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      Comment on “Synchronous records of pCO2 and Δ14C suggest rapid, ocean-derived pCO2 fluctuations at the onset of Younger Dryas” by Steinthorsdottir et al

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      General Information:

      Citation:
      Köhler, P. , Fischer, H. , Schmitt, J. , Brook, E. J. and Marcott, S. A. (2015): Comment on “Synchronous records of pCO2 and Δ14C suggest rapid, ocean-derived pCO2 fluctuations at the onset of Younger Dryas” by Steinthorsdottir et al , Quaternary Science Reviews, 107 , pp. 267-270 . doi: 10.1016/j.quascirev.2014.09.024
      Cite this page as:
      hdl:10013/epic.44476
      DOI:
      https://doi.org/10.1016/j.quascirev.2014.09.024
      Official URL:
      http://www.sciencedirect.com/science/article/pii/S0277379114003722
      Contact Email:
      Peter.Koehler@awi.de
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      Cite this document as:
      hdl:10013/epic.44476.d002
      Abstract:

      Steinthorsdottir et al. (2014) used a previously published stomata-based CO2 record (Steinthorsdottir et al., 2013) to argue for a large, abrupt change in atmospheric carbon dioxide at the onset of the Younger Dryas (YD) cold interval. Their record implies a 50 ppm CO2 rise followed by a decline by 100 ppm. They compare their results to a hypothetical and highly unlikely simulation sce- nario in which vertical mixing in the ocean is increased by a factor of 100 and wind strength by a factor of 7. They furthermore compare their stomata-based CO2 record with the ice core CO2 re- cord derived from EPICA Dome C (EDC). We here question their interpretation.

      Further Details:

      Item Type:
      Article
      Authors:
      Köhler, Peter ; Fischer, Hubertus ; Schmitt, Jochen ; Brook, Edward J. ; Marcott, Shaun A.
      Divisions:
      AWI Organizations > Geosciences > Glaciology
      Primary Division:
      Organizations > AWI Organizations > Geosciences > Glaciology
      Programs:
      Helmholtz Research Programs > PACES II (2014-2018) > TOPIC 3: The earth system from a polar perspective > WP 3.1: Circumpolar climate variability and global teleconnections at seasonal to orbital time scales
      Primary Topic:
      Helmholtz Programs > Helmholtz Research Programs > PACES II (2014-2018) > TOPIC 3: The earth system from a polar perspective > WP 3.1: Circumpolar climate variability and global teleconnections at seasonal to orbital time scales
      Eprint ID:
      36707
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