Articles | Volume 12, issue 4
Geosci. Model Dev., 12, 1491–1523, 2019

Special issue: The CSIRO Mk3L climate system model

Geosci. Model Dev., 12, 1491–1523, 2019

Model description paper 16 Apr 2019

Model description paper | 16 Apr 2019

Ocean carbon and nitrogen isotopes in CSIRO Mk3L-COAL version 1.0: a tool for palaeoceanographic research

Pearse J. Buchanan et al.

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Cited articles

Altabet, M. A. and Francois, R.: Nitrogen isotope biogeochemistry of the Antarctic Polar Frontal Zone at 170 degrees W, Deep-Sea Res. Pt. II, 48, 4247–4273,, 2001. a, b
Bohlen, L., Dale, A. W., and Wallmann, K.: Simple transfer functions for calculating benthic fixed nitrogen losses and C:N:P regeneration ratios in global biogeochemical models, Global Biogeochem. Cy., 26, GB3029,, 2012. a, b
Boudreau, B. P.: Carbonate dissolution rates at the deep ocean floor, Geophys. Res. Lett., 40, 744–748,, 2013. a
Boyd, P. W., Strzepek, R. F., Ellwood, M. J., Hutchins, D. A., Nodder, S. D., Twining, B. S., and Wilhelm, S. W.: Why are biotic iron pools uniform across high- and low-iron pelagic ecosystems?, Global Biogeochem. Cy., 29, 1028–1043,, 2015. a
Brandes, J. A. and Devol, A. H.: A global marine-fixed nitrogen isotopic budget: Implications for Holocene nitrogen cycling, Global Biogeochem. Cy., 16, 67–1–67–14,, 2002. a, b, c
Short summary
Oceanic sediment cores are commonly used to understand past climates. The composition of the sediments changes with the ocean above it. An understanding of oceanographic conditions that existed many thousands of years ago, in some cases many millions of years ago, can therefore be extracted from sediment cores. We simulate two chemical signatures (13C and 15N) of sediment cores in a model. This study assesses the model before it is applied to reinterpret the sedimentary record.