Research Article
Feb 1982
Numerical Modeling Study of Lake Pontchartrain
Publication: Journal of the Waterway, Port, Coastal and Ocean Division
Volume 108, Issue 1
Abstract
A Hansen-type hydronamical-numerical model is shown to adequately simulate actual wind circulation, water levels, and particulate matter dispersion in Lake Pontchartrain. The model is an explicit numerical difference scheme based on leap-frog integration through time of the two-dimensional Eulerian form of the hydrodynamical equations to obtain a dynamical boundary-valve solution of tidal order. The differential equations are derived by integration of both x and y velocity components through a layer of assumed uniform density to achieve vertically averaged mean components. Terms to account for rotation of the earth, wind and tidal forcing, and dissipative frictional effects are included. The diffusion and advection method used is a Monte Carlo stochastic process in which the model provides the advectional flow. Two simple applications demonstrate the ability of this model to accurately represent the movement of a lake surface under the influence of tides and wind. A third application demonstrates the ability to model the injection and plume dispersion of particulate matter in lakes.
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Published In
Journal of the Waterway, Port, Coastal and Ocean Division
Volume 108 • Issue 1 • February 1982
Pages: 49 - 64
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Feb 1982
Published online: Feb 12, 2021
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Authors
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Glenn D. Hamilton
Chief, Data Systems, NOAA Data Buoy Office, National Space & Technology Laboratory Station, Miss. 39529
Cecil W. Soileau, M.ASCE
Chief, Hydr. and Hydrologic Branch, Engrg. Div., U.S. Army Corps of Engrs., New Orleans Dist., New Orleans, La. 70160
Arthur D. Stroud
Numerical Analyst, Compass Systems, Inc., San Diego, Calif. 92109
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.