{"id":4829,"date":"2020-04-12T00:52:25","date_gmt":"2020-04-11T22:52:25","guid":{"rendered":"http:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/?page_id=4829"},"modified":"2020-12-05T00:53:22","modified_gmt":"2020-12-04T23:53:22","slug":"alexandre-dubois-these","status":"publish","type":"page","link":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/alexandre-dubois-these\/","title":{"rendered":"Alexandre Dubois (PhD)"},"content":{"rendered":"
\n
\n\t

\"\"<\/span><\/p>\n

Alexandre Dubois<\/span><\/h3>\n

 <\/p>\n

Thesis defended in 2012
\nin Lorient
\nPhysical Geography<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>

\n
\n\t

Morphodynamic behaviour of pocket beaches in a semi-sheltered meso-tidal environment : example of the Southern beaches of the Rhuys peninsula, Southern Brittany<\/h3>\n<\/div>\n<\/div><\/div><\/div><\/div>
\n
\n\t

Abstract<\/span><\/h4>\n

Pocket beaches take place along the rocky coastlines. On the Rhuys peninsula, they form protecting sandy barriers at the back low wetlands partially connected to the marine environment. These beaches undergo a strong meso-tidal range, when they are located behind a structural barrier, the ocean swell is strongly attenuated. The local wind generates an important sea of wind whose short frequency waves thus created favour the greatest transverse morphological change and the greatest longitudinal sediment transport. The various hydrodynamic and topographic experiments carried out in the field have highlighted longitudinal sediment transport favoured by a moderate and persistent local wind. With greater agitation, the sedimentary transfers are carried out transversally by more powerful processes of surfing and bank jet. Exchanges take place around a point of equilibrium of lesser activity. Wind and swell have a heterogeneous impact in space. Moreover, the variations in volume clearly indicate that each beach system is independent. No exchange of sediment between beaches is demonstrated, whereas a connection is allowed with the near subtidal domain, between rocky flats. Finally, the degree of impact of a storm depends on its trajectory and the water level. Moreover, the eroded volume is quickly recovered by the system. The sediment budget is preserved. However, with the rise in sea level, dune belts can break with an expected longitudinal redistribution.<\/span><\/p>\n<\/div>\n<\/div><\/div><\/div>

\n
\n\t

Supervisors<\/strong>
\n<\/span>David Menier<\/span><\/p>\n

Keywords
\n<\/span><\/strong>Windwaves
\nTransversal sand dynamics
\nMeso-tidal range
\nBeaches
\nErosion
\nLittorals
\nModifications
\nFrance
\nRhuys peninsula
\n<\/span><\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Alexandre Dubois   Th\u00e8se soutenue en 2012 \u00e0 Lorient Domaine de la\u00a0G\u00e9ographie physique Comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud<\/p>","protected":false},"author":9,"featured_media":5114,"parent":3951,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4829","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nAlexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS<\/title>\n<meta name=\"description\" content=\"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/alexandre-dubois-these\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS\" \/>\n<meta property=\"og:description\" content=\"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/alexandre-dubois-these\/\" \/>\n<meta property=\"og:site_name\" content=\"LGO - P\u00f4le UBS\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/search\/top\/?q=algobox%20%3aun%20outil%20%c3%a9cologique%20de%20r%c3%a9g%c3%a9n%c3%a9ration%20des%20dunes\" \/>\n<meta property=\"article:modified_time\" content=\"2020-12-04T23:53:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2020\/04\/P1130175.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1920\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/\",\"url\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/\",\"name\":\"Alexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/P1130175.jpg\",\"datePublished\":\"2020-04-11T22:52:25+00:00\",\"dateModified\":\"2020-12-04T23:53:22+00:00\",\"description\":\"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/P1130175.jpg\",\"contentUrl\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/P1130175.jpg\",\"width\":2560,\"height\":1920},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/alexandre-dubois-these\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Th\u00e8ses et Post-docs\",\"item\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/theses-post-docs\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Alexandre Dubois (Th\u00e8se)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#website\",\"url\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/\",\"name\":\"LGO - P\u00f4le UBS\",\"description\":\"Une expertise durable des milieux marins et c\u00f4tiers\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#organization\",\"name\":\"OCLM\",\"url\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/cropped-cropped-goo-hd-geo-ocean-tutelles-noir.png\",\"contentUrl\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/wp-content\\\/uploads\\\/2021\\\/12\\\/cropped-cropped-goo-hd-geo-ocean-tutelles-noir.png\",\"width\":2887,\"height\":1485,\"caption\":\"OCLM\"},\"image\":{\"@id\":\"https:\\\/\\\/www.laboratoire-geosciences-ocean-ubs.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/search\\\/top\\\/?q=algobox :un outil \u00e9cologique de r\u00e9g\u00e9n\u00e9ration des dunes\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Alexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS","description":"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/alexandre-dubois-these\/","og_locale":"en_GB","og_type":"article","og_title":"Alexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS","og_description":"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud","og_url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/alexandre-dubois-these\/","og_site_name":"LGO - P\u00f4le UBS","article_publisher":"https:\/\/www.facebook.com\/search\/top\/?q=algobox%20%3aun%20outil%20%c3%a9cologique%20de%20r%c3%a9g%c3%a9n%c3%a9ration%20des%20dunes","article_modified_time":"2020-12-04T23:53:22+00:00","og_image":[{"width":2560,"height":1920,"url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2020\/04\/P1130175.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/","url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/","name":"Alexandre Dubois (Th\u00e8se) - LGO - P\u00f4le UBS","isPartOf":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/#primaryimage"},"image":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/#primaryimage"},"thumbnailUrl":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2020\/04\/P1130175.jpg","datePublished":"2020-04-11T22:52:25+00:00","dateModified":"2020-12-04T23:53:22+00:00","description":"Retrouvez ici la th\u00e8se d'Alexandre Dubois sur le comportement morphodynamique des plages de poche en milieu m\u00e9sotidal semi-abrit\u00e9 : exemple des plages m\u00e9ridionales de la presqu\u2019\u00eele de Rhuys, Bretagne sud","breadcrumb":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/#primaryimage","url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2020\/04\/P1130175.jpg","contentUrl":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2020\/04\/P1130175.jpg","width":2560,"height":1920},{"@type":"BreadcrumbList","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/alexandre-dubois-these\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/"},{"@type":"ListItem","position":2,"name":"Th\u00e8ses et Post-docs","item":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/theses-post-docs\/"},{"@type":"ListItem","position":3,"name":"Alexandre Dubois (Th\u00e8se)"}]},{"@type":"WebSite","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#website","url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/","name":"LGO - P\u00f4le UBS","description":"Une expertise durable des milieux marins et c\u00f4tiers","publisher":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#organization","name":"OCLM","url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#\/schema\/logo\/image\/","url":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2021\/12\/cropped-cropped-goo-hd-geo-ocean-tutelles-noir.png","contentUrl":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/wp-content\/uploads\/2021\/12\/cropped-cropped-goo-hd-geo-ocean-tutelles-noir.png","width":2887,"height":1485,"caption":"OCLM"},"image":{"@id":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/search\/top\/?q=algobox :un outil \u00e9cologique de r\u00e9g\u00e9n\u00e9ration des dunes"]}]}},"_links":{"self":[{"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/pages\/4829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/comments?post=4829"}],"version-history":[{"count":0,"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/pages\/4829\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/pages\/3951"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/media\/5114"}],"wp:attachment":[{"href":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/wp-json\/wp\/v2\/media?parent=4829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}