Articles | Volume 18, issue 9
https://doi.org/10.5194/cp-18-2063-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-18-2063-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Sep 2022
Research article |
| 06 Sep 2022
| 06 Sep 2022
Millennial variations in atmospheric CO2 during the early Holocene (11.7–7.4 ka)
Jinhwa Shin
School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, Republic of Korea
current address: Division of Glacial Environment Research, Korea Polar Research Institute (KOPRI), Incheon, 21990, Republic of Korea
School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, Republic of Korea
Jai Chowdhry Beeman
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 91191, Gif-sur-Yvette, France
Hun-Gyu Lee
School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, Republic of Korea
Jaemyeong Mango Seo
Max Planck Institute for Meteorology, Hamburg, 20146, Germany
Edward J. Brook
College of Earth, Oceanic, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5506, USA
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Cited articles
Ahn, J. and Brook, E. J.: Atmospheric CO2 and climate on millennial time scales during the last glacial period, Science, 322, 83–85, 2008.
Ahn, J. and Brook, E. J.: Siple Dome ice reveals two modes of millennial CO2 change during the last ice age, Nat. Commun., 5, 3723, https://doi.org/10.1038/ncomms4723, 2014.
Ahn, J., Wahlen, M., Deck, B. L., Brook, E. J., Mayewski, P. A., Taylor, K. C., and White, J. W. C.: A record of atmospheric CO2 during the last 40,000 years from the Siple Dome, Antarctica ice core, J. Geophys. Res., 109, D13305, https://doi.org/10.1029/2003JD004415, 2004.
Ahn, J., Brook, E. J., and Howell, K.: A high-precision method for measurement of paleoatmospheric CO2 in small polar ice samples, J. Glaciol., 55, 499–506, 2009.
Ahn, J., Brook, E. J., Mitchell, L., Rosen, J., McConnell, J. R., Taylor, K., Etheridge, D., and Rubino, M.: Atmospheric CO2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core, Global Biogeochem. Cy., 26, GB2027, https://doi.org/10.1029/2011GB004247, 2012.
Ahn, J., Brook, E. J., and Buizert, C.: Response of atmospheric CO2 to the abrupt cooling event 8200 years ago, Geophys. Res. Lett., 41, 604–609, https://doi.org/10.1002/2013gl058177, 2014.
Anklin, M., Schwander, J., Stauffer, B., Tschumi, J., Fuchs, A., Barnola, J.-M., and Raynaud, D.: CO2 record between 40 and 8 kyr B.P. from the Greenland Ice Core Project ice core, J. Geophys. Res., 102, 26539–26545, 1997.
Banta, J. R., McConnell, J. R., Frey, M. M., Bales, R. C., and Taylor, K.: Spatial and temporal variability in snow accumulation at the West Antarctic Ice Sheet Divide over recent centuries, J. Geophys. Res., 113, D23102, https://doi.org/10.1029/2008JD010235, 2008.
Barnola, J.-M., Anklin, M., Porcheron, J., Raynaud, D., Schwander, J., and Stauffer, B.: CO2 evolution during the last millennium as recorded by Antarctic and Greenland ice, Tellus B, 47, 264–272, https://doi.org/10.3402/tellusb.v47i1-2.16046, 1995.
Baumgartner, M., Kindler, P., Eicher, O., Floch, G., Schilt, A., Schwander, J., Spahni, R., Capron, E., Chappellaz, J., Leuenberger, M., Fischer, H., and Stocker, T. F.: NGRIP CH4 concentration from 120 to 10 kyr before present and its relation to a δ15N temperature reconstruction from the same ice core, Clim. Past, 10, 903–920, https://doi.org/10.5194/cp-10-903-2014, 2014.
Bauska, T. K., Joos, F., Mix, A. C., Roth, R., Ahn, J., and Brook, E. J.: Links between atmospheric carbon dioxide, the land carbon reservoir and climate over the past millennium, Nat. Geosci., 8, 383–387, 2015.
Bereiter, B., Schwander, J., Lüthi, D., and Stocker, T. F.: Change in CO2 concentration and
Bereiter, B., Lüthi, D., Siegrist, M., Schüpbach, S., Stocker, T. F., and Fischer, H.: Mode change of millennial CO2 variability during the last glacial cycle associated with a bipolar marine carbon seesaw, P. Natl. Acad. Sci. USA, 109, 9755–9760, 2012.
