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The origin of Intermediate and Subpolar Mode Waters crossing the Atlantic equator in OCCAM

The origin of Intermediate and Subpolar Mode Waters crossing the Atlantic equator in OCCAM
The origin of Intermediate and Subpolar Mode Waters crossing the Atlantic equator in OCCAM
The origin of the intermediate waters that cross the equatorial Atlantic as part of the return flow for North Atlantic Deep Water was studied in a high resolution global ocean model using a Lagrangian particle following technique. Most of these waters are subducted in the southeast Indian Ocean. Less than twenty percent comes directly from Drake Passage without looping into the Indian Ocean; the majority being provided by Agulhas leakage. Most of the intermediate waters that subduct in the South Atlantic do not follow the South Atlantic/Indian Ocean supergyre, but remain within the Antarctic Circumpolar Current, and gradually transform into Circumpolar Deep Water by diapycnal mixing.
0094-8276
L06602-[4pp]
Drijfhout, S.S.
a5c76079-179b-490c-93fe-fc0391aacf13
Donners, J.
4c955edf-4ba2-4091-ab0f-9015f2407475
de Ruijter, W.P.M.
85dd535e-71a9-4397-b3d7-b1c61dfd9758
Drijfhout, S.S.
a5c76079-179b-490c-93fe-fc0391aacf13
Donners, J.
4c955edf-4ba2-4091-ab0f-9015f2407475
de Ruijter, W.P.M.
85dd535e-71a9-4397-b3d7-b1c61dfd9758

Drijfhout, S.S., Donners, J. and de Ruijter, W.P.M. (2005) The origin of Intermediate and Subpolar Mode Waters crossing the Atlantic equator in OCCAM. Geophysical Research Letters, 32 (6), L06602-[4pp]. (doi:10.1029/2004GL021851).

Record type: Article

Abstract

The origin of the intermediate waters that cross the equatorial Atlantic as part of the return flow for North Atlantic Deep Water was studied in a high resolution global ocean model using a Lagrangian particle following technique. Most of these waters are subducted in the southeast Indian Ocean. Less than twenty percent comes directly from Drake Passage without looping into the Indian Ocean; the majority being provided by Agulhas leakage. Most of the intermediate waters that subduct in the South Atlantic do not follow the South Atlantic/Indian Ocean supergyre, but remain within the Antarctic Circumpolar Current, and gradually transform into Circumpolar Deep Water by diapycnal mixing.

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Published date: March 2005
Organisations: Ocean and Earth Science

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Local EPrints ID: 349162
URI: http://eprints.soton.ac.uk/id/eprint/349162
ISSN: 0094-8276
PURE UUID: 0a21f1b0-28e2-4f4e-9974-1b8a3d2cb5fc

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Date deposited: 26 Feb 2013 11:02
Last modified: 07 Jan 2022 21:25

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Contributors

Author: S.S. Drijfhout
Author: J. Donners
Author: W.P.M. de Ruijter

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