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On Lagrangian residual currents with applications in south San Francisco Bay, California
Ralph T. Cheng ; Vincenzo Casulli
发表期刊WATER RESOURCES RESEARCH
1982
卷号18期号:6页码:1652-1662
英文摘要The Lagrangian residual circulation has often been introduced as the sum of the Eulerian residual circulation and the Stokes' drift. Unfortunately, this definition of the Lagrangian residual circulation is conceptually incorrect because both the Eulerian residual circulation and the Stokes' drift are Eulerian variables. In this paper a classification of various residual variables are reviewed and properly defined. The Lagrangian residual circulation is then studied by means of a two-stage formulation of a computer model. The tidal circulation is first computed in a conventional Eulerian way, and then the Lagrangian residual circulation is determined by a method patterned after the method of markers and cells. To demonstrate properties of the Lagrangian residual circulation, application of this approach in South San Francisco Bay, California, is considered. With the aid of the model results, properties of the Eulerian and Lagrangian residual circulation are examined. It can be concluded that estimation of the Lagrangian residual circulation from Eulerian data may lead to unacceptable error, particularly in a tidal estuary where the tidal excursion is of the same order of magnitude as the length scale of the basin. A direction calculation of the Lagrangian residual circulation must be made and has been shown to be feasible.
语种英语
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/4593
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Ralph T. Cheng,Vincenzo Casulli. On Lagrangian residual currents with applications in south San Francisco Bay, California[J]. WATER RESOURCES RESEARCH,1982,18(6):1652-1662.
APA Ralph T. Cheng,&Vincenzo Casulli.(1982).On Lagrangian residual currents with applications in south San Francisco Bay, California.WATER RESOURCES RESEARCH,18(6),1652-1662.
MLA Ralph T. Cheng,et al."On Lagrangian residual currents with applications in south San Francisco Bay, California".WATER RESOURCES RESEARCH 18.6(1982):1652-1662.
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