Ocean Science
Ocean Science
OS
Articles | Volume 19, issue 5
Articles | Volume 19, issue 5
https://doi.org/10.5194/os-19-1453-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-19-1453-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 5
Technical note
 | 
18 Oct 2023
Technical note |  | 18 Oct 2023

Technical note: Determining Arctic Ocean halocline and cold halostad depths based on vertical stability

Enrico P. Metzner and Marc Salzmann

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Cited articles

Aagaard, K., Coachman, L. K., and Carmack, E.: On the halocline of the Arctic Ocean, Deep-Sea Res. Pt. I, 28, 529–545, https://doi.org/10.1016/0198-0149(81)90115-1, 1981. a, b, c, d, e, f
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research: Meereisportal, https://www.meereisportal.de, last access: 17 October 2023. a
Alkire, M. B., Polyakov, I., Rember, R., Pnyushkov, A., Ivanov, V., and Ashik, I.: Combining physical and geochemical methods to investigate lower halocline water formation and modification along the Siberian continental slope, Ocean Sci., 13, 983–995, https://doi.org/10.5194/os-13-983-2017, 2017. a, b
Anderson, L. G., Andersson, P. S., Björk, G., Jones, E. P., Jutterström, S., and Wåhlström, I.: Source and formation of the upper halocline of the Arctic Ocean, J. Geophys. Res.-Oceans, 118, 410–421, https://doi.org/10.1029/2012jc008291, 2013. a, b
Athanase, M., Provost, C., Artana, C., Pérez-Hernández, M. D., Sennéchael, N., Bertosio, C., Garric, G., Lellouche, J.-M., and Prandi, P.: Changes in Atlantic Water circulation patterns and volume transports north of Svalbard over the last 12 years (2008–2020), J. Geophys. Res.-Oceans, 126, e2020JC016825, https://doi.org/10.1029/2020jc016825, 2021. a
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The Arctic Ocean cold halocline separates the cold surface mixed layer from the underlying warm Atlantic Water, and thus provides a precondition for sea ice formation. Here, we introduce a new method for detecting the halocline base and compare it to two existing methods. We show that the largest differences between the methods are found in the regions that are most prone to a halocline retreat in a warming climate, and we discuss the advantages and disadvantages of the three methods.
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