Articles | Volume 17, issue 1
https://doi.org/10.5194/os-17-111-2021
https://doi.org/10.5194/os-17-111-2021
Research article
 | 
18 Jan 2021
Research article |  | 18 Jan 2021

Circulation timescales of Atlantic Water in the Arctic Ocean determined from anthropogenic radionuclides

Anne-Marie Wefing, Núria Casacuberta, Marcus Christl, Nicolas Gruber, and John N. Smith

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Cited articles

Alkire, M. B., Rember, R., and Polyakov, I.: Discrepancy in the Identification of the Atlantic/Pacific Front in the Central Arctic Ocean: NO Versus Nutrient Relationships, Geophys. Res. Lett., 46, 3843–3852, https://doi.org/10.1029/2018GL081837, 2019. a, b, c
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Casacuberta, N., Masqué, P., Henderson, G., Rutgers van-der-Loeff, M., Bauch, D., Vockenhuber, C., Daraoui, A., Walther, C., Synal, H.-A., and Christl, M.: First 236U Data from the Arctic Ocean and Use of 236U/238U and 129I/236U as a New Dual Tracer, Earth Planet Sc. Lett., 440, 127–134, https://doi.org/10.1016/j.epsl.2016.02.020, 2016. a, b, c, d, e
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Short summary
Atlantic Water that carries heat and anthropogenic carbon into the Arctic Ocean plays an important role in the Arctic sea-ice cover decline, but its pathways and travel times remain unclear. Here we used two radionuclides of anthropogenic origin (129I and 236U) to track Atlantic-derived waters along their way through the Arctic Ocean, estimating their travel times and mixing properties. Results help to understand how future changes in Atlantic Water properties will spread through the Arctic.