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A Topo-Bathymetric Survey of the Morphological Evolution of a Microtidal Barred Beach. Case Study: The Coastal Prism of Korba (Mediterranean Coast; Northeast of Tunisia)

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Mapping and Spatial Analysis of Socio-economic and Environmental Indicators for Sustainable Development

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Abstract

For mapping the three-dimensional shape of the submarine bars, studying their dynamics and assessing the spatio-temporal evolution of sedimentary balances, the coastal prism of Korba (emerged and submerged beach) has benefitted from topo-bathymetric monitoring. This monitoring was carried out on an annual basis between July 2006 and July 2009. Numerical Terrain Models (N.T.M.) and transverse profiles were then analyzed. The main results show, firstly, that the shoreface of Korba is characterized by a homogeneous evolution across all profiles of its two-bar system. Moreover, the extent of changes in the sand volume of the beach suggests that the evolution takes place without significant sedimentary loss and that the beach is in a dynamic equilibrium. Accretion of the bars and migration towards the shore are found in periods of small waves (between July 2006 and July 2007). However, following a period of minor agitations, a filling of the outer trough is observed. It is proceeded by the migration of the outer bar towards the coast (between July 2007 and July 2009). These results confirm the traditional model of self-organization of a barred beach. These data and results, then, allow us to establish conceptual models and simula- tions of the evolution of the microtidal, barred beach of Korba.

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Author information

Authors and Affiliations

  1. Laboratoire des Ressources Minérales et Environnement (LRME), Département de Géologie, Université Tunis El Manar/Faculté des Sciences de Tunis, 2092 El Manar 2, Tunis, Tunisie

    Zouhour Yahyaoui & Saâdi Abdeljaouad

  2. Aix-Marseille Université, Centre Européen de Recherche et d’Enseignement des Géosciences et de l’Environnement, UMR CNRS 6635, Europole de l’Arbois, B.P. 80, 13545, Aix-en-Provence Cedex 04, France

    François Sabatier

  3. LR14ES03 Geotechnical Engineering and Georisk Laboratory, University of Tunis El Manar, National School of Engineering of Tunis, le Belvédère 1002, B.P. 37, Tunis, Tunisia

    Noamen Rebai

Authors
  1. Zouhour Yahyaoui
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  2. François Sabatier
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  3. Noamen Rebai
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  4. Saâdi Abdeljaouad
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Correspondence to Zouhour Yahyaoui .

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Editors and Affiliations

  1. National Engineering School of Tunis, Tunis, Tunisia

    Noamen Rebai

  2. Geopac Research Center, Scientific Institute, Mohammed V University of Rabat, Rabat, Morocco

    Mohamed Mastere

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Yahyaoui, Z., Sabatier, F., Rebai, N., Abdeljaouad, S. (2020). A Topo-Bathymetric Survey of the Morphological Evolution of a Microtidal Barred Beach. Case Study: The Coastal Prism of Korba (Mediterranean Coast; Northeast of Tunisia). In: Rebai, N., Mastere, M. (eds) Mapping and Spatial Analysis of Socio-economic and Environmental Indicators for Sustainable Development. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-21166-0_10

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