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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Submarine springs and coastal karst aquifers: A review
Journal of Hydrology, Volume 339, No. 1-2, Year 2007
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Description
This article reports on current knowledge of coastal karst aquifers, in which conduit flow is dominant, and its aim is to characterise the functioning of these systems which are closely linked to the sea. First, earlier and recent studies of these aquifers are discussed. On the basis of their findings, it can be shown that two essential mechanisms are involved in the functioning of these systems, i.e., aquifer discharge through submarine springs and saline intrusion through conduits open to the sea. Then, the conditions that give rise to these aquifers are described and particular emphasis is placed on the influence of deep karstification when the sea level falls. The base-level variations are attributed to the glaciations or, in the specific case of the Mediterranean, to the salinity crisis in the Messinian period. It is this inherited structure, sometimes containing very deep conduits below sea level, that today conditions the aquifer flow. The flow in the conduits open to the sea depends on the hydraulic head gradient between the aquifer and the sea and is therefore a function of the water density and head losses in the aquifer. This survey of coastal karst aquifers has revealed some common characteristics that show the development and/or functional capacity of their karstic drainage networks. A classification of such systems into three categories is proposed with the aim of assisting in the decision-making concerning potential exploitation of water resources in coastal regions. © 2007 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Fleury, P.
France, Montpellier
Laboratoire Hydrosciences Montpellier
Bakalowicz, Michel J.
Lebanon, Beirut
Université Saint-joseph de Beyrouth
De Marsily, Ghislain
France, Paris
Milieux Environnementaux, Transferts et Interactions Dans Les Hydrosystèmes et Les Sols
Statistics
Citations: 254
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1016/j.jhydrol.2007.03.009
ISSN:
00221694
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative