Model for the Formation and Evolution of Sand Ridges on the Continental Shelf

Restrepo, Juan M.; Bona, Jerry L.

doi:10.21236/ada256618

Cited by 1 publication

(3 citation statements)

References 31 publications

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“…Hence, within the boundary layer, 1Vu1 (< 1 ~~1 , 1V2ul < IuJ, etc. We conclude that the transverse momentum in (56) The velocity W 'must also be small. The continuity statement in (56) suggests that the boundary layer and ZJ are of equal order of smallness.…”

Section: Hydrodynamics Of the Boundary Layermentioning

confidence: 73%

“…We conclude that the transverse momentum in (56) The velocity W 'must also be small. The continuity statement in (56) suggests that the boundary layer and ZJ are of equal order of smallness. Therefore, none of the terms on the left-hand side of ( 57…”

Section: Hydrodynamics Of the Boundary Layermentioning

confidence: 73%

“…Our interest here is limited to the lowest-order theory. We refer the interested reader to [56] for the details of the higher-order theory.…”

Section: Description Of the Bottom Topography And The Wavepacket Desc...mentioning

confidence: 99%

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Three-dimensional model for the formation of longshore sand structures on the continental shelf

Restrepo

Bona

1995

Nonlinearity

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A model is proposed for the formation and evolution of three-dimensional sedimentary SrmCNres such as longshore sand ridges on the continental shelf in water deeper than that of the shoaling repion. Owing Io the striking similarity between the bar spacing and the length scales in which interactions among the most energetic modes of shallow water waves take place. we argue e a r these ban are formed slowly by flows in the turbulent boundary layer generated by weakly nonlinear, dispersive waves. The model is based on the interaction between surficial or internal, weakly nonlinear shallow water waves, having weak spanwise sparial dependence, and the bottom topography. While such underwater srmclures are not the result of a single formative agent. it is argued that the mechanism proposed in this study does contribute significantly to their generation and evolution.

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Section: Hydrodynamics Of the Boundary Layermentioning

confidence: 73%

Section: Hydrodynamics Of the Boundary Layermentioning

confidence: 73%