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Attenuation of wave-induced groundwater pressure in shallow water. Part 1

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Author(s): Stanis³aw R. Massel | Anna Przyborska | Micha³ Przyborski

Journal: Oceanologia
ISSN 0078-3234

Volume: 46;
Issue: 3;
Start page: 383;
Date: 2004;
Original page

Keywords: Surface wave | Pore water pressure | Sandy beach | Filtration

ABSTRACT
A coastal aquifer has a dynamic seaward boundary at the beach face where physical and ecological processes are influenced by oceanic water level fluctuations. Many basic groundwater concepts and the role of the impact of groundwater seepage on beach ecosystems are still poorly understood. Studies are needed to improve our understanding of the relationships between surface and subsurface flow processes on beaches. This is particularly helpful in clarifying the interaction of the physical processes, biodiversity and productivity of sandy beaches, sediment transport and coastal structure stability and modern beach nourishment techniques. As the estimation of infiltration into beach sand is very difficult to carry out under real sea conditions, a control led large-scale laboratory experiment was carried out in the Large Wave Channel in Hannover (Germany) as part of a project supported by the European Community (contract HPRI-CT-2001-00157). First part of the paper describes the technology applied in the experiment and reports some preliminary results.
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