Bond, G., Heinrich, H., Broecker, W., Labeyrie, L., McManus, J., Andrews, J., Huon, S., Jantschik, R., Clasen, S., Simet, C., Tedesco, K., Klas, M., Bonani, G., and Ivy, S.: Evidence for massive discharges of icebergs into the North Atlantic Ocean during the last glacial period, Nature, 360, 245–249, 1992.
Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M. N., Showers, W., Hoffmann, S., Lotti-Bond, R., Hajdas, I., and Bonani, G.: Persistent solar influence on North Atlantic climate during the Holocene, Science, 294, 2130–2136, 2001.
Broecker, W.: The Glacial World According to Wally, Eldigio Press, Palisades, New York. 346 pp., 2002.
Carvalhais, N., Forkel, M., Khomik, M., Bellarby, J., Jung, M., Migliavacca, M., Mu, M., Saatchi, S., Santoro, M., Thurner, M., Weber, U., Ahrens, B., Beer, C., Cescatti, A., Randerson, J. T., and Reichstein, M.: Global covariation of carbon turnover times with climate in terrestrial ecosystems, Nature, 514, 213–217, https://doi.org/10.1038/nature13731, 2014.
Darby, D. A., Ortiz, J., Grosch, C., and Lund, S.: 1,500-year cycle in the Arctic Oscillation identified in Holocene Arctic sea-ice drift, Nat. Geosci., 5, 897–900, 2012.
Davidson, E. A., Verchot, L. V., Cattanio, J. H., Ackerman, I. L., and Carvalho, J.: Effects of soil water content on soil respiration in forests and cattle pastures of eastern Amazonia, Biogeochemistry, 48, 53–69, 2000.
Delmas, R. J.: A natural artefact in Greenland ice-core CO2 measurements, Tellus B, 45, 391–396, https://doi.org/10.3402/tellusb.v45i4.15737, 1993.
Etheridge, D. M., Steele, L., Langenfelds, R., Francey, R., Barnola, J. M., and Morgan, V.: Natural and anthropogenic changes in atmospheric CO2 over the last 1000 years from air in Antarctic ice and firn, J. Geophys. Res., 101, 4115–4128, 1996.
Finkel, R. C. and Nishiizumi, K.: Beryllium 10 concentrations in the Greenland Ice Sheet Project 2 ice core from 3–40 ka, J. Geophys. Res., 102, 26699–26706, https://doi.org/10.1029/97JC01282, 1997.
Flückiger, J., Monnin, E., Stauffer, B., Schwander, J., Stocker, T. F., Chappellaz, J., Raynaud, D., and Barnola, J. M.: High resolution Holocene N2O ice core record and its relationship with CH4 and CO2, Global Biogeochem. Cy., 16, 10-1–10-8, 2002.
Friedlingstein, P., Bopp, L., Rayner, P., Betts, R., Jones, C., von Bloh, W., Brovkin, V., Cadule, P., Doney, S., Eby, M., Weaver, A. J., Fung, I., John, J., Joos, F., Strassmann, K., Kato, T., Kawamiya, M., and Yoshikawa, C.: Climate-carbon cycle feedback analysis: results from the C4MIP model intercomparison, J. Climate, 19, 3337–3353, 2006.
Goosse, H.: Degrees of climate feedback, Nature, 463, 438–439, https://doi.org/10.1038/463438a, 2010.
Hamilton, G. S.: Mass balance and accumulation rate across Siple Dome, West Antarctica, Ann. Glaciol., 35, 102–106, 2002.
Higgins, J. A., Kurbatov, A. V., Spaulding, N. E., Brook, E., Introne, D. S., Chimiak, L. M., Yan, Y., Mayewski, P. A., and Bender, M. L.: Atmospheric composition 1 million years ago from blue ice in the Allan Hills, Antarctica, P. Natl. Acad. Sci. USA, 112, 6887–6891, https://doi.org/10.1073/pnas.1420232112, 2015.
