# 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-px-07.txt # Data_Download_Description: NOAA Template File; Stalagmite PX-07 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: Paixão Cave # Location: Brazil # Northernmost_Latitude: -12.6 # Southernmost_Latitude: -12.6 # Easternmost_Longitude: -41 # Westernmost_Longitude: -41 # Elevation_m: #--------------------------------------- # Data_Collection # Collection_Name: Stalagmite PX-07 d18O Dong2022 # First_Year: 24630 # Last_Year: 23820 # 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 #PX07-289 289 1982.9 2.5 161 5 162504 4718 3121.3 3.3 0.8022 0.0013 22984 44 22984 44 3330 4 22913 44 #PX07-309 309 2077.1 2.4 69 4 401845 25953 2974.8 3 0.8046 0.0012 23992 44 23991 44 3183 3 23920 44 #PX07-315 315 2011.1 2.3 255 6 108089 2582 3092.4 2.9 0.8327 0.0014 24121 48 24120 48 3310 3 24049 48 #PX07-324 324 2079.0 3.0 461 9 60627 1236 2998.8 3 0.8149 0.0012 24168 43 24166 43 3210 3 24101 43 #PX07-340 340 1580.6 1.8 4027 81 4972 100 2731.4 3.1 0.7683 0.0012 24456 47 24437 49 2926 3 24366 49 #PX07-347 347 1821.0 2.0 912 18 25453 513 2769.5 3.1 0.7735 0.0011 24363 45 24359 45 2967 3 24294 45 #PX07-361 361 2006.9 2.4 234 6 113987 2926 2890.7 3.1 0.8052 0.0016 24582 58 24581 58 3098 3 24510 58 #PX07-375 375 1912.0 2.0 186 4 141840 3214 3032.6 3.6 0.8388 0.0012 24712 45 24711 45 3252 4 24646 45 # #--------------------------------------- # 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 300 23819 -1.213 300.5 23825 -1.064 301 23832 -2.239 302 23845 -2.137 303 23858 -2.804 304 23870 -2.852 305 23883 -1.514 306 23896 -3.346 307 23909 -2.132 308 23922 -2.379 309 23934 -3.084 310 23947 -3.065 311 23960 -3.601 312 23974 -2.679 313 23987 -2.961 314 24001 -2.649 315 24013 -2.848 316 24026 -2.43 317 24039 -3.413 318 24052 -2.528 319 24065 -3.261 320 24078 -3.344 321 24092 -3.045 322 24105 -3.583 323 24118 -3.154 324 24132 -2.628 325 24145 -2.177 326 24159 -2.035 327 24173 -2.328 328 24187 -2.025 329 24202 -3.066 330 24217 -3.144 331 24231 -2.42 332 24244 -3.729 333 24258 -3.049 334 24271 -3.557 335 24285 -3.426 336 24298 -3.484 337 24310 -3.698 338 24316 -4.425 340 24324 -4.311 341 24327 -4.26 342 24328 -4.667 343 24328 -3.793 344 24329 -4.34 345 24329 -3.933 346 24329 -4.447 347 24329 -4.341 348 24335 -3.8 349 24341 -2.981 350 24346 -4.329 351 24356 -3.976 352 24369 -4.26 353 24381 -3.445 354 24393 -4.171 355 24406 -3.011 356 24419 -2.781 357 24431 -2.79 358 24444 -1.888 359 24456 -3.04 361 24482 -2.327 362 24495 -3.454 363 24507 -3.002 364 24520 -3.04 365 24532 -3.14 366 24545 -2.043 367 24557 -1.615 368 24570 -3.254 369 24583 -2.825 370 24596 -2.515 371 24608 -1.66 372 24621 -2.246 373 24633 -1.158