# Global Speleothem Oxygen and Carbon Isotope Data during Heinrich Stadial 2 #----------------------------------------------------------------------- # 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/36854 # 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-cave-36854.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Speleothems # # Dataset_DOI: 10.25921/18dq-7a17 # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/speleothem/dong2022/dong2022-nar-c.txt # Data_Download_Description: NOAA Template File; Stalagmite NAR-C d18O Data # #--------------------------------------- # Contribution_Date # Date: 2022-09-20 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-03-24 #--------------------------------------- # Title # Study_Name: Global Speleothem Oxygen and Carbon Isotope Data during Heinrich Stadial 2 #--------------------------------------- # Investigators # Investigators: Dong, Xiyu; Kathayat, Gayatri; Rasmussen, Sune O.; Svensson, Anders; Severinghaus, Jeffrey P.; Li, Hanying; Sinha, Ashish; Xu, Yao; Zhang, Haiwei; Shi, Zhengguo; Cai, Yanjun; Pérez-Mejías, Carlos; Baker, Jonathan; Zhao, Jingyao; Spötl, Christoph; Columbu, Andrea; Ning, Youfeng; Stríkis, Nicolás M.; Chen, Shitao; Wang, Xianfeng; Gupta, Anil K.; Dutt, Som; Zhang, Fan; Cruz, Francisco W.; An, Zhisheng; Edwards, R. Lawrence; Cheng, Hai #--------------------------------------- # Description_Notes_and_Keywords # Description: # Provided Keywords: Heinrich Stadial 2, timing, structure, ice-core chronology, climate dynamics #--------------------------------------- # Publication # Authors: Dong, Xiyu, Gayatri Kathayat, Sune O. Rasmussen, Anders Svensson, Jeffrey P. Severinghaus, Hanying Li, Ashish Sinha, Yao Xu, Haiwei Zhang, Zhengguo Shi, Yanjun Cai, Carlos Pérez-Mejías, Jonathan Baker, Jingyao Zhao, Christoph Spötl, Andrea Columbu, Youfeng Ning, Nicolás M. Stríkis, Shitao Chen, Xianfeng Wang, Anil K. Gupta, Som Dutt, Fan Zhang, Francisco W. Cruz, Zhisheng An, R. Lawrence Edwards, Hai Cheng # Published_Date_or_Year: 2022-10-04 # Published_Title: Coupled atmosphere-ice-ocean dynamics during Heinrich Stadial 2 # Journal_Name: Nature Communications # Volume: 13 # Edition: # Issue: # Pages: # Report_Number: 5867 # DOI: 10.1038/s41467-022-33583-4 # Online_Resource: # Full_Citation: # Abstract: Our understanding of climate dynamics during millennial-scale events is incomplete, partially due to the lack of their precise phase analyses under various boundary conditions. Here we present nine speleothem oxygen-isotope records from mid-to-low-latitude monsoon regimes with sub-centennial age precision and multi-annual resolution, spanning the Heinrich Stadial 2 (HS2) — a millennial-scale event that occurred at the Last Glacial Maximum. Our data suggests that the Greenland and Antarctica ice-core chronologies require +320- and +400-year adjustments, respectively, supported by extant volcanic evidence and radiocarbon ages. Our chronological framework shows a synchronous HS2 onset globally. Our records precisely characterize a centennial-scale abrupt “tropical atmospheric seesaw” superimposed on the conventional “bipolar seesaw” at the beginning of HS2, implying a unique response/feedback from low-latitude hydroclimate. Together with our observation of an early South American monsoon shift at the HS2 termination, we suggest a more active role of low-latitude hydroclimate dynamics underlying millennial events than previously thought. