Determination of Estuary Parameters on Basis of Lagrangian Analysis
Publication: Journal of Hydraulic Engineering
Volume 119, Issue 5
Abstract
A comprehensive hydrometric survey of an estuary can be both expensive and time consuming. Considerable economies in both cost and time can therefore be realized if some of the more difficult‐to‐determine parameters can be related to more readily obtainable information. In particular, the tidal prism, the tidal excursion, and the estuary mean depth are found amenable to such treatment. Such relationships can be derived from an analytical solution of St. Venant's equations in a Lagrangian reference frame, provided that the estuary shape can be described by an exponentially varying cross section—in alluvial estuaries this is generally the case; and the velocity variation within the Lagrangian reference frame can be described by a simple harmonic—this appears to be no problem if the tidal range to depth ratio is not too large. The equations obtained have been calibrated on results obtained with a one‐dimensional hydraulic model and verified with prototype data obtained from 15 estuaries in different parts of the world. The relationships obtained are sufficiently accurate for use in studies at prefeasibility level.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Curcio, R. L. S. (1991). “Analysis of a one‐dimensional salt intrusion model on spreadsheet,” MS thesis, International Institute for Hydraulic and Environmental Engineering, Delft, the Netherlands.
2.
Helder, W., and Ruardij. (1982). “A one‐dimensional mixing and flushing model of the Ems‐Dollard estuary: Calculation of time scales at different river discharges.” Netherlands J. Sea Res., 15(3/4), 293–312.
3.
Ippen, A. T. (1966). Estuary and coastline hydrodynamics. McGraw‐Hill, New York, N.Y.
4.
McDowell, D. M., and O'Connor. (1977). Hydraulic behaviour of estuaries. The Macmillan Press, London, U.K.
5.
Monitoring and evaluation of Banyuasin, Calik, Lalang rivers and its' tributaries, South Sumatra. (1990). Inst. of Hydr. Engrg., Bandung, Indonesia.
6.
Nota WWKZ‐80. V023. (1980). Rijkswaterstaat, Directie waterhuishouding en waterbeweging, district kust en zee, Vlissingen, the Netherlands.
7.
Salinity intrusion in the Chao Phya and Mae Klong rivers. (1978). Asian Inst. of Tech., Bangkok, Thailand.
8.
Savenije, H. H. G. (1986). “A one‐dimensional model for salinity intrusion in alluvial estuaries.” J. Hydr., Amsterdam, the Netherlands, 85, 87–109.
9.
Savenije, H. H. G. (1988). “Influence of rain and evaporation on salt intrusion in estuaries.” J. Hydr. Engrg., ASCE, 114(12), 1509–1524.
10.
Savenije, H. H. G. (1989). “Salt intrusion model for high‐water slack, low‐water slack and mean tide on spreadsheet.” J. Hydr., Amsterdam, the Netherlands, 107, 9–18.
11.
Savenije, H. H. G. (1992). “Lagrangian solution of St. Venant's equations for an alluvial estuary.” J. Hydr. Engrg., ASCE, 118(8), 1153–1163.
12.
Wardoyo, W. (1991). “Data requirements for an adequate salt intrusion model in the Solo estuary,” MS thesis, Institute for Hydraulic and Environmental Engineering, Delft, the Netherlands.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 119 • Issue 5 • May 1993
Pages: 628 - 642
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Feb 4, 1992
Published online: May 1, 1993
Published in print: May 1993
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.