Indermühle, A., Stocker, T. F., Joos, F., Fischer, H., Smith, H. J., Wahlen, M., Deck, B., Mastroianni, D., Tschumi, J., Blunier, T., Meyer, R., and Stauffer, B.: Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica, Nature, 398, 121–126, 1999.
IPCC: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F., Qin, D., Plattner, G. K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, https://doi.org/10.1017/CBO9781107415324, 2013.
Jouzel, J., Masson-Delmotte, V., Cattani, O., Dreyfus, G., Falourd, S., Hoffmann, G., Minster, B., Nouet, J., Barnola, J. M., Chappellaz, J., Fischer, H., Gallet, J. C., Johnsen, S., Leuenberger, M., Loulergue, L., Luethi, D., Oerter, H., Parrenin, F., Raisbeck, G., Raynaud, D., Schilt, A., Schwander, A., Selmo, E., Souchez, R., Spahni, R., Stauffer, B., Steffensen, J. P., Stenni, B., Stocker, T. F., Tison, J. L., Werner, M., and Wolff, E. W.: Orbital and Millennial Antarctic Climate Variability over the Past 800,000 Years, Science 317, 793–796, https://doi.org/10.1126/science.1141038, 2007.
Keeling, C. D.: The concentration and isotopic abundances of carbon dioxide in the atmosphere, Tellus, 12, 200–203, https://doi.org/10.3402/tellusa.v12i2.9366, 1960.
Kubota, K., Yokoyama, Y., Ishikawa, T., Obrochta, S., and Suzuki, A.: Larger CO2 source at the equatorial Pacific during the last deglaciation, Scientific Reports, 4, 5261, https://doi.org/10.1038/srep05261, 2014.
Lüthi, D., Le Floch, M., Bereiter, B., Blunier, T., Barnola, J.-M., Siegenthaler, U., Raynaud, D., Jouzel, J., Fischer, H., Kawamura, K., and Stocker, T. F.: High-resolution carbon dioxide concentration record 650,000–800,000 years before present, Nature, 453, 379–382, https://doi.org/10.1038/nature06949, 2008.
Lüthi, D., Bereiter, B., Stauffer, B., Winkler, R., Schwander, J., Kindler, P., Leuenberger, M., Kipfstuhl, S., Capron, E., and Landais, A.: CO2 and
Marchitto, T. M., Muscheler, R., Ortiz, J. D., Carriquiry, J. D., and van Geen, A.: Dynamical response of the tropical Pacific Ocean to solar forcing during the early Holocene, Science, 330, 1378–1381, 2010.
Marcott, S. A., Bauska, T. K., Buizert, C., Steig, E. J., Rosen, J. L., Cuffey, K. M., Fudge, T. J., Severinghaus, J. P., Ahn, J., Kalk, M. L., McConnell, J. R., Sowers, T., Taylor, K. C., White, J. W. C., and Brook, E. J.: Centennial-scale changes in the global carbon cycle during the last deglaciation, Nature, 514, 616–619, 2014.
McConnell, J. R.: Investigation of the atmosphere-snow transfer process for hydrogen peroxide, PhD dissertation, The University of Arizona, Tucson, 1997.
Meehl, G. A., Arblaster, J. M., Matthes, K., Sassi, F., and van Loon, H.: Amplifying the Pacific Climate System response to a small 11-year Solar Cycle forcing, Science, 325, 1114–1118, https://doi.org/10.1126/science.1172872, 2009.
Mekhaldi, F., Czymzik, M., Adolphi, F., Sjolte, J., Björck, S., Aldahan, A., Brauer, A., Martin-Puertas, C., Possnert, G., and Muscheler, R.: Radionuclide wiggle matching reveals a nonsynchronous early Holocene climate oscillation in Greenland and western Europe around a grand solar minimum, Clim. Past, 16, 1145–1157, https://doi.org/10.5194/cp-16-1145-2020, 2020.
Merz, N., Raible, C. C., and Woollings, T.: North Atlantic Eddy-Driven Jet in Interglacial and Glacial Winter Climates, J. Climate, 28, 3977–3997, https://doi.org/10.1175/JCLI-D-14-00525.1, 2015.
Mielnick, P. C. and Dugas, W. A.: Soil CO2 flux in a tallgrass prairie, Soil Biol. Biochem., 32, 221–228, 2000.
