Two-dimensional analytical solution for tide-induced watertable fluctuations in a sandy rhythmic coastline

Modelling of tide-induced watertable fluctuations in coastal unconfined aquifers has, for many years, been based on the assumptions of one-dimensional shallow flow and a vertical beach face. This approach is based on the Boussinesq equation, neglecting variations in the coastline and beach slope. Here, a closed-form analytical solution for a two-dimensional unconfined coastal aquifer, taking account the sloping and variable coastline, is derived. In the appropriate limits, this new solution reduces to the vertical beach, one-dimensional solution. The effects of different beach slopes and the coastline variability for a typical sandy beach environment are investigated. The results indicate that both the coastline shape and beachface slope are important parameters affecting the solution for tide-driven coastal groundwater fluctuations.


Published in:
Journal of Coastal Research, SI39, 3, 1665-1670
Year:
2006
Publisher:
Coastal Education and Research Foundation
ISSN:
0749-0208
Keywords:
Note:
http://siaiacad09.univali.br/ics2004/papers.html
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2011-02-08, last modified 2018-03-17

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