Extreme transport velocities of Antarctic Bottom Water flow through the deep Vema Channel
- Authors: Morozov E.G.1, Frey D.I.1, Neiman V.G.1, Makarenko N.I.2, Tarakanov R.Y.1
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Affiliations:
- P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
- Lavrentyev Institute of Hydrodynamics of Siberian Branch of Russian Academy of Sciences
- Issue: Vol 486, No 4 (2019)
- Pages: 485-488
- Section: Geography
- URL: https://journals.eco-vector.com/0869-5652/article/view/14464
- DOI: https://doi.org/10.31857/S0869-56524864485-488
- ID: 14464
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Abstract
In April 2017 and in October 2018, a Russian expedition on the R/V “Akademik Sergey Vavilov” in the South-West Atlantic carried out measurements of temperature, salinity, and velocity over a standard section across the deep Vema Channel at 31(градус) 12(минут) S. Extremely high and extremely low velocities and transports of Atlantic Bottom Water (AABW) in the entire history of our observations over this section were found. In 2017, the maximum speed over the section reached 55 cm/s, and in 2018, it did not exceed 30 cm/s. In 2018, a core of high velocities in the bottom layers of the channel characteristic of the AABW flow was not found.
About the authors
E. G. Morozov
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Author for correspondence.
Email: egmorozov@mail.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
D. I. Frey
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: egmorozov@mail.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
V. G. Neiman
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: egmorozov@mail.ru
Corresponding Member of the Russian Academy of Sciences
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997N. I. Makarenko
Lavrentyev Institute of Hydrodynamics of Siberian Branch of Russian Academy of Sciences
Email: egmorozov@mail.ru
Russian Federation, 15, Lavrentiev prospect, Novosibirsk, 630090
R. Yu. Tarakanov
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: egmorozov@mail.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
References
- Hogg, N.G., Siedler G., Zenk W. // J. Phys. Oceanogr. 1999. V. 29. P. 145-157
- Zenk W., Hogg N. // Deep-Sea Res. 1996. V. 43. № 9. P. 1461-1473.
- Zenk W., Speer K.G., Hogg N.G. // Deep-Sea Res. 1993. V. 40. P. 1925-1933.
- Morozov E., Demidov A., Tarakanov R., Zenk W. Abyssal Channels in the Atlantic Ocean: Water Structure and Flows. Dordrecht: Springer, 2010. 266 p.
- Океанология Физика океана. Т. 1. Гидрофизика океана / под ред. В.М. Каменковича, А.С. Монина. М.: Наука, 1978. 456 с.
- Бышев В.И., Нейман В.Г. // Исследование динамики глубинных вод по данным инструментальных наблюдений в Южной Атлантике. В кн. Фундаментальные исследования океанов и морей. М.: Наука, 2006. С. 34-40.
- Морозов Е.Г., Демидов А.Н., Тараканов Р.Ю. // ДАН. 2008. Т. 422. № 6. С. 815-818.
- Морозов Е.Г., Фрей Д.И., Кампос Э. // Фундам. и прикл. гидрофизика. 2018. Т. 11. № 2. С. 94-102.
- Фрей Д.И., Фомин В.В., Дианский Н.А., Морозов Е.Г., Нейман В.Г. // ДАН. 2017. Т. 473. № 1. С. 104-107.
- Тараканов Р.Ю., Морозов Е.Г. // Океанология. 2015. Т. 55. № 2. С. 173-181.
- Jungclaus J., Vanicek M. // J. Geophys. Res., 1999. V. 104. № C9. P. 21123-21136.
- Zenk W., Visbeck M. // Deep Sea Res. II. 2013. V. 85. P. 244-260.
- Zenk W., Morozov E. // Geophys. Res. Lett., 2007. V. 34. № 14. L14607.