Monnin, E., Indermuhle, A., Dallenbach, A., Fluckiger, J., Stauffer, B., Stocker, T. F., Raynaud, D., and Barnola, J.-M.: Atmospheric CO2 concentrations over the last glacial termination, Science, 291, 112–114, 2001.
Monnin, E., Steig, E. J., Siegenthaler, U., Kawamura, K., Schwander, J., Stauffer, B., Stocker, T. F., Morse, D. C., Barnola, J.-M., Bellier, B., Raynaud, D., and Fischer, H.: Evidence for substantial accumulation rate variability in Antarctica during the Holocene through synchronization of CO2 in the Taylor Dome, Dome C and DML ice cores, Earth Planet. Sc. Lett., 224, 45–54, 2004.
Morse, D., Blankenship, D., Waddington, E., and Neumann, T.: A site for deep ice coring in West Antarctica: Results from aerogeophysical surveys and thermal-kinematic modeling, Ann. Glaciol., 35, 36–44, 2002.
Mortyn, P. G., Charles, C. D., Ninnemann, U. S., Ludwig, K., and Hodell, D. A.: Deep sea sedimentary analogues for the Vostok ice core, Geochem. Geophy. Geosy., 4, 8405, https://doi.org/10.1029/2002GC000475, 2003.
Neftel, A., Oeschger, H., Staffelbach, T., and Stauffer, B.: CO2 record in the Byrd ice core 50,000–5,000 years bp, Nature, 331, 609–611, https://doi.org/10.1038/331609a0, 1988.
Nehrbass-Ahles, C., Shin, J., Schmitt, J., Bereiter, B., Joos, F., Schilt, A., Schmidely, L., Silva, L., Teste, G., Grilli, R., Chappellaz, J., Hodell, D., Fischer, H., and Stocker, T. F.: Abrupt CO2 release to the atmosphere under both glacial and early interglacial conditions, Science, 369, 1000–1005, 2020.
Nielsen, S. H. H., Koc, N., and Crosta, X.: Holocene climate in the Atlantic sector of the southern ocean: Controlled by insolation or oceanic circulation?, Geology, 32, 317–320, 2004.
North Greenland Ice Core Project members: High-resolution record of northern hemisphere climate extending into the last interglacial period, Nature, 431, 147–151, 2004.
Petit, J. R., Jouzel, J., Raynaud, D., Barkov, N. I., Barnola, J.-M., Basile, I., Bender, M., Chapellaz, J., Davis, M., Delaygue, G., Delmotte, M., Kotlyakov, V. M., Legrand, M., Lipenkov, V. Y., Lorius, C., Pepin, L., Ritz, C., Saltzmann, E., and Stievenard, M.: Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica, Nature, 399, 429–436, https://doi.org/10.1038/20859, 1999.
Rasmussen, S. O., Andersen, K. K., Svensson, A. M., Steffensen, J. P., Vinther, B. M., Clausen, H. B., Siggaard-Andersen, M.-L., Johnsen, S. J., Larsen, L. B., Dahl-Jensen, D., Bigler, M., Rothlisberger, R., Fischer, H., Goto-Azuma, K., Hansson, M. E., and Ruth, U.: A new Greenland ice core chronology for the last glacial termination, J. Geophys. Res., 111, D06102, https://doi.org/10.1029/2005JD006079, 2006.
Rasmussen, S. O., Vinther, B. M., Clausen, H. B., and Andersen, K. K.: Early Holocene climate oscillations recorded in three Greenland ice cores, Quaternary Sci. Rev., 26, 1907–1914, 2007.
Reimer, P. J., Baillie, M. G, Bard, E., Beck, J. W., Buck, C. E., Blackwell, P. G., Burr, G. S., Cutler, K. B., Damon, P. E., Edwards, R. L., Fairbanks, R. G., Friedrich, M., Guilderson, T. P., Hogg, A. G., Hughen, K. A., Kromer, B., McCormac, G., Ramsey, C. B., Reimer, R. W., Remmele, S., Southon, J. R., Stuvier, M., Taylor, F. W., van der Plicht, J., and Weyhenmeyer, C. E.: IntCal04: A New Consensus Radiocarbon Calibration Dataset from 0–26 ka BP, Radiocarbon, 46, 1029–1058, 2004.
