Dome C Last Glacial Termination Atmospheric CO2 Data: Readme file --------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program --------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Dome C Last Glacial Termination Atmospheric CO2 Data LAST UPDATE: 1/2001 (Original receipt by WDC Paleo) CONTRIBUTORS: Eric Monnin, Andreas Indermühle, André Dällenbach, Jacqueline Flückiger, Bernhard Stauffer, and Thomas F. Stocker, Climate and Environmental Physics, Physics Institute, University of Bern, and Dominique Raynaud and Jean-Marc Barnola, CNRS Laboratoire de Glaciologie et de Géophysique de l'Environnement. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2001-004 SUGGESTED DATA CITATION: Monnin, E., et al., 2001, Dome C Last Glacial Termination Atmospheric CO2 Data, IGBP PAGES/World Data Center A for Paleoclimatology Data Contribution Series #2001-004. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: E. Monnin, A. Indermühle, A. Dällenbach, J. Flückiger, B. Stauffer, T. F. Stocker, D. Raynaud, and J.-M. Barnola, 2001, Atmospheric CO2 concentrations over the last glacial termination, Science 291, 112-114, 2001. ADDITIONAL REFERENCE for DATING: J. Schwander, J. Jouzel, C. U. Hammer, J.-R. Petit, R. Udisti, E. Wolff, 2001, A tentative chronology for the EPICA Dome Concordia ice core, Geophysical Research Letters, Submitted. GEOGRAPHIC REGION: Antarctica PERIOD OF RECORD: Last Glacial Termination, ~21-9 KYrBP. LIST OF FILES: Readme_Monnin2001.txt (this file), DomeC_CO2.txt, DomeC_CH4.txt (Tab-delimited ASCII text). DESCRIPTION: Dome C Last Glacial Termination Atmospheric CO2 Data A record of atmospheric CO2 concentration during the transition from the Last Glacial Maximum to the Holocene, obtained from the Dome Concordia (Antarctica) ice core, reveals that an increase of 76 parts per million by volume (ppmv) occurred over a period of 6 thousand years in four clearly distinguishable intervals. The close correlation between CO2 concentration and Antarctic temperature indicates that the Southern Ocean played an important role in causing the CO2 increase. However, the similarity of changes in CO2 concentration and variations of atmospheric methane concentration suggests that processes in the tropics and in the northern hemisphere, where the main sources for methane are located, also had significant effects on atmospheric CO2 concentrations. BP is before 1950 Sigma mean is one sigma of the mean value (of 6 neighboring samples) Dome C, Antarctica Carbon Dioxide Data Monnin et al. Science v.291 pp112-114 BP is before 1950 Sigma mean is one sigma of the mean value (of 6 neighboring samples) Depth age CO2 sigma EDC1 mean mean (m) (yr BP) (ppmv) (ppmv) 352.580 9067 265.2 0.9 360.195 9310 263.0 0.4 369.545 9604 264.4 0.4 375.045 9776 264.0 0.3 379.995 9931 265.7 0.5 385.125 10093 267.5 0.4 390.445 10263 266.0 1.1 396.495 10458 267.6 0.7 399.280 10550 264.8 0.6 401.995 10640 264.8 0.4 404.780 10732 265.3 0.4 407.495 10822 264.1 0.7 411.380 10952 264.5 0.4 413.030 11008 264.0 0.5 415.730 11099 265.2 0.8 418.530 11195 260.8 0.5 421.795 11310 253.9 0.6 427.330 11515 249.7 0.4 429.495 11602 250.7 0.9 431.730 11695 245.3 1.1 434.995 11838 246.6 0.5 437.230 11941 243.2 0.4 443.795 12258 237.5 0.5 446.030 12372 237.6 0.6 448.745 12511 234.2 0.3 450.980 12625 238.3 1.1 454.245 12789 237.3 0.5 457.030 12927 237.9 0.2 459.895 13068 237.6 0.6 463.630 13252 236.4 0.9 465.245 13332 239.2 0.5 467.450 13440 238.6 0.6 470.195 13574 238.6 0.3 473.055 13711 239.1 0.4 479.705 14022 228.5 0.6 484.100 14230 228.4 0.7 487.245 14387 226.1 0.6 490.030 14532 225.2 0.5 492.195 14647 224.5 0.6 496.070 14855 222.0 0.8 499.345 15037 221.0 0.8 501.580 15166 220.9 0.5 504.195 15323 219.4 0.6 506.530 15466 214.0 0.8 509.245 15637 207.5 0.9 512.030 15818 207.7 0.5 514.745 16002 202.9 0.7 517.530 16199 200.8 1.0 520.245 16400 195.2 0.3 523.030 16616 193.9 0.5 526.295 16883 191.0 0.5 528.530 17073 188.5 0.7 531.245 17311 188.5 0.7 532.930 17463 189.2 0.4 536.745 17815 187.0 0.2 539.530 18074 188.6 0.5 542.900 18391 189.4 0.4 543.345 18433 192.3 0.6 543.930 18487 188.3 0.6 548.845 18948 188.7 0.2 550.510 19104 188.8 0.5 553.245 19360 190.0 0.8 556.030 19621 188.0 0.9 557.890 19795 188.2 0.7 558.195 19824 195.0 0.7 561.530 20137 187.8 0.4 564.260 20390 186.9 0.3 567.030 20646 186.5 0.3 569.745 20897 184.7 1.2 572.530 21156 186.1 0.4 576.325 21511 185.7 1.3 578.105 21676 184.4 0.8