{"id":1298,"date":"2025-07-02T12:32:36","date_gmt":"2025-07-02T10:32:36","guid":{"rendered":"https:\/\/www.lidar-bathymetrique.fr\/?p=1298"},"modified":"2026-05-02T18:01:03","modified_gmt":"2026-05-02T16:01:03","slug":"survey-mise-a-jour-ppri-porto-par-lidar-bathymetrique","status":"publish","type":"post","link":"https:\/\/www.lidar-bathymetrique.fr\/en\/bathymetrie-lidar\/survey-mise-a-jour-ppri-porto-par-lidar-bathymetrique\/","title":{"rendered":"Cartographie d&rsquo;un PPRI par LiDAR h\u00e9liport\u00e9 : 15 km du Porto en 4 jours pour la DDT2A"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1298\" class=\"elementor elementor-1298\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-37bcc61 e-flex e-con-boxed e-con e-parent\" data-id=\"37bcc61\" 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-d57b004 elementor-widget elementor-widget-text-editor\" data-id=\"d57b004\" 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<h2>PPRI PORTO &#8211; Mise \u00e0 jour du MNT Topo Bathym\u00e9trique du fleuve.\u00a0<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd92be9 elementor-widget elementor-widget-text-editor\" data-id=\"fd92be9\" 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<h6>Client : DDT2A &#8211; Pr\u00e9fecture de la Corse du Sud<\/h6>\t\t\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<div class=\"elementor-element elementor-element-1fffa02 e-con-full e-flex e-con e-parent\" data-id=\"1fffa02\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4617ec1 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"4617ec1\" 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><strong>Localisation<\/strong> : PORTO<br \/><strong>Data Acquisition<\/strong> : LiDAR Bathym\u00e9trique + LiDAR Infra<br \/><strong>Verification<\/strong> : GNSS + Profils en travers<br \/><strong>Deliverable<\/strong> DSM \/ DTM \/ Point Cloud<br \/><strong>Resolution<\/strong> : Haute densit\u00e9<br \/><strong>Precision<\/strong> : centimetric<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7b5190 elementor-widget elementor-widget-image\" data-id=\"e7b5190\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-1024x578.jpeg\" class=\"attachment-large size-large wp-image-1304\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-1024x578.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-300x169.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-768x434.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-18x10.jpeg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-1000x565.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-230x130.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-350x198.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2-480x271.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454651-2.jpeg 1192w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\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-c4dcf1a e-flex e-con-boxed e-con e-parent\" data-id=\"c4dcf1a\" 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-0d00264 elementor-widget elementor-widget-text-editor\" data-id=\"0d00264\" 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<h2><b>Introduction :<\/b><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-727e06c elementor-widget elementor-widget-text-editor\" data-id=\"727e06c\" 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>HELIX franchit une \u00e9tape importante de son d\u00e9veloppement avec la <strong data-start=\"355\" data-end=\"410\">remport\u00e9e de son tout premier appel d\u2019offres public<\/strong>.\u00a0<\/p><p>Une r\u00e9ussite qui marque la reconnaissance de notre expertise en <strong data-start=\"476\" data-end=\"525\">topographie, bathym\u00e9trie et acquisition LiDAR<\/strong> sur le territoire corse, au service de l\u2019int\u00e9r\u00eat g\u00e9n\u00e9ral.<\/p>\t\t\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<div class=\"elementor-element elementor-element-eef5b9a e-flex e-con-boxed e-con e-parent\" data-id=\"eef5b9a\" 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-89c28c4 elementor-widget elementor-widget-heading\" data-id=\"89c28c4\" 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\">1 - Une mission d\u2019utilit\u00e9 publique pour la s\u00e9curit\u00e9 du territoire<\/h3>\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-9be539f e-flex e-con-boxed e-con e-parent\" data-id=\"9be539f\" 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-59b0901 elementor-widget elementor-widget-text-editor\" data-id=\"59b0901\" 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 data-start=\"659\" data-end=\"882\">a mission s\u2019inscrit dans le cadre de la <strong data-start=\"700\" data-end=\"762\">r\u00e9vision du Plan de Pr\u00e9vention du Risque inondation (PPRi)<\/strong> du bassin versant du Porto, sur la commune d\u2019<strong data-start=\"808\" data-end=\"815\">Ota<\/strong>, pour le compte de la <strong data-start=\"838\" data-end=\"861\">DDT de Corse-du-Sud<\/strong> (Pr\u00e9fet de Corse).