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Large-scale experiments on wave propagation over Posidonia oceanica

Stratigaki, Vasiliki and Manca, Eleonora and Prinos, Panayotis and Losada Rodríguez, Iñigo J. and López Lara, Javíer and Sclavo, Mauro and Amos, Carl L. and Cáceres, Iván and Sánchez-Arcilla, Agustín (2011) Large-scale experiments on wave propagation over Posidonia oceanica. Journal of Hydraulic Research, Vol. 49 (Suppl. 1), p. 31-43. eISSN 1814-2079. Article.

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DOI: 10.1080/00221686.2011.583388

Abstract

Posidonia oceanica, the most abundant seagrass species in the Mediterranean, supports a highly bio-diverse habitat and is crucial in protecting against coastal erosion. In this work, experiments in a large-scale facility have been performed, for the measurement of wave attenuation, transmission and energy dissipation over artificial Posidonia oceanica. The effects of submergence ratio corresponding to the seagrass height divided by water depth, and seagrass density as the number of stems per square metre on the above characteristics are investigated. Measurements of wave height at different locations along the vegetation meadow indicate the wave attenuation along the Posidonia oceanica for three different submergence ratios and two seagrass densities. Results are also analysed with regard to the wave-induced flow within the meadow, and the effects of the submergence ratio and the seagrass density on the mean flow characteristics, based on data of mean velocities taken at three locations within the seagrass.

Item Type:Article
ID Code:7144
Status:Published
Refereed:Yes
Uncontrolled Keywords:Artificial seagrass, artificial vegetation, large-scale experiment, Posidonia oceanica, wave attenuation, wave–seagrass interaction
Subjects:Area 05 - Scienze biologiche > BIO/07 Ecologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze botaniche, ecologiche e geologiche
Publisher:Taylor & Francis
eISSN:1814-2079
Additional Information:Special issue: Hydralab III: large-scale experiments and composite modelling.
Deposited On:23 Feb 2012 09:40

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