# 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_mc28a_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_MC28A # Location: North Atlantic Ocean # Northernmost_Latitude: 62.76 # Southernmost_Latitude: 62.76 # Easternmost_Longitude: -20.67 # Westernmost_Longitude: -20.67 # Elevation_m: -1031 #--------------------------------------- # Data_Collection # Collection_Name: EN539_MC28A_iso # First_Year: 1204 # Last_Year: 2001 # 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 # MC28A 0.5 OS-112780 1.0081 0.0024 NA NA 1992 Marine20 -108 40 14C age > Modern and assigned as 1992 CE # MC28A 10.25 OS-117752 0.9096 0.0019 760 15 1614 1473 1783 Marine20 -108 40 # MC28A 20.25 OS-117753 0.8663 0.0018 1150 15 1297 1166 1428 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.up delta 13C,Uvigerina peregrina,,per mil,,Paleoceanography,,,N, ## d18O.up delta 18O,Uvigerina peregrina,,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.up d18O.up d13C.gb d18O.gb d13C.gi d18O.gi 0.25 2000.994 -0.721 2.663 -0.766 1.333 0.505 1.878 0.75 1983.09 -0.419 2.819 -0.786 1.202 0.408 1.592 1.25 1965.163 -0.65 2.658 -0.131 1.547 0.704 1.726 1.25 1965.163 -0.472 2.758 1.75 1945.09 -0.436 2.754 -0.233 1.695 1.041 1.88 2.25 1922.538 -0.576 2.76 -0.291 1.706 0.845 1.81 2.25 1922.538 -0.47 2.938 2.75 1902.388 -0.602 2.856 -0.237 1.835 1.058 2.002 2.75 1902.388 -0.305 2.805 3.25 1880.903 -0.354 2.824 -0.136 1.44 0.885 1.922 3.25 1880.903 -0.459 2.827 3.75 1861.318 -0.386 2.74 -0.176 1.731 0.83 2.135 3.75 1861.318 -0.145 2.807 4.25 1841.945 -0.313 2.739 -0.439 1.716 0.967 1.806 4.25 1841.945 -0.359 2.799 4.75 1825.765 -0.451 2.827 -0.313 1.795 1.066 1.952 5.25 1804.229 -0.64 2.899 -0.399 1.695 1.105 1.916 5.75 1785.219 -0.537 2.781 -0.219 1.739 0.945 1.977 5.75 1785.219 -0.346 2.882 6.25 1767.643 -0.321 2.775 -0.014 1.557 0.793 1.853 6.25 1767.643 -0.595 2.85 6.75 1750.553 -0.395 2.731 -0.139 1.85 1.017 2.073 7.25 1731.137 -0.358 2.762 -0.069 1.693 1.055 2.072 7.25 1731.137 -0.453 2.81 7.75 1709.105 -0.36 2.688 -0.51 1.593 1.114 1.967 7.75 1709.105 -0.486 2.659 8.25 1690.7 -0.293 2.853 -0.388 1.47 1.129 1.912 8.25 1690.7 -0.461 2.86 8.75 1674.833 -0.567 2.766 -0.133 1.77 1.026 2.034 8.75 1674.833 -0.619 2.811 9.25 1652.117 -0.464 2.752 -0.211 1.777 1.071 1.814 9.25 1652.117 -0.387 2.87 9.75 1632.369 -0.593 1.655 0.833 1.906 9.75 1632.369 -0.059 1.81 10.25 1611.722 -0.533 2.812 -0.199 1.7 0.974 1.748 10.75 1589.085 -0.368 2.771 -0.068 1.75 1.187 2.035 10.75 1589.085 -0.488 2.863 11.25 1570.286 -0.357 2.714 -0.085 1.792 0.835 1.753 11.75 1550.068 -0.401 2.715 0.045 1.766 0.809 1.786 11.75 1550.068 -0.397 2.8 12.25 1532.165 -0.421 2.809 0.894 1.781 12.5 1521.229 -0.028 1.904 12.75 1511.267 -0.241 1.736 1.032 1.885 13.25 1494.334 -0.219 2.777 -0.53 1.487 0.826 1.931 13.25 1494.334 -0.4 2.771 -0.402 1.61 13.75 1475.897 -0.363 2.948 -0.146 1.641 1.106 1.815 14.25 1457.675 -0.389 2.847 -0.126 1.74 0.942 1.896 14.25 1457.675 -0.549 2.797 14.75 1439.1 -0.335 2.806 0.052 1.714 0.957 1.937 14.75 1439.1 -0.526 2.811 15.25 1419.237 -0.471 2.719 -0.494 1.663 0.953 1.824 15.25 1419.237 -0.531 2.777 15.75 1398.817 -0.147 2.661 -0.251 1.762 0.804 1.721 15.75 1398.817 -0.546 2.884 16.25 1380.415 -0.41 2.813 -0.415 1.721 1.119 1.878 16.75 1363.114 -0.39 2.882 -0.025 1.875 0.949 1.967 17.25 1347.803 -0.097 2.827 -0.156 1.667 1 1.97 17.25 1347.803 -0.54 2.803 17.75 1327.931 -0.485 2.882 -0.121 1.743 1.037 1.825 18.25 1308.745 -0.484 2.79 -0.265 1.674 0.888 1.807 18.75 1288.568 -0.439 2.703 -0.32 1.567 1.078 1.708 18.75 1288.568 -0.45 2.777 19.25 1264.661 -0.517 2.852 -0.541 1.49 0.978 1.876 19.25 1264.661 -0.191 1.825 19.75 1244.035 -0.387 2.851 -0.252 1.686 0.893 1.897 20.25 1226.112 -0.305 2.808 -0.072 1.703 0.979 1.667 20.25 1226.112 -0.424 2.84 20.75 1203.629 -0.353 2.803 -0.23 1.778 1.17 1.739