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Natural Science Foundation of China # Grant: 41888101, 41731174, 42150710534, 41703007 and 42172201 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Strategic Priority Research Program of Chinese Academy of Sciences # Grant: XDB 40000000 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: FAPESP # Grant: 2017/50085-3 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Carlsberg Foundation # Grant: SOR’s ChronoClimate project #--------------------------------------- # Site_Information # Site_Name: Cueva del Diamante Cave # Location: Peru # Northernmost_Latitude: -5.7 # Southernmost_Latitude: -5.7 # Easternmost_Longitude: -77.5 # Westernmost_Longitude: -77.5 # Elevation_m: 960 #--------------------------------------- # Data_Collection # Collection_Name: Stalagmite NAR-C d18O Dong2022 # First_Year: 24200 # Last_Year: 23300 # Time_Unit: cal yr BP # Core_Length_m: # Parameter_Keywords: oxygen isotopes # Notes: #--------------------------------------- # Chronology_Information # Chronology: Uranium-Thorium # Chronology_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/templates/noaa-wds-paleo-uth-terms.csv # Chronology_Download_Description: Uranium-Thorium terms and definitions. # Chronology_Notes: The sample number is named as “speleothem number-depth (mm)" # 238U_Decay_Constant: 1.55125x10[-10] # 234U_Decay_Constant: 2.82206x10[-6] # 230Th_Decay_Constant: 9.1705x10[-6] # Initial_230Th/232Th: 4.4 ± 2.2 ppm # Initial_230Th/232Th_Method: Values for a material at secular equilibrium, with the bulk earth 232Th/238U value of 3.8. The errors are arbitrarily assumed to be 50%. # Missing_Values: na # Chronology_Table: #samp_id depth_top_mm 238U_ppb 238U_2s_ppb 232Th_ppt 232Th_2s_ppt 230Th_232Th_atom_ppm 230Th_232Th_atom_2s_ppm d234U_meas_permil d234U_meas_2s_permil 230Th_238U_act 230Th_238U_act_2s age_uncorr_BM age_uncorr_2s_yr age_corr_BM age_corr_2s_yr d234U_init_permil d234U_init_2s_permil age_corr_BP1950 age_corr_2s_yr #NAR-C-47.8 478 233.789326 0.223213 615.150036 12.385608 3127.789411 63.131749 1510.423107 2.096503 0.499147 0.000853 23650 49 23620 53 1614.536136 2.254212 23549 53 #NAR-C-47.9 479 220.971242 0.200014 1319.292385 26.461330 1379.178182 27.720720 1488.494701 2.306006 0.499413 0.000792 23895 48 23828 68 1592.027034 2.485010 23757 68 #NAR-C-48 480 256.387545 0.216270 2487.029918 49.831971 858.316085 17.236300 1498.738948 1.876272 0.504970 0.000800 24076 46 23967 90 1603.616713 2.048085 23896 90 #NAR-C-48.15 481.5 239.392523 0.207876 1394.690485 27.970762 1409.708222 28.333761 1465.896877 1.952806 0.498116 0.000790 24069 47 24003 66 1568.633964 2.110059 23932 66 #NAR-C-48.3 483 236.754436 0.173696 1699.990894 34.075793 1155.080403 23.207328 1478.658240 1.903779 0.503031 0.000782 24190 46 24109 73 1582.764860 2.064057 24038 73 #NAR-C-48.6 486 254.240566 0.310783 2421.894931 48.610040 872.953572 17.674923 1478.699830 2.919808 0.504355 0.001479 24260 84 24152 113 1583.000846 3.166447 24081 113 # #--------------------------------------- # 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_mm depth,,,millimeter,,speleothems,,,N,depth from top; the distance of dating sample drilled ## age_calyrBP age,,,calendar year before present,,speleothems,,,N,age of subsample; year before 1950 ## d18O_aragcor delta 18O,calcium carbonate,,per mil VPDB,,speleothems,corrected,,N,delta 18O after aragonite correction #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: -999 depth_mm age_calyrBP d18O_aragcor 476 23309 -6.57 476.5 23374 -6.52 477 23446 -6.72 478 23611 -6.76 479 23763 -6.84 480 23860 -6.79 480.5 23893 -6.73 481 23920 -6.87 482 23968 -6.64 483 24009 -6.71 483.5 24026 -6.55 484 24042 -6.67 485 24073 -6.76 485.5 24091 -6.92 486 24110 -7.17 487 24150 -7.09 488 24188 -7.13 488.5 24207 -7.41