<\/p><p data-start=\"1234\" data-end=\"1609\">\u00a0<\/p><p data-start=\"886\" data-end=\"1091\">\ud83d\udd0e <strong data-start=\"889\" data-end=\"911\">Objectif principal<\/strong> : Actualiser les donn\u00e9es topographiques et bathym\u00e9triques de la vall\u00e9e du Porto afin de mieux caract\u00e9riser l\u2019al\u00e9a inondation et d\u2019alimenter les futures mod\u00e9lisations hydrauliques.<\/p>\t\t\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<div class=\"elementor-element elementor-element-bcee92b e-flex e-con-boxed e-con e-parent\" data-id=\"bcee92b\" 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-646ea66 elementor-widget elementor-widget-image\" data-id=\"646ea66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"866\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-1024x866.jpeg\" class=\"attachment-large size-large wp-image-1302\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-1024x866.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-300x254.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-768x650.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-14x12.jpeg 14w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-1000x846.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-230x195.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-350x296.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765-480x406.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454765.jpeg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a02093 elementor-widget elementor-widget-text-editor\" data-id=\"6a02093\" 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><em>Acquisition LiDAR Topo Bathym\u00e9trique par h\u00e9licopt\u00e8re<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81ec27f elementor-widget elementor-widget-heading\" data-id=\"81ec27f\" 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\">2 - Une m\u00e9thodologie innovante : le choix de la pr\u00e9cision<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9585aa0 elementor-widget elementor-widget-text-editor\" data-id=\"9585aa0\" 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 data-start=\"1159\" data-end=\"1340\">Le cahier des charges initial pr\u00e9voyait un relev\u00e9 par <strong data-start=\"1213\" data-end=\"1255\">profils en travers tous les 200 m\u00e8tres<\/strong>. HELIX a propos\u00e9 une <strong data-start=\"1277\" data-end=\"1305\">approche plus ambitieuse<\/strong> et \u00e0 plus forte valeur ajout\u00e9e :<\/p><p data-start=\"1342\" data-end=\"1489\">\u2705 R\u00e9aliser un <strong data-start=\"1356\" data-end=\"1420\">Mod\u00e8le Num\u00e9rique de Terrain (MNT) Topo-Bathym\u00e9trique complet<\/strong>, par <strong data-start=\"1426\" data-end=\"1452\">relev\u00e9 LiDAR h\u00e9liport\u00e9<\/strong> sur l\u2019ensemble du lin\u00e9aire \u00e9tudi\u00e9.<\/p><p>\u00a0<\/p><p data-start=\"1491\" data-end=\"1687\">Cette approche permet de capter la topographie et la bathym\u00e9trie de mani\u00e8re continue, dense et homog\u00e8ne \u2013 <strong data-start=\"1597\" data-end=\"1617\">un atout d\u00e9cisif<\/strong> pour la mod\u00e9lisation hydraulique et la cartographie fine des risques.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10fd2cb elementor-widget elementor-widget-image\" data-id=\"10fd2cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"434\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-1024x434.jpeg\" class=\"attachment-large size-large wp-image-1294\" alt=\"LiDAR bathym\u00e9trique h\u00e9licopt\u00e8re\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-1024x434.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-300x127.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-768x326.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-18x8.jpeg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-1000x424.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-230x98.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-350x148.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608-480x204.