Reimer, P. J., Baillie, M. G. L., Bard, E., Bayliss, A., Beck, J. W., Blackwell, P. G., Bronk Ramsey, C., Buck, C. E., Burr, G. S., Edwards, R. L., Friedrich, M., Grootes, P. M., Guilderson, T. P., Hajdas, I., Heaton, T. J., Hogg, A. G., Hughen, K. A., Kaiser, K. F., Kromer, B., McCormac, F. G., Manning, S. W., Reimer, R. W., Richards, D. A., Southon, J. R., Talamo, S., Turney, C. S. M., van der Plicht, J., and Weyhenmeyer, C. E.: IntCal09 and Marine09 radiocarbon age calibration curves, 0–50,000 years cal BP, Radiocarbon, 51, 1111–1150, 2009.
Rosen, J. L., Brook, E. J., Severinghaus, J. P., Blunier, T., Mitchell, L. E., Lee, J. E., Edwards, J. S., and Gkinis, V.: An ice core record of near-synchronous global climate changes at the Bølling transition, Nat. Geosci., 7, 459–463, 2014.
Rubino, M., Etheridge, D. M., Trudinger, C. M., Allison, C. E., Battle, M. O., Langenfelds, R. L., Steele, L. P., Curran, M., Bender, M., White, J. W. C., Jenk, T. M., Blunier, T., and Francey, R. J.: A revised 1000 year atmospheric δ13C-CO2 record from Law Dome and South Pole, Antarctica, J. Geophys. Res., 118, 8382–8499, https://doi.org/10.1002/jgrd.50668, 2013.
Rubino, M., Etheridge, D. M., Thornton, D. P., Howden, R., Allison, C. E., Francey, R. J., Langenfelds, R. L., Steele, L. P., Trudinger, C. M., Spencer, D. A., Curran, M. A. J., van Ommen, T. D., and Smith, A. M.: Revised records of atmospheric trace gases CO2, CH4, N2O, and δ13C-CO2 over the last 2000 years from Law Dome, Antarctica, Earth Syst. Sci. Data, 11, 473–492, https://doi.org/10.5194/essd-11-473-2019, 2019.
Ruddiman, W. F.: The anthropogenic greenhouse era began thousands of years ago, Climatic Change, 61, 261–293, https://doi.org/10.1023/B:CLIM.0000004577.17928.fa, 2003.
Ruddiman, W. F.: The early anthropogenic hypothesis: challenges and responses, Rev. Geophys., 45, RG4001, https://doi.org/10.1029/2006RG000207, 2007.
Schwander, J., Jouzel, J., Hammer, C. U., Petit, J.-R., Udisti, R., and Wolff, E.: A tentative chronology for the EPICA Dome Concordia ice core, Geophys. Res. Lett., 28, 4243–4246, 2001.
Severinghaus, J. P., Grachev, A., and Battle, M.: Thermal fractionation of air in polar firn by seasonal temperature gradients, Geochem. Geophy. Geosy., 2, 1048–1024, https://doi.org/10.1029/2000GC000146, 2001.
Severinghaus, J. P., Beaudette, R., Headly, M. A., Taylor, K., and Brook, E. J.: Oxygen-18 of O2 records the impact of abrupt climate change on the terrestrial biosphere, Science, 324, 1431–1434, 2009.
Shackleton, S., Bereiter, B., Baggenstos, D., Bauska, T. K., Brook, E. J., Marcott, S. A., and Severinghaus, J. P.: Is the Noble Gas-Based Rate of Ocean Warming During the Younger Dryas Overestimated?, Geophys. Res. Lett., 46, 5928–5936, https://doi.org/10.1029/2019GL082971, 2019.
Siegenthaler, U., Monnin, E., Kawamura, K., Spahni, R., Schwander, J., Stauffer, B., Stocker, T. F., Barnola, J.-M., and Fischer, H.: Supporting evidence from the EPICA Dronning Maud Land ice core for atmospheric CO2 changes during the past millennium, Tellus B, 57, 51–57, https://doi.org/10.3402/tellusb.v57i1.16774, 2005.
