# 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_mc13a_iso-noaa.txt # Data_Download_Description: NOAA Template File; d13C and d18O Data # #--------------------------------------- # Contribution_Date # Date: 2023-08-30 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-12-21 #--------------------------------------- # 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: # Grant: #--------------------------------------- # Site_Information # Site_Name: EN539_MC13A # Location: North Atlantic Ocean # Northernmost_Latitude: 60.17 # Southernmost_Latitude: 60.17 # Easternmost_Longitude: -23.78 # Westernmost_Longitude: -23.78 # Elevation_m: -2129 #--------------------------------------- # Data_Collection # Collection_Name: EN539_MC13A_iso # First_Year: 922 # Last_Year: 1979 # 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_err_yr notes # MC13A 0.25 OS-112770 0.9529 0.0021 1988 Marine20 -108 40 Outside Marine20 curve and assigned as 1988 CE # MC13A 8 OS-121912 0.9167 0.0018 700 15 1679 1513 1852 Marine20 -108 40 # MC13A 15.5 OS-121913 0.8782 0.0017 1040 15 1381 1271 1501 Marine20 -108 40 # MC13A 22 OS-113333 0.8346 0.0024 1450 25 1003 837 1172 Marine20 -108 40 # MC13A 26.75 OS-163924 0.8388 0.0019 1410 20 1049 892 1212 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 1978.874 1.056 2.742 -0.344 1.668 0.824 1.657 0.25 1978.874 1.122 2.781 -0.785 1.38 1.004 2.019 0.75 1960.598 0.947 2.719 -0.861 1.395 0.651 1.941 0.75 1960.598 1.118 2.981 -0.692 1.61 0.72 1.885 1.25 1942.547 1.184 2.777 -0.292 1.624 0.953 1.768 1.25 1942.547 -0.168 1.81 0.995 1.851 1.75 1924.259 1.049 2.825 -0.13 1.795 0.995 1.802 2.25 1906.511 1.136 2.759 -0.379 1.808 0.944 1.837 2.75 1883.663 1.026 2.885 -0.316 1.685 0.92 2.009 3.25 1862.647 1.295 2.785 0.193 1.911 0.95 1.934 3.75 1841.679 1.205 2.803 -0.048 1.658 1.055 1.959 4.25 1820.392 1.27 2.825 -0.265 1.659 0.949 1.749 4.75 1799.905 0.787 2.874 0.073 1.835 1.002 1.897 5.25 1777.956 1.519 2.813 -0.167 1.642 0.944 1.94 5.75 1757.316 1.21 2.761 0.993 1.745 6.25 1735.072 1.364 2.588 -0.061 1.789 1.112 1.886 6.75 1715.423 1.266 2.642 0.037 1.719 0.847 1.849 7.25 1698.306 1.051 2.763 -0.177 1.591 0.923 2.016 7.75 1678.849 1.115 2.787 -0.462 1.387 0.975 1.965 8.25 1661.546 0.028 1.666 0.884 1.663 8.75 1641.534 -0.008 1.547 0.849 1.703 9.25 1622.782 1.253 2.809 -0.298 1.615 1.042 2.055 9.75 1601.092 1.326 2.76 0.914 1.63 10.25 1580.712 -0.484 1.691 1.2 1.762 10.75 1562.26 1.379 2.734 -0.061 1.712 1.112 1.884 11.25 1542.77 1.305 2.75 -0.505 1.508 0.901 1.733 11.75 1523.365 1.087 2.87 12.25 1503.852 1.06 2.703 -0.262 1.701 0.711 1.6 12.75 1482.667 1.265 2.762 -0.09 1.693 1.116 1.914 13.25 1462.151 1.182 2.706 -0.339 1.627 1.039 1.785 13.75 1442.449 0.699 2.768 -0.274 1.753 1.042 1.869 14.25 1420.586 1.277 2.877 -0.408 1.545 0.889 1.891 14.75 1402.252 1.29 2.812 1.086 1.6 15.25 1382.406 -0.303 1.57 0.956 1.783 15.75 1363.593 1.285 2.822 -0.083 1.726 1.045 1.866 16.25 1342.784 1.307 2.768 -0.177 1.783 1.111 1.719 16.75 1321.586 1.2 2.681 -0.331 1.617 0.883 1.781 17.25 1301.685 -0.317 1.587 0.952 1.831 17.75 1279.075 1.142 2.83 -0.069 1.659 0.938 1.604 18.25 1256.459 1.036 2.638 -0.199 1.697 1.003 1.886 18.75 1235.819 -0.031 1.698 1.103 1.885 19.25 1214.925 0.9 2.657 -0.25 1.635 0.935 1.605 19.75 1195.824 0.932 2.716 0.058 1.61 0.831 1.729 20.25 1173.017 1.196 2.736 -0.168 1.614 1.051 1.868 20.75 1151.775 -0.293 1.541 1.019 1.668 21.25 1126.987 1.074 2.764 -0.308 1.621 0.8 1.662 21.75 1104.749 -0.069 1.733 0.808 1.944 22.25 1081.834 1.06 2.64 -0.188 1.496 0.959 1.606 22.75 1059.95 0.933 2.701 0.024 1.685 0.908 1.744 23.25 1036.805 1.08 2.698 -0.434 1.343 0.888 1.872 23.75 1015.398 1.226 2.778 -0.436 1.401 1.055 1.824 24.25 1002.659 1.329 2.747 -0.212 1.699 1.042 1.754 24.75 984.3495 1.384 2.799 -0.217 1.618 1.03 1.706 25.25 968.0615 1.201 2.741 -0.233 1.779 0.953 1.751 25.75 953.2601 1.251 2.647 -0.206 1.664 0.985 1.672 26.25 939.074 1.17 2.648 -0.269 1.312 0.861 1.738 26.75 921.793 1.327 2.733 -0.439 1.203 1.089 1.746