@article{Yit:2016:10.1002/2015JC011486,
author = {Yit, Sen Bull C and van, Sebille E},
doi = {10.1002/2015JC011486},
journal = {Journal of Geophysical Research: Oceans},
pages = {1626--1639},
title = {Sources, fate, and pathways of Leeuwin Current water in the Indian Ocean and Great Australian Bight: A Lagrangian study in an eddy-resolving ocean model},
url = {http://dx.doi.org/10.1002/2015JC011486},
volume = {121},
year = {2016}
}

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TY  - JOUR
AB  - The Leeuwin Current is the dominant circulation feature in the eastern Indian Ocean, transporting tropical and subtropical water southward. Whilst it is known that the Leeuwin Current draws its water from a multitude of sources, existing Indian Ocean circulation schematics have never quantified the fluxes of tropical and subtropical source water flowing into the Leeuwin Current. This paper uses virtual Lagrangian particles to quantify the transport of these sources along the Leeuwin Current's mean pathway. Here, the pathways and exchange of Leeuwin Current source waters across six coastally bound sectors on the south-west Australian coast are analysed. This constitutes the first quantitative assessment of Leeuwin Current pathways within an offline, 50-year integration time, eddy-resolving global ocean model simulation. Along the Leeuwin Current's pathway we find a mean poleward transport of 3.7 Sv in which the tropical sources account for 60-78% of the transport. Whilst the net transport is small, we see large transports flowing in and out of all the offshore boundaries of the Leeuwin Current sectors. Along the Leeuwin Current's pathway, we find that water from the Indonesian Throughflow contributes 50-66% of the seasonal signal. By applying conditions on the routes particles take entering the Leeuwin Current, we find particles are more likely to travel offshore north of 30°S, while south of 30°S particles are more likely to continue downstream. We find a 0.2 Sv pathway of water from the Leeuwin Current's source regions, flowing through the entire Leeuwin Current pathway into the Great Australian Bight.
AU  - Yit,Sen Bull C
AU  - van,Sebille E
DO  - 10.1002/2015JC011486
EP  - 1639
PY  - 2016///
SN  - 2169-9291
SP  - 1626
TI  - Sources, fate, and pathways of Leeuwin Current water in the Indian Ocean and Great Australian Bight: A Lagrangian study in an eddy-resolving ocean model
T2  - Journal of Geophysical Research: Oceans
UR  - http://dx.doi.org/10.1002/2015JC011486
UR  - http://hdl.handle.net/10044/1/29476
VL  - 121
ER  - 

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