# Wax Lips Lake, Greenland Plant Wax Hydrogen, Chironomid Oxygen Isotopes and Reconstructed Water Isotopes from the Holocene #----------------------------------------------------------------------- # 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/38420 # 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-lake-38420.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Paleolimnology # # Dataset_DOI: 10.25921/wgbe-f744 # # Science_Keywords: Precipitation Reconstruction, Arctic, biogeochemical cycles, carbon cycle, millennial resolution #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/greenland/mcfarlin2023/mcfarlin2023-14wll2a_d2h.txt # Data_Download_Description: NOAA Template File; Hydrogen Isotope Data # #--------------------------------------- # Contribution_Date # Date: 2023-08-25 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-10-19 #--------------------------------------- # Title # Study_Name: Wax Lips Lake, Greenland Plant Wax Hydrogen, Chironomid Oxygen Isotopes and Reconstructed Water Isotopes from the Holocene #--------------------------------------- # Investigators # Investigators: McFarlin, Jamie (https://orcid.org/0000-0002-8185-8185); Axford, Yarrow (https://orcid.org/0000-0002-8033-358X); Kusch, Stephanie (https://orcid.org/0000-0002-2708-4975); Masterson, Andrew (https://orcid.org/0000-0002-3422-2985); Lasher, Gregory (0000-0001-6975-8264); Osburn, Magdalena (https://orcid.org/0000-0001-9180-559X) #--------------------------------------- # Description_Notes_and_Keywords # Description: Hydrogen Isotopes of plant waxes and oxygen isotopes of chironomid are used to reconstruct Holocene water isotopes and geochemical cycling # Provided Keywords: Holocene, lakes, water isotope reconstructions, plant waxes, biomarkers, carbon cycling, methane #--------------------------------------- # Publication # Authors: McFarlin, J.M., Axford, Y., Kusch, S., Masterson, A.L., Lasher, G.E., Osburn, M.R. # Published_Date_or_Year: 2023-09-23 # Published_Title: Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming # Journal_Name: Science Advances # Volume: 9 # Edition: # Issue: 39 # Pages: # Report_Number: # DOI: 10.1126/sciadv.adh9704 # Online_Resource: # Full_Citation: # Abstract: Predicting changes to methane cycling in Arctic lakes is of global concern in a warming world but records constraining lake methane dynamics with past warming are rare. Here, we demonstrate that the hydrogen isotopic composition (δ2H) of mid-chain waxes derived from aquatic moss clearly decouples from precipitation during past Holocene warmth and instead records incorporation of methane in plant biomass. Trends in δ2Hmoss and δ13Cmoss values point to widespread Middle Holocene (11,700 to 4200 years ago) shifts in lake methane cycling across Greenland during millennia of elevated summer temperatures, heightened productivity, and lowered hypolimnetic oxygen. These data reveal ongoing warming may lead to increases in methane-derived C in many Arctic lakes, including lakes where methane is not a major component of the C cycle today. This work highlights a previously unrecognized mechanism influencing δ2H values of mid-chain wax and draws attention to the unquantified role of common aquatic mosses as a potentially important sink of lake methane across the Arctic. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: 1108306, 1107411, 1454734 #--------------------------------------- # Site_Information # Site_Name: Wax Lips Lake # Location: Greenland # Northernmost_Latitude: 76.852 # Southernmost_Latitude: 76.852 # Easternmost_Longitude: -66.959 # Westernmost_Longitude: -66.959 # Elevation_m: 517 #--------------------------------------- # Data_Collection # Collection_Name: 14WLL2A_d2H # First_Year: # Last_Year: # Time_Unit: # Core_Length_m: 2.16 # Parameter_Keywords: hydrogen isotopes # Notes: Oldest Holocene year is 10 cal kyr BP. This core also contains a unit below the Holocene unit that is 14C nonfinite, and is interpretted as Last Interglacial sediments (~129-116 ka) #--------------------------------------- # 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: Chronology data originally reported in McFarlin et al., 2018 (doi: 10.1073/pnas.1720420115) # Rejection_Rationale: # Reservoir_Method: # Calibration_Method: CALIB v7.1 and