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454608.jpeg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8678e28 elementor-widget elementor-widget-text-editor\" data-id=\"8678e28\" 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><i>Vue en coupe du nuage de points classifi\u00e9\u00a0<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e816eaa elementor-widget elementor-widget-heading\" data-id=\"e816eaa\" 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\">3 - Un chantier rapide et une pr\u00e9cision au rendez-vous <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e2c2e1 elementor-widget elementor-widget-text-editor\" data-id=\"2e2c2e1\" 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 data-start=\"1751\" data-end=\"1923\">En moins de <strong data-start=\"1763\" data-end=\"1789\">4 jours d\u2019intervention<\/strong>, l\u2019\u00e9quipe HELIX a mobilis\u00e9 ses moyens a\u00e9riens, terrestres et GNSS pour produire un ensemble de donn\u00e9es \u00e0 <strong data-start=\"1895\" data-end=\"1921\">haute valeur technique<\/strong> :<\/p><p>\u00a0<\/p><ul data-start=\"1925\" data-end=\"2150\"><li data-start=\"1925\" data-end=\"1993\"><p data-start=\"1927\" data-end=\"1993\">\ud83d\udd39 <strong data-start=\"1930\" data-end=\"1975\">15 km de relev\u00e9s LiDAR Topo-Bathym\u00e9trique<\/strong> par h\u00e9licopt\u00e8re<\/p><\/li><li data-start=\"1994\" data-end=\"2076\"><p data-start=\"1996\" data-end=\"2076\">\ud83d\udd39 <strong data-start=\"1999\" data-end=\"2053\">55 ouvrages et r\u00e9seaux secondaires mod\u00e9lis\u00e9s en 3D<\/strong> au scanner dynamique<\/p><\/li><li data-start=\"2077\" data-end=\"2150\"><p data-start=\"2079\" data-end=\"2150\">\ud83d\udd39 Relev\u00e9s <strong data-start=\"2090\" data-end=\"2106\">drone &amp; GNSS<\/strong> pour le calage et les compl\u00e9ments terrain<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ee38a9 elementor-widget elementor-widget-image\" data-id=\"4ee38a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-1024x768.jpeg\" class=\"attachment-large size-large wp-image-1299\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-1024x768.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-300x225.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-768x576.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-16x12.jpeg 16w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-1000x750.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-230x173.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-350x263.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829-480x360.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454829.jpeg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bda3969 elementor-widget elementor-widget-text-editor\" data-id=\"bda3969\" 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><i>Captation SLAM des ouvrages &#8211; BIM CONCEPT AJACCIO<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-baf251d elementor-widget elementor-widget-image\" data-id=\"baf251d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"526\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-1024x526.jpeg\" class=\"attachment-large size-large wp-image-1310\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-1024x526.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-300x154.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-768x394.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-18x9.jpeg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-1000x513.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-230x118.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-350x180.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642-480x246.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454642.jpeg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8be74f4 elementor-widget elementor-widget-text-editor\" data-id=\"8be74f4\" 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><i>Ouvrage type PONT<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ff3e57 elementor-widget elementor-widget-image\" data-id=\"1ff3e57\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"567\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-1024x567.jpeg\" class=\"attachment-large size-large wp-image-1311\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-1024x567.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-300x166.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-768x425.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-18x10.jpeg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-1000x553.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-230x127.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-350x194.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595-480x266.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454595.jpeg 1272w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-023811f elementor-widget elementor-widget-text-editor\" data-id=\"023811f\" 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><i>Ouvrage type canalisation<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-265029e elementor-widget elementor-widget-heading\" data-id=\"265029e\" 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\">4 - Des r\u00e9sultats concrets et imm\u00e9diatement exploitables<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43c9f20 elementor-widget elementor-widget-text-editor\" data-id=\"43c9f20\" 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>Les deux nuages de points sont ensuite assembl\u00e9s pour cr\u00e9er un MNT \u00e0 r\u00e9solution variable. <br \/>Centim\u00e9trique sur les parties topos et d\u00e9cim\u00e9trique sur les emprises bathy.