Sigman, D. M. and Boyle, E. A.: Glacial/interglacial variations in atmospheric carbon dioxide, Nature, 407, 859–869, https://doi.org/10.1038/35038000, 2000.
Smith, H. J., Wahlen, M., Mastroianni, D., and Taylor, C. K.: The CO2 concentration of air trapped in GISP2 ice from the Last Glacial Maximum-Holocene transition, Geophys. Res. Lett., 24, 1–4, https://doi.org/10.1029/96GL03700, 1997a.
Smith, H. J., Wahlen, M., Mastroianni, D., Taylor, K., and Mayewski, P.: The CO2 concentration of air trapped in Greenland Ice Sheet Project 2 ice formed during periods of rapid climate change, J. Geophys. Res., 102, 26577–26582, https://doi.org/10.1029/97JC00163, 1997b.
Spahni, R., Schwander, J., Fluckinger, J., Stauffer, B., Chapellaz, J., and Raynaud, D.: The attenuation of fast atmospheric CH4 variations recorded in polar ice cores, Geophys. Res. Lett., 30, 1571, https://doi.org/10.1029/2003GL017093, 2003.
Stephens, B. B. and Keeling, R. F.: The influence of Antarctic sea ice on glacial–interglacial CO2 variations, Nature, 404, 171–174, https://doi.org/10.1038/35004556, 2000.
Tabacco, I. E., Passerini, A., Corbelli, F., and Gorman, M.: Determination of the surface and bed topography at Dome C, East Antarctica, J. Glaciol., 44, 185–191, 1998.
Takahashi, T., Olafsson, J., Goddard, J. G., Chipman, D. W., and Sutherland, S. C.: Seasonal variation of CO2 and nutrients in the high-latitude surface oceans: A comparative study, Global Biogeochem. Cy., 7, 843–878, https://doi.org/10.1029/93GB02263, 1993.
Taylor, K. C., White, J. W. C., Severinghaus, J. P., Brook, E. J., Mayewski, P. A., Alley, R. B., Steig, E. J., Spencer, M. K., Meyerson, E., Meese, D. A., Lamorey, G. W., Grachev, A., Gow, A. J., and Barnett, B. A.: Abrupt climate change around 22 ka on the Siple Coast of Antarctica, Quaternary Sci. Rev., 23, 7–15, https://doi.org/10.1016/j.quascirev.2003.09.004, 2004.
The EPICA Dome C 2001-02 Science and Drilling Teams: Extending the ice core record beyond half a million years, Eos T. Am. Geophys. Un., 83, 509–517, 2002.
Tschumi, J. and Stauffer, B.: Reconstructing past atmospheric CO2 concentration based on ice-core analyses: open questions due to in situ production of CO2 in the ice, J. Glaciol., 46, 45–53, 2000.
Vonmoos, M., Beer, J., and Muscheler, R.: Large variations in Holocene solar activity: Constraints from 10Be in the Greenland Ice Core Project ice core, J. Geophys. Res.-Space, 111, A10105, https://doi.org/10.1029/2005JA011500, 2006.
Waddington, E. and Morse, D. L.: Spatial variations of local climate at Taylor Dome, Antarctica: Implications for paleoclimate from ice cores, Ann. Glaciol., 20, 219–225, https://doi.org/10.3189/172756494794587014, 1994.
Yang, J.-W., Ahn, J., Brook, E. J., and Ryu, Y.: Atmospheric methane control mechanisms during the early Holocene, Clim. Past, 13, 1227–1242, https://doi.org/10.5194/cp-13-1227-2017, 2017.
Short summary
We present a new and highly resolved atmospheric CO2 record from the Siple Dome ice core, Antarctica, over the early Holocene (11.7–7.4 ka). Atmospheric CO2 decreased by ~10 ppm from 10.9 to 7.3 ka, but the decrease was punctuated by local minima at 11.1, 10.1, 9.1, and 8.3 ka. We found millennial CO2 variability of 2–6 ppm, and the millennial CO2 variations correlate with proxies for solar forcing and local climate in the Southern Ocean, North Atlantic, and eastern equatorial Pacific.
We present a new and highly resolved atmospheric CO2 record from the Siple Dome ice core,...
