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BG | Articles | Volume 17, issue 19
Biogeosciences, 17, 4745–4767, 2020
https://doi.org/10.5194/bg-17-4745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 17, 4745–4767, 2020
https://doi.org/10.5194/bg-17-4745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 01 Oct 2020

Research article | 01 Oct 2020

Elevated sources of cobalt in the Arctic Ocean

Randelle M. Bundy et al.

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Cited articles

Aagaard, K. and Carmack, E. C.: The role of sea ice and other fresh water in the Arctic circulation, J. Geophys. Res.-Oceans, 94, 14485–14498, 1989. 
Adjou, M.: Data inventory for cruise CCGS Amundsen 0903 (ArcticNet, GIPY14), available at: https://www.bodc.ac.uk/geotraces/data/inventories/0903/, last access: 10 August 2020. 
Aumont, O., van Hulten, M., Roy-Barman, M., Dutay, J.-C., Éthé, C., and Gehlen, M.: Variable reactivity of particulate organic matter in a global ocean biogeochemical model, Biogeosciences, 14, 2321–2341, https://doi.org/10.5194/bg-14-2321-2017, 2017. 
Baars, O. and Croot, P. L.: Dissolved cobalt speciation and reactivity in the eastern tropical North Atlantic, Mar. Chem., 173, 310–319, https://doi.org/10.1016/j.marchem.2014.10.006, 2015. 
Bauch, D., Erlenkeuser, H., and Andersen, N.: Water mass processes on Arctic shelves as revealed from δ18O of H2O, Global Planet. Change, 48, 165–174, 2005. 
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Cobalt (Co) is an essential nutrient for ocean microbes and is scarce in most areas of the ocean. This study measured Co concentrations in the Arctic Ocean for the first time and found that Co levels are extremely high in the surface waters of the Canadian Arctic. Although the Co primarily originates from the shelf, the high concentrations persist throughout the central Arctic. Co in the Arctic appears to be increasing over time and might be a source of Co to the North Atlantic.
Cobalt (Co) is an essential nutrient for ocean microbes and is scarce in most areas of the...
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