 1941.171 1.233 2.689 -0.273 1.772 0.958 1.827 0.75 1922.681 1.262 2.705 -0.358 1.658 1.116 1.768 0.75 1922.681 0.029 2.078 1.25 1902.65 1.231 2.741 -0.231 1.893 1.008 1.835 1.75 1885.618 1.263 2.771 0.772 1.604 2.25 1868.416 1.342 2.746 -0.2 1.732 0.808 1.853 2.75 1850.776 -0.266 1.755 0.946 1.879 3.25 1833.62 1.211 2.791 -0.404 1.671 0.875 1.847 3.75 1816.932 -0.367 1.765 1.091 2.006 4.25 1800.86 1.397 2.803 -0.134 1.621 0.982 1.836 4.75 1782.493 -0.406 1.407 0.61 1.805 4.75 1782.493 -0.296 1.811 5.25 1763.325 -0.27 1.734 5.75 1746.646 1.234 2.611 -0.638 1.359 6.25 1730.236 -0.1 1.61 1.058 1.869 6.75 1715.9 1.43 2.729 -0.239 1.604 0.802 1.824 7.25 1699.5 1.405 2.7 -0.277 1.762 0.734 1.65 7.75 1684.714 1.449 2.705 -0.36 1.328 0.93 1.815 7.75 1684.714 -0.315 1.664 8.25 1669.042 -0.321 1.668 1.156 2.119 8.75 1655.423 1.184 2.694 -0.34 1.753 1.064 1.958 9.25 1641.003 1.337 2.624 -0.306 1.857 1.181 1.771 9.75 1622.9 1.333 2.738 -0.165 1.817 0.927 1.922 10.25 1609.395 -0.526 1.234 10.75 1596.793 1.509 2.715 -0.541 1.554 1.013 1.737 11.25 1583.36 1.408 2.626 0.037 1.662 11.75 1570.051 1.265 2.581 -0.404 1.591 0.898 1.782 12.25 1557.475 1.312 2.654 -0.291 1.514 1.058 1.67 12.75 1543.472 1.307 2.683 -0.4 1.465 1.143 1.727 13.25 1529.613 1.445 2.641 -0.569 1.618 1.111 1.77 13.75 1518.978 1.256 2.693 -0.283 1.729 0.96 1.988 14.25 1509.458 1.47 2.625 -0.325 1.855 1.096 1.908 14.75 1498.057 1.385 2.64 -0.187 1.801 0.97 1.704 15.25 1487.558 1.244 2.615 -0.46 1.739 15.75 1475.07 0.295 1.797 15.75 1475.07 -0.233 1.716 15.75 1475.07 -0.353 1.474 16.25 1462.209 1.396 2.598 -0.455 1.658 0.983 1.927 16.75 1451.568 1.448 2.716 -0.223 1.722 1.035 1.816 17.25 1439.973 1.425 2.714 -0.084 1.707 0.637 2.069 17.75 1427.55 1.317 2.665 -0.046 1.71 1.178 1.774 18.25 1417.687 0.957 2.538 -0.595 1.5 1.007 1.816 18.75 1407.777 1.402 2.674 -0.091 1.65 1.12 1.863 19.25 1395.761 1.379 2.641 -0.266 1.645 19.75 1384.611 1.484 2.753 -0.237 1.618 0.985 1.663 20.25 1369.19 1.532 2.776 -0.112 1.677 20.75 1353.175 1.267 2.534 -0.142 1.799 0.776 1.735 21.25 1337.035 1.399 2.693 -0.162 1.517 1.062 1.835 21.75 1320.919 -0.083 1.616 0.772 1.617 22.25 1303.999 1.336 2.551 -0.303 1.768 0.753 1.692 22.75 1290.178 1.327 2.53 -0.207 1.562 0.995 1.637 23.25 1273.236 -0.148 1.632 1.033 1.702 23.75 1251.443 1.409 2.633 -0.399 1.489 0.952 1.53 24.25 1228.455 1.119 2.699 -0.127 1.631 0.951 1.77 24.75 1207.548 1.392 2.695 -0.183 1.522 0.949 1.637 25.25 1186.648 1.391 2.626 -0.367 1.629 1.014 1.853 25.75 1167.879 1.216 2.676 -0.313 1.615 0.792 1.847 26.25 1147.849 1.405 2.698 -0.405 1.569 0.708 1.758 26.75 1127.582 1.276 2.57 -0.095 1.872 0.884 1.679 27.25 1103.159 1.519 2.665 -0.049 1.671 0.613 1.598 27.75 1079.437 1.237 2.701 -0.209 1.788 0.812 1.803 28.25 1054.569 1.134 2.652 -0.378 1.669 1.117 1.858 28.75 1030.819 1.173 2.722 -0.75 1.5 1.167 1.616 29.25 1008.086 1.456 2.691 -0.276 1.578 1.009 1.689 29.75 984.1477 1.127 2.657 -0.409 1.33 0.722 1.69 30.25 956.5063 1.466 2.707 -0.06 1.496 0.817 1.761 30.75 928.968 1.282 2.546 -0.278 1.383 0.869 1.812 31.25 902.2796 1.424 2.654 -0.178 1.567 1.086 1.829 31.75 874.7729 1.32 2.676 0.08 1.732 1.022 1.48 32.25 853.7529 1.43 2.648 -0.402 1.483 1.043 1.646 32.75 826.6968 -0.47 1.328 0.813 1.78 33.25 799.2267 1.39 2.535 -0.564 1.566 0.989 1.588 33.75 775.4309 1.373 2.613 -0.309 1.55 1.187 1.809 34.25 747.9379 1.412 2.7 -0.457 1.588 0.519 1.523 34.75 723.3025 1.349 2.62 -0.608 1.61 0.927 1.569 35.25 697.3122 1.317 2.529 -0.295 1.739 0.839 1.684