Two-Dimensional Approximation for Tidal Dynamics in Coastal Aquifers: Capillarity Correction
Publication: Journal of Engineering Mechanics
Volume 131, Issue 5
Abstract
Most previous investigations on tide-induced watertable fluctuations in coastal aquifers have been based on one-dimensional models that describe the processes in the cross-shore direction alone, assuming negligible along-shore variability. A recent study proposed a two-dimensional approximation for tide-induced watertable fluctuations that took into account coastline variations. Here, we further develop this approximation in two ways, by extending the approximation to second order and by taking into account capillary effects. Our results demonstrate that both effects can markedly influence watertable fluctuations. In particular, with the first-order approximation, the local damping rate of the tidal signal could be subject to sizable errors.
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Acknowledgments
The writers are grateful for financial support from an ARC Linkage-International Award (2002–2003) and a Griffith University Research Development Grant (2002).
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 131 • Issue 5 • May 2005
Pages: 534 - 541
Copyright
© 2005 ASCE.
History
Received: Dec 23, 2002
Accepted: Jun 17, 2003
Published online: May 1, 2005
Published in print: May 2005
Notes
Note. Associate Editor: Alexander H.-D. Cheng
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