{"id":94,"date":"2015-07-22T17:39:21","date_gmt":"2015-07-22T16:39:21","guid":{"rendered":"http:\/\/marine.geophysicsgpr.com\/?page_id=94"},"modified":"2017-03-09T17:17:01","modified_gmt":"2017-03-09T16:17:01","slug":"bathymetrie-sonar-a-balayage-lateral","status":"publish","type":"page","link":"https:\/\/marine.geophysicsgpr.com\/fr\/techniques-geophysiques-marine\/bathymetrie-sonar-a-balayage-lateral","title":{"rendered":"Bathym\u00e9trie et Sonar \u00e0 balayage lat\u00e9ral"},"content":{"rendered":"<div id=\"pl-94\"  class=\"panel-layout\" ><div id=\"pg-94-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-94-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-94-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"texte-home-right article panel-widget-style panel-widget-style-for-94-0-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p>Le syst\u00e8me de bathym\u00e9trie multifaisceaux de G\u00e9ophysique GPR s\u2019appuie sur les derni\u00e8res perc\u00e9es technologiques en mati\u00e8re de cartographie du fond marin. Il allie un bathym\u00e8tre \u00e0 multifaisceaux larges et un sonar \u00e0 balayage lat\u00e9ral \u00e0 double fr\u00e9quences. Les donn\u00e9es de positionnement, enregistr\u00e9es par des GPS RTK ultra-pr\u00e9cis et par unit\u00e9 de r\u00e9f\u00e9rence de mouvement (MRU), de la bathym\u00e9trie et sonar \u00e0 balayage lat\u00e9ral sont enregistr\u00e9es simultan\u00e9ment, ce qui permet de localiser les cibles de mani\u00e8re pr\u00e9cise et d\u2019\u00e9laborer des cartes d\u00e9taill\u00e9es et des mod\u00e8les 3D.<\/p>\n<p>Le syst\u00e8me offre une excellente couverture du fond (jusqu\u2019\u00e0 12 fois la hauteur de l\u2019eau) avec couverture nadirale totale (sans jeu).<\/p>\n<p>L\u00e9ger, il se transporte ais\u00e9ment et s\u2019installe sur des embarcations de diff\u00e9rentes dimensions.<\/p>\n<h2 class=\"h2resize\">Applications de bathym\u00e9trie et sonar \u00e0 balayage :<\/h2>\n<ul>\n<li>Lev\u00e9s hydrographiques;<\/li>\n<li>Enqu\u00eates sur des infrastructures publiques (barrage, pont, canal, jet\u00e9e, port et plateforme);<\/li>\n<li>Cartographie de l\u2019habitat benthique;<\/li>\n<li>Analyse nautique technique;<\/li>\n<li>Activit\u00e9s li\u00e9es \u00e0 la gestion des r\u00e9sidus;<\/li>\n<li>Fouilles\/\u00e9tudes arch\u00e9ologiques;<\/li>\n<li>Lev\u00e9s routiers.<\/li>\n<\/ul>\n<p>G\u00e9ophysique GPR utilise des \u00e9quipements de type sonar de la compagnie Klein Inc., connue comme le leader mondial dans la fabrication des syst\u00e8mes de sonar \u00e0 balayage lat\u00e9ral. Les donn\u00e9es sont enregistr\u00e9es de fa\u00e7on num\u00e9rique, il est alors facile de cr\u00e9er des mosa\u00efques de sonar qui couvrent une grande surface sous-marine.<\/p>\n<p>Les lev\u00e9s de sonar \u00e0 balayage lat\u00e9ral permettent d'obtenir des imageries acoustiques\u00a0du fond marin ou de la partie immerg\u00e9e d'ouvrages tels\u00a0des digues et des barrages, \u00e0 partir d'ondes acoustiques. Pour mesurer la topographie des fonds submerg\u00e9s, la bathym\u00e9trie\u00a0utilise l'\u00e9mission\u00a0d'ondes acoustiques (de 30 \u00e0 200kHz)\u00a0pour d\u00e9terminer\u00a0la hauteur de la colonne d'eau. Un syst\u00e8me de bathym\u00e9trie complet comprend une embarcation, un bathym\u00e8tre (analogue ou num\u00e9rique) et un syst\u00e8me de positionnement (DGPS ou RTK).<\/p>\n<p>\u00a0<\/p>\n<p>Pour plus d'informations, veuillez contacter notre <span style=\"color: #013ca6\"><a style=\"color: #013ca6\" href=\"mailto:info@geophysicsgpr.com\">\u00c9quipe de lev\u00e9 marin<\/a><\/span>.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div id=\"pgc-94-0-1\"  class=\"panel-grid-cell\" ><div id=\"panel-94-0-1-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"1\" ><div class=\"panel-widget-style panel-widget-style-for-94-0-1-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-94\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_Swath.jpg\" width=\"225\" height=\"346\" srcset=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_Swath.jpg 225w, https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_Swath-195x300.jpg 195w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" title=\"Marine_techniques_swath\" alt=\"Marine_techniques_swath\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-94-1\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-94-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-94-1-0-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"2\" ><div class=\"panel-widget-style panel-widget-style-for-94-1-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-94\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_technqiues_swath.jpg\" width=\"640\" height=\"480\" srcset=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_technqiues_swath.jpg 640w, https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_technqiues_swath-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" title=\"Marine_techniques_swath\" alt=\"bathym\u00e9trie et sonar \u00e0 balayage\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><div id=\"pgc-94-1-1\"  class=\"panel-grid-cell\" ><div id=\"panel-94-1-1-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"3\" ><div class=\"panel-widget-style panel-widget-style-for-94-1-1-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-94\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_swath_1.jpg\" width=\"640\" height=\"417\" srcset=\"https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_swath_1.jpg 640w, https:\/\/marine.geophysicsgpr.com\/wp-content\/uploads\/sites\/5\/2015\/07\/Marine_techniques_swath_1-300x195.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" title=\"Bathym\u00e9trie &amp; Sonar \u00e0 balayage lat\u00e9ral\" alt=\"bathym\u00e9trie et sonar \u00e0 balayage\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Le syst\u00e8me de bathym\u00e9trie multifaisceaux de G\u00e9ophysique GPR s\u2019appuie sur les derni\u00e8res perc\u00e9es technologiques en mati\u00e8re de cartographie du fond marin. Il allie un bathym\u00e8tre \u00e0 multifaisceaux larges et un sonar \u00e0 balayage lat\u00e9ral \u00e0 double fr\u00e9quences. Les donn\u00e9es de positionnement, enregistr\u00e9es par des GPS RTK ultra-pr\u00e9cis et par unit\u00e9 de r\u00e9f\u00e9rence de mouvement (MRU),&#8230;  <a href=\"https:\/\/marine.geophysicsgpr.com\/fr\/techniques-geophysiques-marine\/bathymetrie-sonar-a-balayage-lateral\" class=\"more-link\" title=\"Read Bathym\u00e9trie et Sonar \u00e0 balayage lat\u00e9ral\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":78,"parent":16,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width.php","meta":{"content-type":"","footnotes":""},"class_list":["post-94","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/94","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/comments?post=94"}],"version-history":[{"count":12,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/94\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/94\/revisions\/1611"}],"up":[{"embeddable":true,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/16"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/media\/78"}],"wp:attachment":[{"href":"https:\/\/marine.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/media?parent=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}