Articles | Volume 16, issue 4
https://doi.org/10.5194/gmd-16-1231-2023
Special issue:
https://doi.org/10.5194/gmd-16-1231-2023
Model description paper
 | 
22 Feb 2023
Model description paper |  | 22 Feb 2023

Simulating marine neodymium isotope distributions using Nd v1.0 coupled to the ocean component of the FAMOUS–MOSES1 climate model: sensitivities to reversible scavenging efficiency and benthic source distributions

Suzanne Robinson, Ruza F. Ivanovic, Lauren J. Gregoire, Julia Tindall, Tina van de Flierdt, Yves Plancherel, Frerk Pöppelmeier, Kazuyo Tachikawa, and Paul J. Valdes

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Optimisation of the marine Nd isotope scheme in the ocean component of the FAMOUS general circulation model
Suzanne Robinson, Ruza Ivanovic, Lauren Gregoire, Lachlan Astfalck, Tina van de Flierdt, Yves Plancherel, Frerk Pöppelmeier, and Kazuyo Tachikawa
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Cited articles

Abbott, A. N.: A benthic flux from calcareous sediments results in non-conservative neodymium behavior during lateral transport: A study from the Tasman Sea, Geology, 47, 363–366, https://doi.org/10.1130/g45904.1, 2019. 
Abbott, A. N., Haley, B. A., and McManus, J.: Bottoms up: Sedimentary control of the deep North Pacific Ocean's εNd signature, Geology, 43, 1035–1038, https://doi.org/10.1130/G37114.1, 2015a. 
Abbott, A. N., Haley, B. A., McManus, J., and Reimers, C. E.: The sedimentary flux of dissolved rare earth elements to the ocean, Geochim. Cosmochim. Ac., 154, 186–200, https://doi.org/10.1016/j.gca.2015.01.010, 2015b. 
Abbott, A. N., Löhr, S., and Trethewy, M.: Are clay minerals the primary control on the oceanic rare earth element budget?, Front. Mar. Sci., 6, 2296–7745, https://doi.org/10.3389/fmars.2019.00504, 2019. 
Anderson, S. P.: Glaciers show direct linkage between erosion rate and chemical weathering fluxes, Geomorphology, 67, 147–157, https://doi.org/10.1016/j.geomorph.2004.07.010, 2005. 
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We present the implementation of neodymium (Nd) isotopes into the ocean model of FAMOUS (Nd v1.0). Nd fluxes from seafloor sediment and incorporation of Nd onto sinking particles represent the major global sources and sinks, respectively. However, model–data mismatch in the North Pacific and northern North Atlantic suggest that certain reactive components of the sediment interact the most with seawater. Our results are important for interpreting Nd isotopes in terms of ocean circulation.
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