scholarly journals Effect of salinity on density in the Leeuwin Current System

1998 ◽  
Vol 103 (C11) ◽  
pp. 24693-24721 ◽  
Author(s):  
Mary L. Batteen ◽  
Ming-Jer Huang
Author(s):  
Yinghui He ◽  
Ming Feng ◽  
Jieshuo Xie ◽  
Qingyou He ◽  
Junliang Liu ◽  
...  

2007 ◽  
Vol 54 (8-10) ◽  
pp. 797-817 ◽  
Author(s):  
Catia M. Domingues ◽  
Mathew E. Maltrud ◽  
Susan E. Wijffels ◽  
John A. Church ◽  
Matthias Tomczak

2020 ◽  
Vol 54 (9-10) ◽  
pp. 4263-4277
Author(s):  
Toshiaki Shinoda ◽  
Weiqing Han ◽  
Luis Zamudio ◽  
Xue Feng

2008 ◽  
Vol 55 (3) ◽  
pp. 261-276 ◽  
Author(s):  
Michael J. Meuleners ◽  
Gregory N. Ivey ◽  
Charitha B. Pattiaratchi

2013 ◽  
Vol 118 (7) ◽  
pp. 3608-3621 ◽  
Author(s):  
Vincent Rossi ◽  
Ming Feng ◽  
Charitha Pattiaratchi ◽  
Moninya Roughan ◽  
Anya M. Waite

2017 ◽  
Vol 47 (3) ◽  
pp. 583-602 ◽  
Author(s):  
Ryo Furue ◽  
Kévin Guerreiro ◽  
Helen E. Phillips ◽  
Julian P. McCreary ◽  
Nathaniel L. Bindoff

AbstractThe Leeuwin Current System (LCS) along the coast of Western Australia consists of the poleward-flowing Leeuwin Current (LC), the equatorward-flowing Leeuwin Undercurrent (LUC), and neighboring flows in the south Indian Ocean (SIO). Using geostrophic currents obtained from a highly resolved (⅛°) hydrographic climatology [CSIRO Atlas of Regional Seas (CARS)], this study describes the spatial structure and annual variability of the LC, LUC, and SIO zonal currents, estimates their transports, and identifies linkages among them. In CARS, the LC is supplied partly by water from the tropics (an annual mean of 0.3 Sv; 1 Sv ≡ 106 m3 s−1) but mostly by shallow (200 m) eastward flows in the SIO (4.7 Sv), and it loses water by downwelling across the bottom of this layer (3.4 Sv). The downwelling is so strong that, despite the large SIO inflow, the horizontal transport of the LC does not much increase to the south (from 0.3 Sv at 22°S to 1.5 Sv at 34°S). This LC transport is significantly smaller than previously reported. The LUC is supplied by water from south of Australia (0.2 Sv), by eastward inflow from the SIO south of 28°S (1.6 Sv), and by the downwelling from the LC (1.6 Sv) and in response strengthens northward, reaching a maximum near 28°S (3.4 Sv). North of 28°S it loses water by outflow into subsurface westward flow (−3.6 Sv between 28° and 22°S) and despite an additional downwelling from the LC (1.9 Sv), it decreases to the north (1.7 Sv at 22°S). The seasonality of the LUC is described for the first time.


2014 ◽  
Vol 44 (7) ◽  
pp. 1798-1810 ◽  
Author(s):  
Fabian Schloesser

Abstract Recently, Furue et al. explored analytic solutions to a dynamical model for the Leeuwin Current system (LCS) off the coast of Western Australia. Their linear, variable density, two-layer model reduces to a one-layer system near the coast. The circulation is determined by matching solutions in the coastal and offshore regions across the “grounding line” and displays many features observed in the LCS. However, it does not include a Leeuwin Undercurrent (LUC). Here, that model is extended considering an across-shore density gradient (front) caused by relatively light, tropical water being carried poleward by the Leeuwin Current (LC). As a result of including the front, the LCS circulation changes considerably; the LC deepens and strengthens significantly toward the pole, and the LCS now includes an equatorward LUC on the offshore edge of the LC. Differences in density and sea surface height across the front both contribute to the pressure gradient driving the LUC.


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