Widespread intense turbulent mixing in the Southern Ocean
Widespread intense turbulent mixing in the Southern Ocean
Observations of internal wave velocity fluctuations show that enhanced turbulent mixing over rough topography in the Southern Ocean is remarkably intense and widespread. Mixing rates exceeding background values by a factor of 10 to 1000 are common above complex bathymetry over a distance of 2000 to 3000 kilometers at depths greater than 500 to 1000 meters. This suggests that turbulent mixing in the Southern Ocean may contribute crucially to driving the upward transport of water closing the ocean's meridional overturning circulation, and thus needs to be represented in numerical simulations of the global ocean circulation and the spreading of biogeochemical tracers.
210-213
Naveira Garabato, A.C.
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Polzin, K.L.
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King, B.A.
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Heywood, K.J.
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Visbeck, M.
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2004
Naveira Garabato, A.C.
97c0e923-f076-4b38-b89b-938e11cea7a6
Polzin, K.L.
a6ad08a3-7577-4b70-9db7-65926301df6f
King, B.A.
d9d50671-3777-453b-9f85-c67a56a4d8b8
Heywood, K.J.
4eeebe72-3857-4729-8d6a-7ece46d37cd5
Visbeck, M.
d0fb088d-6ef6-4772-99e9-8609e792a6e9
Naveira Garabato, A.C., Polzin, K.L., King, B.A., Heywood, K.J. and Visbeck, M.
(2004)
Widespread intense turbulent mixing in the Southern Ocean.
Science, 303 (5655), .
(doi:10.1126/science.1090929).
Abstract
Observations of internal wave velocity fluctuations show that enhanced turbulent mixing over rough topography in the Southern Ocean is remarkably intense and widespread. Mixing rates exceeding background values by a factor of 10 to 1000 are common above complex bathymetry over a distance of 2000 to 3000 kilometers at depths greater than 500 to 1000 meters. This suggests that turbulent mixing in the Southern Ocean may contribute crucially to driving the upward transport of water closing the ocean's meridional overturning circulation, and thus needs to be represented in numerical simulations of the global ocean circulation and the spreading of biogeochemical tracers.
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Published date: 2004
Organisations:
National Oceanography Centre
Identifiers
Local EPrints ID: 1378
URI: http://eprints.soton.ac.uk/id/eprint/1378
ISSN: 0036-8075
PURE UUID: 5aa11bb0-ec6c-4aa4-86dc-b50bc477d9d7
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Date deposited: 06 May 2004
Last modified: 16 Mar 2024 03:48
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Contributors
Author:
K.L. Polzin
Author:
B.A. King
Author:
K.J. Heywood
Author:
M. Visbeck
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