# Lake Hakluytvatnet, Svalbard 12,900 Year Leaf Wax Hydrogen Isotope Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # 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/32513 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/norway/hakluytvatn2018.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Data Type: Paleolimnology # # Dataset_DOI: # # Parameter_Keywords: hydrogen isotopes #--------------------------------------- # Contribution_Date # Date: 2021-02-01 #--------------------------------------- # File_Last_Modified_Date # Date: 2021-02-01 #--------------------------------------- # Title # Study_Name: Lake Hakluytvatnet, Svalbard 12,900 Year Leaf Wax Hydrogen Isotope Data #--------------------------------------- # Investigators # Investigators: Balascio, N.L.; D'Andrea, W.J.; Gjerde, M.; Bakke, J. #--------------------------------------- # Description_Notes_and_Keywords # Description: Leaf wax hydrogen isotope data from lake sediment core from Hakluytvatnet, Svalbard, for the past 12,900 years. # Provided Keywords: hydrogen isotopes, n-alkane, svalbard, Holocene #--------------------------------------- # Publication # Authors: Nicholas L. Balascio, William J. D'Andrea, Marthe Gjerde, Jostein Bakke # Published_Date_or_Year: 2018-03-01 # Published_Title: Hydroclimate variability of High Arctic Svalbard during the Holocene inferred from hydrogen isotopes of leaf waxes # Journal_Name: Quaternary Science Reviews # Volume: 183 # Edition: # Issue: # Pages: 177-187 # Report_Number: # DOI: 10.1016/j.quascirev.2016.11.036 # Online_Resource: https://www.sciencedirect.com/science/article/pii/S0277379116306266 # Full_Citation: # Abstract: The response of the Arctic hydrologic cycle to global warming includes changes in precipitation patterns and moisture availability associated with variable sea ice extent and modes of atmospheric circulation. Reconstructions of past hydroclimate changes help constrain the natural range of these systems, identify the manners in which they respond to different forcing mechanisms, and reveal their connections to other components of the climate system, all of which lead to a better understanding of present and future changes. Here we examine hydroclimate changes during the Holocene in the High Arctic archipelago of Svalbard by reconstructing the isotopic composition of precipitation. We measured the hydrogen isotopic composition (dD values) of leaf wax compounds (n-alkanes; C25-C31) in a sediment core from Lake Hakluytvatnet on the island of Amsterdamoya, northwest Spitsbergen. We interpret dD values of mid-chain (C25) and long-chain (C29, C31) length n-alkanes to represent changes in the isotopic composition of lake water and precipitation over the last 12.9 ka. After deglaciation of the catchment, water supply became restricted and the lake experienced significant evaporative isotopic enrichment indicating warmer conditions from 12.8 to 7.5 ka. The isotope values suggest an increase in the delivery of moisture from warmer sub-polar air masses between 12.8 and 9.5 ka, followed by generally warm, but unstable conditions between 9.5 and 7.5 ka, possibly indicating a response to meltwater forcing. Sedimentary evidence indicates a hiatus in deposition c. 7.5-5.0 ka, likely as a result of desiccation of the lake. At c. 5.0 ka lacustrine sedimentation resumed and over the last 5 ka there was a progressive increase in the influence of polar air masses and colder conditions, which culminated in an abrupt shift to colder conditions at c. 1.8 ka. This late Holocene cooling ended c. 0.18 ka, when isotopic data indicate warmer conditions and greater influence of moisture derived from lower latitudes. