A 2-LAYER MODEL OF WATER EXCHANGE THROUGH THE DARDANELLES STRAIT

Date

1989-01-01

Author

OGUZ, T
SUR, HI

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Water exchange through the Dardanelles Strait is studied by a two-layer model which considers the laterally averaged flow formed by two homogeneous layers of differing density separated by an entraining interface. The model response is discussed in terms of observations from the strait. In particular, the observed asymmetry and rapid transition at the interface depth as weil as the intense mixing which occurs in the southwestern reaches of the strait are found to be related to the hydraulic characteristics of the flow. It appears that the Dardanelles exercises efficient hydraulic controls on the upper-layer flow, due to contraction at Nara Pass and abrupt expansion of the width at its Aegean exit. Supercritical regions of the upper-layer flow downstream of the control sections are identified as being the regions of increased currents, shallower surface layer depth and intense net interfacial transport of lower-layer water into the upper layer. Sensitivity studies show that the value of the interfacial friction coefficient is an important parameter influencing the structure of the water exchange along the strait.

Subject Keywords

Oceanography, Oceanography

URI

https://hdl.handle.net/11511/65026

Journal

OCEANOLOGICA ACTA

Collections

Graduate School of Marine Sciences, Article

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Citation Formats

T. OGUZ and H. SUR, “A 2-LAYER MODEL OF WATER EXCHANGE THROUGH THE DARDANELLES STRAIT,” OCEANOLOGICA ACTA, pp. 23–31, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65026.