{"id":8440,"date":"2024-08-01T15:12:51","date_gmt":"2024-08-01T13:12:51","guid":{"rendered":"https:\/\/www.mio.osupytheas.fr\/?page_id=8440"},"modified":"2024-09-20T14:59:13","modified_gmt":"2024-09-20T12:59:13","slug":"improving-the-representation-of-ocean-dynamics-by-understanding-multi-scale-processes-2","status":"publish","type":"page","link":"https:\/\/www.mio.osupytheas.fr\/en\/amelioration-de-la-representation-de-la-dynamique-oceanique-par-la-comprehension-des-processus-multi-echelles-2\/","title":{"rendered":"Towards a better representation of ocean dynamics through a better knowledge of multi-scale processes"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"8440\" class=\"elementor elementor-8440\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-680c00bc e-flex e-con-boxed e-con e-parent\" data-id=\"680c00bc\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6d2b89c1 e-flex e-con-boxed e-con e-child\" data-id=\"6d2b89c1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f879b29 elementor-widget__width-initial elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"3f879b29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Am\u00e9lioration de la repr\u00e9sentation de la dynamique oc\u00e9anique par la compr\u00e9hension des processus multi-\u00e9chelles<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-236871db elementor-widget__width-initial breadcrumb elementor-widget elementor-widget-shortcode\" data-id=\"236871db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                            ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23f3ea07 e-con-full e-flex e-con e-parent\" data-id=\"23f3ea07\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-48c82ee8 e-flex e-con-boxed e-con e-child\" data-id=\"48c82ee8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-29a7fc2b e-con-full e-flex e-con e-child\" data-id=\"29a7fc2b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-42c19fa elementor-widget elementor-widget-heading\" data-id=\"42c19fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Th\u00e9matique 2<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7aa7d82c elementor-widget-mobile__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"7aa7d82c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cette th\u00e9matique s\u2019attache \u00e0 la description des processus multi-\u00e9chelles et de leurs interactions, dans l\u2019objectif de mieux repr\u00e9senter la dynamique oc\u00e9anique. Une premi\u00e8re voie de recherche consiste \u00e0 \u00e9tudier l\u2019interaction des ph\u00e9nom\u00e8nes ondulatoires avec la dynamique oc\u00e9anique \u00e0 diff\u00e9rentes \u00e9chelles. Par exemple, l\u2019influence de la transformation des ondes de gravit\u00e9 sur la dynamique en zone littorale et c\u00f4ti\u00e8re et sur celle des aquif\u00e8res de plage fait l&#8217;objet d&#8217;\u00e9tudes sp\u00e9cifiques au sein de l&#8217;\u00e9quipe.<\/p>\n\n<p>Plus g\u00e9n\u00e9ralement, l\u2019interaction entre la circulation marine et les ondes, reste encore tr\u00e8s mal repr\u00e9sent\u00e9e dans les mod\u00e8les. Ainsi, l\u2019\u00e9tude de la circulation induite par ces ondes, et de l\u2019influence r\u00e9ciproque de cette circulation sur la propagation (couplage), constitue un exemple d\u2019interactions multi-\u00e9chelles, qu\u2019il est n\u00e9cessaire de prendre en compte pour mod\u00e9liser la dynamique oc\u00e9anique en zone c\u00f4ti\u00e8re.<\/p>\n\n<p>Au-del\u00e0 de l\u2019objectif en soi que constitue la compr\u00e9hension et la description de la dynamique oc\u00e9anique aux diff\u00e9rentes \u00e9chelles, la compr\u00e9hension et la bonne repr\u00e9sentation dans les mod\u00e8les de cette dynamique constitue un pr\u00e9alable \u00e0 l\u2019\u00e9tude des \u00e9cosyst\u00e8mes marins et \u00e0 la r\u00e9ponse \u00e0 des probl\u00e9matiques environnementales (cf th\u00e9matique 3). A contrario, la r\u00e9troaction de la biog\u00e9ochimie sur la dynamique oc\u00e9anique (via le bilan de chaleur), est toujours mal quantifi\u00e9e et peu repr\u00e9sent\u00e9e dans les mod\u00e8les alors que cet impact semble loin d\u2019\u00eatre n\u00e9gligeable.<\/p>\n\n<p>Dans ce contexte, une autre voie de recherche de l\u2019\u00e9quipe dans cette th\u00e9matique a pour but d\u2019\u00e9tudier le contr\u00f4le qu\u2019exerce cette dynamique (et notamment celle de m\u00e9so et sub-m\u00e9so \u00e9chelle) sur les flux d\u2019\u00e9nergie et de mati\u00e8re, sur la variabilit\u00e9 des courants de pente et les \u00e9changes c\u00f4te-large, mais aussi sur la distribution de traceurs hydrologiques et biog\u00e9ochimiques, ainsi que potentiellement la r\u00e9troaction qu\u2019exercent ces derniers sur le bilan de chaleur et la dynamique oc\u00e9anique.<\/p>\n\n<p>Pour atteindre ces objectifs, une d\u00e9marche combinant mesures in situ \u00e0 l&#8217;aide de protocoles adapt\u00e9s (suivis lagrangiens,&#8230;) et mod\u00e9lisation num\u00e9rique est mise en oeuvre. Cette d\u00e9marche est appliqu\u00e9e aussi bien \u00e0 grande \u00e9chelle (M\u00e9diterran\u00e9e, Pacifique), \u00e0 \u00e9chelle r\u00e9gionale (M\u00e9diterran\u00e9e Nord-occidentale) qu\u2019\u00e0 des \u00e9cosyst\u00e8mes (i.e. biotope et bioc\u00e9nose) particuliers tels que les lagon-r\u00e9cifs, en focalisant notamment sur l\u2019influence des flux terrig\u00e8nes, cross-r\u00e9cifaux et c\u00f4te-large, les panaches d\u2019\u00eeles, ou les zones d&#8217;upwelling.<\/section><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-34081859 e-flex e-con-boxed e-con e-parent\" data-id=\"34081859\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ef761fa elementor-widget elementor-widget-heading\" data-id=\"5ef761fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">Partager sur :<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4440f005 elementor-share-buttons--view-icon elementor-share-buttons--shape-circle elementor-widget__width-auto elementor-share-buttons--skin-gradient elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"4440f005\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;share_url&quot;:{&quot;url&quot;:&quot;&quot;,&quot;is_external&quot;:&quot;&quot;,&quot;nofollow&quot;:&quot;&quot;,&quot;custom_attributes&quot;:&quot;&quot;}}\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t\t<div 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Une premi\u00e8re voie de recherche consiste \u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4489,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8440","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/pages\/8440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/comments?post=8440"}],"version-history":[{"count":31,"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/pages\/8440\/revisions"}],"predecessor-version":[{"id":13787,"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/pages\/8440\/revisions\/13787"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/media\/4489"}],"wp:attachment":[{"href":"https:\/\/www.mio.osupytheas.fr\/en\/wp-json\/wp\/v2\/media?parent=8440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}