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Norwegian Research Council # Grant: 210004 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Vetlesen Foundation # Grant: #--------------------------------------- # Site_Information # Site_Name: Lake Hakluytvatnet # Location: Svalbard # Country: Norway # Northernmost_Latitude: 79.77 # Southernmost_Latitude: 79.77 # Easternmost_Longitude: 10.74 # Westernmost_Longitude: 10.74 # Elevation: 12 #--------------------------------------- # Data_Collection # Collection_Name: Hakluytvatnet2018d2H # First_Year: 12845 # Last_Year: -42 # Time_Unit: cal yr BP # Core_Length: 1.70 # Notes: AMD-02112, AMP-112 #--------------------------------------- # Chronology_Information # Chronology: # # Labcode sample identification used by 14C laboratory # depth Depth to sample interval (cm) # mat.dated Material Dated # 14C.raw conventional radiocarbon age, years before 1950AD # 14C.raw_err radiocarbon age, standard error # datemeth Dating method # reservoir Reservoir correction # delta-R Deviation from global mean reservoir correction # delta-R_err_lo delta-R standard error down # delta-R_err_up delta-R standard error up # calib.14C Calibrated age # calib.14C_1sig_lo Calibrated age, 1-sigma lower confidence bound # calib.14C_1sig_up Calibrated age, 1-sigma upper confidence bound # calib.14C_2sig_lo Calibrated age, 2-sigma lower confidence bound # calib.14C_2sig_up Calibrated age, 2-sigma upper confidence bound # calib_method Calibration method # rejected Rejected sample (yes/no) # notes Notes # Labcode depth mat.dated 14C.raw 14C.raw_err datemeth reservoir delta-R delta-R_err_lo delta-R_err_up calib.14C calib.14C_1sig_lo calib.14C_1sig_up calib.14C_2sig_lo calib.14C_2sig_up calib_method rejected notes # D-AMS006994 11.5 plant remains 335 23 312 468 # D-AMS006995 16 plant remains 590 22 541 646 # D-AMS006996 20.5 plant remains 1006 20 835 963 # Ua-48155 27.5 plant remains 1481 30 1307 1411 # Ua-48156 29.5 plant remains 1638 31 1416 1612 # D-AMS006997 31.5 plant remains 1778 24 1617 1808 # Ua-48157 35 plant remains 1432 30 1295 1376 # Ua-48158 41 plant remains 1860 30 1720 1869 # Ua-48159 46 plant remains 1895 30 1737 1897 # Ua-48160 49 plant remains 1925 31 1816 1947 # Ua-48161 55 plant remains 2025 31 1896 2099 # Ua-48162 58.5 plant remains 2100 30 1997 2144 # Ua-48163 68.5 plant remains 2564 30 2506 2754 # Ua-48164 74 plant remains 2589 30 2545 2767 # Ua-48165 84 plant remains 2859 30 2879 3064 # Ua-48166 96.5 plant remains 3458 30 3641 3828 # Ua-48167 101 plant remains 3433 30 3608 3826 # Ua-48168 109 plant remains 3783 34 4006 4284 # Ua-48169 122 plant remains 4293 33 4826 4959 # Poz-70631 128 plant remains 4575 35 5055 5446 # ETH-49505 133.5 plant remains 7107 56 7827 8023 # Ua-48170 144.5 plant remains 7823 51 8455 8770 # Ua-48171 155.5 plant remains 8236 50 9032 9399 # Ua-48172 164.5 plant remains 7934 60 8610 8988 # ETH-49506 167.5 plant remains 8718 52 9550 9887 # Ua-48173 179.5 plant remains 10968 61 12719 12991 # ETH-49508 185.5 plant remains 10835 86 12614 12943 # ETH-49509 190.5 plant remains 11008 55 12735 13014 # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ## depth_cm depth,,,centimeter,,paleolimnology,,,N, ## age_BP age,,,calibrated years before present,,paleolimnology,,,N, ## delta_2H_C25_ALK delta 2H, C25 n-alkane,,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C25_ALK_err delta 2H, C25 n-alkane,one standard deviation,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C27_ALK delta 2H, C27 n-alkane,,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C27_ALK_err delta 2H, C27 n-alkane,one standard deviation,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C29_ALK delta 2H, C29 n-alkane,,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C29_ALK_err delta 2H, C29 n-alkane,one standard deviation,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C31_ALK delta 2H, C31 