Research Article
Jan 1969
Salinity Intrusion Effects in Estuary Shoaling
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 95, Issue 1
Abstract
In the salinity intrusion region of an estuary the internal velocity distribution in the longitudinal direction is modified by the density effects. If the velocities are averaged over a tidal cycle the result is an increase in the surface velocities in the downstream (ebb) direction and a reversal of the near-bottom velocities so that the net velocity is in the upstream (flood) direction. The region of heavy shoaling in an estuary is shown to be related to the location of the null point at which the near-bottom velocity reverses from a net landward to a net seaward direction. The location of the null point is shown to be related to the longitudinal salinity distribution through a correlation based on the local densimetric Froude number. A method is developed for predicting the longitudinal change in the region of heavy shoaling due to changes in channel depth or fresh water discharge. The method is developed from laboratory data obtained at M.I.T. and W.E.S. (Vicksburg) and is applied to the Savannah and Delaware estuaries.
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Published In
Journal of the Hydraulics Division
Volume 95 • Issue 1 • January 1969
Pages: 9 - 28
Copyright
© 1969 American Society of Civil Engineers.
History
Published in print: Jan 1969
Published online: Feb 3, 2021
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Authors
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Donald R. F. Harleman, M.ASCE
Prof. of Civ. Engrg., Mass. Inst. of Tech., Cambridge, Mass
Arthur T. Ippen, F.ASCE
Ford Prof. of Engrg., Mass. Inst. of Tech., Cambridge, Mass
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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.