<\/p><ul data-start=\"2217\" data-end=\"2458\"><li data-start=\"2272\" data-end=\"2372\"><p data-start=\"2274\" data-end=\"2372\">\u2705 <strong data-start=\"2276\" data-end=\"2312\">Erreur Moyenne Quadratique (EMQ)<\/strong> globale &lt; <strong data-start=\"2323\" data-end=\"2331\">5 cm<\/strong> sur une centaine de points de contr\u00f4le<\/p><\/li><li data-start=\"2373\" data-end=\"2458\"><p data-start=\"2375\" data-end=\"2458\">\u2705 Donn\u00e9es bathym\u00e9triques <strong data-start=\"2400\" data-end=\"2431\">jusqu\u2019\u00e0 4,5 m de profondeur<\/strong>, m\u00eame sous <strong data-start=\"2443\" data-end=\"2458\">30 cm d\u2019eau<\/strong><\/p><\/li><\/ul><p>\u00a0<\/p><p data-start=\"2460\" data-end=\"2664\">Ces donn\u00e9es de haute densit\u00e9 permettront \u00e0 <strong data-start=\"2503\" data-end=\"2523\">SUEZ Engineering<\/strong> de construire une <strong data-start=\"2542\" data-end=\"2582\">mod\u00e9lisation hydraulique plus fiable<\/strong>, en s\u2019appuyant sur une base bien plus pr\u00e9cise que lors des campagnes pr\u00e9c\u00e9dentes.<\/p>\t\t\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<div class=\"elementor-element elementor-element-096602f e-flex e-con-boxed e-con e-parent\" data-id=\"096602f\" 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-a4fce3b elementor-widget elementor-widget-image\" data-id=\"a4fce3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"554\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-1024x554.jpg\" class=\"attachment-large size-large wp-image-1313\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-1024x554.jpg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-300x162.jpg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-768x416.jpg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-18x10.jpg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-1000x541.jpg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-230x125.jpg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-350x189.jpg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca-480x260.jpg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/ca.jpg 1524w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d8bcdd elementor-widget elementor-widget-text-editor\" data-id=\"3d8bcdd\" 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><i>MNT topo-bathym\u00e9trique continu &#8211; Colorisation par \u00e9l\u00e9vation<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9ff371 elementor-widget elementor-widget-image\" data-id=\"e9ff371\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"557\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-1024x557.png\" class=\"attachment-large size-large wp-image-1315\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-1024x557.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-300x163.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-768x418.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-1536x835.png 1536w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-18x10.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-1000x544.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-230x125.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-350x190.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min-480x261.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/cap-min.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cded74 elementor-widget elementor-widget-text-editor\" data-id=\"9cded74\" 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><i>MNT topo-bathym\u00e9trique de l&#8217;embouchure ( Port de Porto )\u00a0<\/i><\/p>\t\t\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<div class=\"elementor-element elementor-element-7778c37 e-flex e-con-boxed e-con e-parent\" data-id=\"7778c37\" 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-a3632ba elementor-widget elementor-widget-text-editor\" data-id=\"a3632ba\" 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<h2>9 &#8211; Une mission au c\u0153ur de notre ADN<\/h2><p data-start=\"2711\" data-end=\"2898\">Au-del\u00e0 de la technicit\u00e9, cette mission illustre l\u2019ADN d\u2019HELIX :<br data-start=\"2775\" data-end=\"2778\" \/>\u27a1\ufe0f <strong data-start=\"2781\" data-end=\"2896\">Mettre la technologie au service des territoires, de la pr\u00e9vention des risques et de la s\u00e9curit\u00e9 des habitants.