n-alkane,,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, ## delta_2H_C31_ALK_err delta 2H, C31 n-alkane,one standard deviation,per mil SMOW,,paleolimnology,,gas chromatography - isotope ratio mass spectrometry,N, # #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: -9999 depth_cm age_BP delta_2H_C25_ALK delta_2H_C25_ALK_err delta_2H_C27_ALK delta_2H_C27_ALK_err delta_2H_C29_ALK delta_2H_C29_ALK_err delta_2H_C31_ALK delta_2H_C31_ALK_err 0.5 -42.1 -171 3.7 -188 3.6 -181 3.8 -181 3.9 1 -22.1 -168 3.6 -182 3.6 -174 3.6 -173 3.7 1.5 -2.1 -171 3.8 -182 3.9 -177 3.8 -181 4.2 2.5 38.2 -159 3.9 -179 3.7 -183 3.8 -179 4.2 3 58.2 -171 3.8 -173 3.7 -173 4.1 -166 4.3 4 98.4 -175 3.7 -181 3.7 -176 3.8 -169 3.8 4.5 118.4 -178 3.8 -180 3.7 -175 3.9 -175 3.9 5 138.5 -176 3.8 -182 3.7 -180 3.8 -181 3.9 5.5 158.1 -182 3.7 -181 3.7 -176 3.8 -181 3.9 6 178.3 -175 3.7 -179 3.6 -173 3.7 -173 3.8 6.5 198.1 -182 3.8 -183 3.7 -178 3.8 -181 3.9 7.5 238.4 -179 3.8 -181 3.7 -180 3.8 -180 3.9 8 258.5 -180 3.8 -184 3.7 -178 3.8 -182 3.9 8.5 278.8 -178 3.7 -183 3.6 -179 3.7 -180 3.8 10 339.4 -178 4.0 -180 3.7 -179 4.1 -177 4.3 11 377.2 -180 3.8 -183 3.7 -181 3.8 -182 3.9 12 415.1 -179 3.8 -182 3.7 -180 3.8 -184 3.9 13 453 -180 3.8 -182 3.7 -182 3.8 -186 3.9 14 490.9 -180 3.8 -181 3.7 -181 3.8 -184 3.9 15 529 -177 3.7 -177 3.7 -9999 -9999 -9999 -9999 16 593.1 -182 4.0 -183 3.7 -184 3.8 -186 3.9 17 657.4 -175 3.8 -181 3.7 -187 4.1 -188 4.2 18 722.1 -180 4.0 -184 3.9 -184 4.1 -188 4.2 19 786.6 -179 3.8 -183 3.7 -185 3.8 -187 3.9 20 851.2 -179 3.8 -183 3.7 -181 3.8 -185 3.9 21 927.7 -179 4.0 -183 3.9 -184 4.1 -187 4.2 22 1004.4 -182 4.0 -187 3.9 -185 4.1 -185 4.2 23 1081.7 -179 3.8 -185 3.7 -185 3.8 -186 3.9 24 1158.4 -177 4.0 -185 4.0 -186 3.0 -187 3.0 25 1235.6 -176 4.0 -184 3.9 -182 4.1 -184 4.2 27 1367.4 -179 3.8 -185 3.7 -185 3.8 -188 3.9 28 1433.2 -179 3.8 -182 3.7 -183 3.8 -185 3.9 29 1499.7 -181 4.0 -186 3.9 -184 4.1 -187 4.2 30 1566 -183 3.8 -186 3.7 -185 3.8 -187 3.9 31 1589.4 -181 3.8 -184 3.7 -184 3.8 -188 3.9 32 1613.1 -182 3.7 -186 3.6 -187 4.1 -188 3.9 33 1636.5 -175 4.0 -182 4.0 -181 3.0 -183 3.0 35 1682.4 -181 3.8 -188 3.7 -194 4.1 -194 4.2 40 1784.8 -177 3.8 -186 3.7 -201 3.8 -9999 -9999 43 1832.3 -178 3.0 -186 3.0 -187 3.0 -188 3.0 48 1900.6 -169 3.8 -177 3.9 -190 4.1 -193 4.2 53 1977.9 -174 3.0 -183 3.0 -186 3.0 -186 3.0 55 2012.8 -177 4.0 -184 3.9 -195 4.1 -195 4.2 63 2267.3 -177 3.0 -185 3.0 -184 3.0 -186 3.0 73 2713.4 -171 4.0 -177 4.0 -180 3.0 -180 3.0 83 2981 -177 3.0 -183 3.0 -185 3.0 -186 3.0 93 3477.1 -169 3.0 -181 3.0 -182 3.0 -184 3.0 103 3863.2 -171 3.0 -182 4.0 -176 4.0 -173 3.0 113 4334.7 -168 3.0 -185 4.0 -185 3.0 -182 3.0 117 4538.7 -177 3.0 -186 3.0 -193 3.0 -196 3.0 120 4663.8 -172 3.0 -181 3.0 -189 3.0 -189 3.0 123 4776.9 -167 3.0 -177 3.0 -184 3.0 -184 3.0 124 4814.5 -170 3.0 -180 3.0 -190 3.0 -196 3.0 126 4887.7 -169 3.0 -180 3.0 -186 3.0 -188 3.0 128 4962.3 -174 3.0 -179 3.0 -190 3.0 -197 3.0 130 7532.2 -156 3.0 -169 3.0 -178 3.0 -188 3.0 133 7782.9 -168 3.0 -179 3.0 -193 3.0 -191 3.0 134 7867.2 -164 3.0 -174 3.0 -196 3.0 -188 3.0 137 8122.5 -169 3.0 -181 3.0 -201 3.0 -190 3.0 142 8475.6 -168 3.0 -180 3.0 -204 3.0 -197 3.0 153 9076.7 -165 3.0 -178 3.0 -186 3.0 -196 3.0 159 9325.8 -166 3.0 -181 3.0 -189 3.0 -200 3.0 163 9429.1 -161 3.0 -181 3.0 -196 3.0 -196 3.0 164 9450 -158 3.0 -178 3.0 -191 3.0 -191 3.0 166 9503.4 -157 3.0 -178 3.0 -185 3.0 -189 3.0 168 9567.4 -158 3.0 -181 3.0 -190 3.0 -195 3.0 170 9629.9 -163 3.0 -184 3.0 -196 3.0 -192 3.0 173 10305.6 -172 3.0 -187 3.0 -198 3.0 -188 3.0 174 10530 -170 3.0 -189 3.0 -199 3.0 -191 3.0 175 10752.5 -172 3.0 -188 3.0 -202 3.0 -195 3.0 177 11501.2 -176 3.0 -198 3.0 -212 3.0 -194 3.0 179 12249.2 -180 3.0 -229 3.0 -223 3.0 -203 3.0 183 12845.8 -206 3.0 -216 3.0 -209 3.0 -212 3.0