| XIA DONGXING,LIU ZHENXIA. 1986. FORMATION MECHANISM AND DEVELOPMENTAL CONDITIONS OF TIDAL CURRENT RIDGES. Acta Oceanologica Sinica, (2):247－255 |
| FORMATION MECHANISM AND DEVELOPMENTAL CONDITIONS OF TIDAL CURRENT RIDGES |
| FORMATION MECHANISM AND DEVELOPMENTAL CONDITIONS OF TIDAL CURRENT RIDGES |
| Received:August 29, 1984 Revised:August 04, 1985 |
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| Abstract: |
| This paper discusses mainly the formation mechanism and developmental conditions of tidal current ridges.The tidal current velocities of 1-3.5 knots and the supply of abundant loose sediments are the prerequisites for the formation of the tidal current ridges.The hydrodynamic mechanism is similar to that of straight rivers.In the trough between two ridges the tidal current moves forward in the form of two helical flows.The two flows converge and sink in the centre of the trough,and erode the trough deeply; they diverge and rise on the two sides of the trough,and accumulate the ridges.When the supply material and relief come to the dynamic equilibrium,the development of ridges keeps steady. |
| 中文摘要: |
| This paper discusses mainly the formation mechanism and developmental conditions of tidal current ridges.The tidal current velocities of 1-3.5 knots and the supply of abundant loose sediments are the prerequisites for the formation of the tidal current ridges.The hydrodynamic mechanism is similar to that of straight rivers.In the trough between two ridges the tidal current moves forward in the form of two helical flows.The two flows converge and sink in the centre of the trough,and erode the trough deeply; they diverge and rise on the two sides of the trough,and accumulate the ridges.When the supply material and relief come to the dynamic equilibrium,the development of ridges keeps steady. |
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