# Taylor Glacier, Antarctica 22-11KYrBP CO2 and d13CO2 Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/19765 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/taylor/taylor2016d13co2.txt # # Original_Source_URL: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Ice Cores #--------------------------------------------------------------------- # Contribution_Date # Date: 2016-03-14 #-------------------- # Title # Study_Name: Taylor Glacier, Antarctica 22-11KYrBP CO2 and d13CO2 Data #-------------------- # Investigators # Investigators: Bauska, T.K.; Baggenstos, D.; Brook, E.J.; Mix, A.C.; Marcott, S.A; Petrenko, V.V.; Schaefer, H.; Severinghaus, J.P.; Lee, J.E. #-------------------- # Description_Notes_and_Keywords # Description: CO2 concentration and Stable Isotopic Composition of CO2 from the Taylor Glacier, Antarctica. #-------------------- # Publication # Authors: Thomas K. Bauska, Daniel Baggenstos, Edward J. Brook, Alan C. Mix, Shaun A. Marcott, Vasilii V. Petrenko, Hinrich Schaefer, Jeffrey P. Severinghaus, and James E. Lee # Published_Date_or_Year: 2016-03-14 # Published_Title: Carbon isotopes characterize rapid changes in atmospheric carbon dioxide during the last deglaciation # Journal_Name: Proceedings of the National Academy of Sciences # Volume: # Edition: # Issue: # Pages: # DOI: 10.1073/pnas.1513868113 # Online_Resource: # Full_Citation: # Abstract: An understanding of the mechanisms that control CO2 change during glacial-interglacial cycles remains elusive. Here we help to constrain changing sources with a high-precision, high-resolution deglacial record of the stable isotopic composition of carbon in CO2 (d13C-CO2) in air extracted from ice samples from Taylor Glacier, Antarctica. During the initial rise in atmospheric CO2 from 17.6 to 15.5 ka, these data demarcate a decrease in d13C-CO2, likely due to a weakened oceanic biological pump. From 15.5 to 11.5 ka, the continued atmospheric CO2 rise of 40 ppm is associated with small changes in d13C-CO2, consistent with a nearly equal contribution from a further weakening of the biological pump and rising ocean temperature. These two trends, related to marine sources, are punctuated at 16.3 and 12.9 ka with abrupt, century-scale perturbations in d13C-CO2 that suggest rapid oxidation of organic land carbon or enhanced air-sea gas exchange in the Southern Ocean. Additional century-scale increases in atmospheric CO2 coincident with increases in atmospheric CH4 and Northern Hemisphere temperature at the onset of the Bolling (14.6-14.3 ka) and Holocene (11.6-11.4 ka) intervals are associated with small changes in d13C-CO2, suggesting a combination of sources that included rising surface ocean temperature. #------------------ # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: 0839078 #------------------ # Site_Information # Site_Name: Taylor Glacier Blue Ice Archive # Location: Antarctica # Country: # Northernmost_Latitude: -77.75 # Southernmost_Latitude: -77.75 # Easternmost_Longitude: 161.75 # Westernmost_Longitude: 161.75 # Elevation: m #------------------ # Data_Collection # Collection_Name: Taylor2016d13CO2 # Earliest_Year: 22330 # Most_Recent_Year: 10919 # Time_Unit: Calendar Years Before Present # Core_Length: # Notes: #------------------ # Chronology_Information # Chronology: # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ## transect_position distance along surface, , , m, , , , ,N ## age_calBP age, , , calendar years before present, , , , ,N ## CO2_ppm CO2, carbon dioxide, , ppm, ,ice core, , ,N ## d13C_CO2_vpdb delta13C-CO2 , isotope ratio, , per mille (VPDB), , , , ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # transect_position age_calBP CO2_ppm d13C_CO2_vpdb 115 10919 271.013 -6.672 105 11241 270.355 -6.653 100 11450 269.076 -6.666 99 11493 267.606 -6.679 98 11551 NAN -6.619 97 11627 262.663 -6.574 96 11695 260.242 -6.664 94 11776 258.825 -6.658 92 11866 257.129 -6.624 90 11946 257.220 -6.642 86 12093 254.214 -6.693 83 12244 250.155 -6.728 78 12580 248.311 -6.780 76 12637 246.899 -6.737 74 12697 246.477 -6.698 73 12718 244.973 -6.645 71 12751 242.422 -6.615 70 12786 242.485 -6.621 66 12937 242.267 -6.627 63 13015 240.241 -6.644 56 13285 245.777 -6.694 53 13418 243.401 -6.622 50 13519 242.979 -6.649 46 13788 243.737 -6.682 44 13859 243.751 -6.607 42 13914 240.429 -6.658 40 13991 242.583 NAN -80 13940 242.775 -6.675 -82 13992 244.155 -6.717 36 14296 244.970 -6.674 -84 14294 244.616 -6.714 -86 14369 244.088 -6.680 33 14430 242.708 -6.690 -88 14425 242.961 -6.754 -89 14473 241.353 -6.719 30 14520 238.949 -6.747 -91 14592 237.027 -6.753 -93 14664 235.408 -6.763 -95 14908 232.016 -6.756 -96 15016 232.658 -6.700 -98 15187 231.479 -6.718 -100 15345 230.111 -6.748 -102 15493 229.310 -6.760 -104 15633 226.982 -6.712 -106 15844 225.415 -6.721 -108 16046 226.466 -6.800 -110 16176 223.773 -6.842 -111 16277 219.856 -6.800 -112 16380 217.435 -6.630 -114 16655 212.906 -6.634 -115 16913 210.602 -6.571 -116 17001 204.572 -6.499 -117 17074 202.298 -6.475 -118 17142 202.520 -6.525 -119 17447 195.996 -6.443 -120 17766 195.416 -6.489 -122 18508 194.502 -6.527 -124 19522 197.527 -6.554 -126 20622 194.449 -6.501 -128 21797 191.790 -6.462 -130 22330 193.670 -6.404