IntCal13 # Age_Model_Method: # Missing_Values: NaN # Chronology_Table: # lab_code material_dated depth_cm frac_mod frac_mod_err d13C_PDB age_14C_BP1950 age_14C_1s_yr age_calib_neg2s_BP1950 age_calib_pos2s_BP1950 core_id calib_curve # 14WLLN1-E living aquatic moss NaN 1.1685 0.0025 -24.92 NaN NaN NaN Ekman grab of surface sediments None # 14WLLU1-E aquatic moss NaN 0.9283 0.0020 -20.37 595 15 546 644 Ekman grab of surface sediments IntCal13 # 14WLL2A1 aquatic moss 5.5 0.9078 0.0019 -22.01 775 15 677 726 Core 14WLL2A IntCal13 # 14WLL2A1 aquatic moss 24.5 0.8609 0.0017 -22.18 1200 15 1070 1177 Core 14WLL2A IntCal13 # 14WLL2A1 aquatic moss 47.5 0.8612 0.0017 -22.24 1200 15 1070 1177 Core 14WLL2A IntCal13 # 14WLL2A1 aquatic moss 56.5 0.7783 0.0017 -22.54 2010 15 1903 1995 Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 70.5 0.7454 0.0023 -21.43 2360 25 2337 2458 Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 95 0.6001 0.0016 -19.89 4100 20 4526 4803 Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 132 0.4086 0.0016 -20.85 7190 30 7946 8049 Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 159 0.3317 0.0017 -26.56 8870 40 9783 10173 Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 181 0.0017 0.0021 -22.18 >44400 nonfinite Core 14WLL2A IntCal13 # 14WLL2A2 aquatic moss 211 -0.0005 0.0005 -21.59 >48000 nonfinite Core 14WLL2A IntCal13 #--------------------------------------- # 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_cm depth,,,centimeter,,paleolimnology,,,N,depth measured from top of core ## d2H_C21 delta 2H,C21 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C21_err delta 2H,C21 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## d2H_C23 delta 2H,C23 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C23_err delta 2H,C23 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## d2H_C25 delta 2H,C25 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C25_err delta 2H,C25 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## d2H_C27 delta 2H,C27 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C27_err delta 2H,C27 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## d2H_C29 delta 2H,C29 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C29_err delta 2H,C29 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## d2H_C31 delta 2H,C31 n-alkane,,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, ## C31_err delta 2H,C31 n-alkane,one standard deviation,per mil VSMOW,,paleolimnology,,isotope ratio mass spectrometry,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: -999 depth_cm d2H_C21 C21_err d2H_C23 C23_err d2H_C25 C25_err d2H_C27 C27_err d2H_C29 C29_err d2H_C31 C31_err 0 -224.2 -999 -278.1 4 -278.6 2.7 -278.1 -999 -270.1 5.3 -203.2 28.9 9 -164.2 82.1 -204.9 57.1 -347.3 222.7 -201.9 33.7 -173.4 41.2 -132.6 33.7 14 -247.8 1.5 -254.7 4 -231.1 3.7 -230.1 0.1 -209.7 1.3 -150.7 0 19 -267.9 1.3 -288.5 1.9 -249.1 7.5 -232.2 1.5 -221.8 0.7 -179.2 4.1 24 -260.7 18.9 -279.2 11.1 -252.6 9.4 -238.2 3.3 -219.5 4.3 -168.3 3.1 29 -199.5 4 -200.3 3.4 -170.4 0.2 -135.3 0.5 -96.2 0.3 -74.3 4.4 39 -285.4 -999 -272.4 -999 -247.7 -999 -237.3 -999 -228.4 -999 -201.8 -999 44 -236.6 5.7 -246 10.4 -217.1 13 -213.5 1.4 -193.5 6.2 -165.8 8.1 49 -260.9 9.9 -244.1 3.5 -218.7 5 -204.6 3.7 -198.1 6.5 -141.7 7.2 54 -260.3 5.3 -247.1 0.2 -232.2 0.8 -222.6 2.1 -200.7 0.8 -167.6 4.6 59 -244.1 -999 -245.7 -999 -229.6 -999 -226.7 -999 -207.8 -999 -169.8 -999 68.5 -248.1 -999 -236.8 -999 -214.7 -999 -203.6 -999 -177.7 -999 -152.3 -999 75.5 -225.1 22.2 -241.1 21.7 -233.6 18.5 -222.5 17.6 -215.8 18.9 -194.6 24.8 80.5 -329.7 1.3 -306.5 3.8 -271.7 4 -267.4 4 -256.3 7.7 -178 64.3 85.5 -328.8 1.1 -308 2.6 -281.9 3.6 -274.5 1.3 -264.6 1.2 -214.9 1.9 95.5 -334.8 -999 -308.8 -999 -283.4 -999 -277.2 -999 -267.7 -999 -194.8 -999 105.5 -319.1 4.1 -301.7 0.5 -282.3 2 -278.1 0.6 -271.2 0.6 -222.4 1.8 115.5 -356.5 0.1 -314.9 2.4 -256.2 0 -244.9 0.4 -232.4 0.6 -191.1 5.3 125.5 -360.3 2.5 -300.8 1.6 -246.2 1.2 -234 2.1 -228.7 1.8 -191.3 2.9 135.5 -313.1 2.6 -310 1.3 -252.6 0.6 -243.5 0.3 -234.7 4.3 -201.3 4.5 145.5 -362.2 -999 -346.2 -999 -255.3 -999 -241.4 -999 -246.9 -999 -206.1 -999 155.5 -329.7 0.1 -320.8 0 -262.8 1.7 -259.5 1.6 -268.7 0.1 -220.8 -999 160.5 -285.1 1.9 -272.5 2.5 -239.8 3.7 -241.7 0.8 -240.1 0.7 -220.8 4.2