Morphodynamic at regional scale of a microtidal shoreface with nearshore bars: example of the Languedoc-Roussillon coastline using LiDAR technology
type: Dataset
description: The sandy coasts are very dynamic environments at all time and space scales. Today, they constitute an area of strategic importance for humanity because of its strong economic and demographic weight. This thesis aims to study the morphodynamics of the shoreface of the Languedoc-Roussillon region (Mediterranean Sea) at a multi-decadal to secular scale. This work is possible by the use of topo-bathymetric airborne LiDAR able to map large areas. The results of this thesis show that there exist a wide variety of beach and bars states. The organization of these states is mainly controlled by sedimentary characteristics, wave conditions and geological context. The sediment budget of the shoreface was studied at secular scale and indicates an overall deficit of more than 26 million m3 of sediment. Sand bar dynamic was analyzed at a multi-decadal scale and shows the presence and involvement of slightly oblique nearshore bars in the process of Net Offshore Migration. Finally, this thesis has also highlighted the strong influence of human activities on the general shoreface behaviour at the regional scale.
identifier: NNT: 2013PERP1156
issued: 2026-05-05T12:11:06.522612
language: fr
modified: 2026-05-05T12:11:06.522617
contact point: Organization
  fn: CCSD
keyword: antropogenic-disturbance
keyword: barres-davant-cote
keyword: derive-littoral
keyword: hydrodynamic
keyword: hydrodynamique
keyword: impact-anthropique
keyword: infoeu-reposemanticsdoctoralthesis
keyword: lidar
keyword: longshore-drift
keyword: migration-vers-le-large
keyword: net-offshore-migration
keyword: sandbars
keyword: sduoceansciences-of-the-universe-physicsocean-atmosphere
keyword: sdustugmsciences-of-the-universe-physicsearth-sciencesgeomorphology
keyword: sedimentary-transport
keyword: theses
keyword: transport-sedimentaire
landing page: https://theses.hal.science/tel-00987008

Morphodynamic at regional scale of a microtidal shoreface with nearshore bars: example of the Languedoc-Roussillon coastline using LiDAR technology
type: Distribution
format: HTML
issued: 2026-05-05T12:11:06.524713
modified: 2026-05-05T12:11:06.501323
access URL: https://theses.hal.science/tel-00987008

test_moissonnage_selune
type: Agent