<\/strong><\/p><p data-start=\"2900\" data-end=\"3030\">Nous sommes fiers d\u2019avoir accompagn\u00e9 la commune d\u2019<strong data-start=\"2950\" data-end=\"2957\">Ota<\/strong>, ses habitants et les acteurs publics dans cette d\u00e9marche de r\u00e9silience.<\/p><p data-start=\"2900\" data-end=\"3030\">\u00a0<\/p><p data-start=\"2900\" data-end=\"3030\">\u00a0<\/p><p data-start=\"2900\" data-end=\"3030\">\u00a0<\/p><h2 data-start=\"3037\" data-end=\"3074\">10 &#8211; Remerciements \u00e0 nos partenaires<\/h2><p data-start=\"3076\" data-end=\"3176\">Ce succ\u00e8s est le fruit d\u2019un travail collectif.\u00a0<\/p><p data-start=\"3076\" data-end=\"3176\">Merci \u00e0 ceux qui ont rendu cette mission possible :<\/p><ul data-start=\"3178\" data-end=\"3586\"><li data-start=\"3178\" data-end=\"3213\"><p data-start=\"3180\" data-end=\"3213\">\ud83d\ude81 <strong data-start=\"3183\" data-end=\"3204\">Corse H\u00e9licopt\u00e8re<\/strong> \u2013 Alex<\/p><\/li><li data-start=\"3214\" data-end=\"3275\"><p data-start=\"3216\" data-end=\"3275\">\ud83d\udcd0 <strong data-start=\"3219\" data-end=\"3234\">BIM Concept<\/strong> \u2013 J\u00e9r\u00e9my Parot &amp; Jean-Michel Albertini<\/p><\/li><li data-start=\"3276\" data-end=\"3319\"><p data-start=\"3278\" data-end=\"3319\">\ud83c\udfdb <strong data-start=\"3281\" data-end=\"3297\">Mairie d\u2019Ota<\/strong> \u2013 Monsieur le Maire<\/p><\/li><li data-start=\"3320\" data-end=\"3354\"><p data-start=\"3322\" data-end=\"3354\">\ud83d\udce1 <strong data-start=\"3325\" data-end=\"3337\">Positics<\/strong> \u2013 Boris Leroux<\/p><\/li><li data-start=\"3355\" data-end=\"3389\"><p data-start=\"3357\" data-end=\"3389\">\ud83d\udef0\ufe0f <strong data-start=\"3361\" data-end=\"3370\">Emlid<\/strong> \u2013 Igor Vereninov<\/p><\/li><li data-start=\"3390\" data-end=\"3443\"><p data-start=\"3392\" data-end=\"3443\">\ud83d\udcf8 <strong data-start=\"3395\" data-end=\"3414\">Maxime Randazzo<\/strong> \u2013 pour ses images in\u00e9dites<\/p><\/li><li data-start=\"3444\" data-end=\"3509\"><p data-start=\"3446\" data-end=\"3509\">\ud83c\udf77 <strong data-start=\"3449\" data-end=\"3463\">Chez Marie<\/strong> \u2013 Dino et Marie<\/p><\/li><li data-start=\"3510\" data-end=\"3586\"><p data-start=\"3512\" data-end=\"3586\">\ud83d\udc68\u200d\ud83d\udcbb <strong data-start=\"3518\" data-end=\"3538\">Th\u00e9o Lemor Valli<\/strong><\/p><\/li><\/ul><p data-start=\"3588\" data-end=\"3759\">Et bien s\u00fbr nos partenaires financiers :<\/p><p data-start=\"3588\" data-end=\"3759\"><i><br data-start=\"3628\" data-end=\"3631\" \/><strong data-start=\"3631\" data-end=\"3662\">Cr\u00e9dit Agricole de la Corse<\/strong> \u2013 Yannick Torre<br data-start=\"3678\" data-end=\"3681\" \/><strong data-start=\"3681\" data-end=\"3738\">Agence de D\u00e9veloppement \u00c9conomique de la Corse (ADEC)<\/strong> \u2013 Valentine Olivieri<\/i><\/p><p data-start=\"3588\" data-end=\"3759\"><i>\u00a0<\/i><\/p><p data-start=\"3588\" data-end=\"3759\">\u00a0<\/p><p data-start=\"3796\" data-end=\"3874\"><b>Vous souhaitez en savoir plus sur cette mission ou nous confier votre projet ?<\/b><\/p><p data-start=\"3588\" data-end=\"3759\">\u00a0<\/p><p data-start=\"3876\" data-end=\"4037\">\ud83d\udce7 <a rel=\"noopener\" data-start=\"3879\" data-end=\"3897\">info@helix.corsica<\/a><br data-start=\"3897\" data-end=\"3900\" \/>\ud83c\udf0d <a href=\"http:\/\/www.helix.corsica\" target=\"_new\" rel=\"noopener\" data-start=\"3903\" data-end=\"3948\">www.helix.corsica<\/a><br data-start=\"3948\" data-end=\"3951\" \/>\ud83c\udf10 <a href=\"http:\/\/www.lidar-bathymetrique.fr\/en\/\" target=\"_new\" rel=\"noopener\" data-start=\"3954\" data-end=\"4017\">www.lidar-bathymetrique.fr<\/a><br data-start=\"4017\" data-end=\"4020\" \/>\ud83d\udcde 07 89 02 85 71<\/p><p data-start=\"3876\" data-end=\"4037\">\u00a0<\/p><p data-start=\"3876\" data-end=\"4037\">\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb18a0c elementor-widget elementor-widget-image\" data-id=\"fb18a0c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"586\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-1024x586.jpeg\" class=\"attachment-large size-large wp-image-1309\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" 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\/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87c5c74 elementor-widget elementor-widget-image\" data-id=\"87c5c74\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"514\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454729-1024x514.jpeg\" class=\"attachment-large size-large wp-image-1301\" alt=\"PORTO PPRI LIDAR BATHY HELIX\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454729-1024x514.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454729-300x150.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454729-768x385.jpeg 768w, 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