{"id":1342,"date":"2025-09-25T15:08:58","date_gmt":"2025-09-25T13:08:58","guid":{"rendered":"https:\/\/www.lidar-bathymetrique.fr\/?p=1342"},"modified":"2026-05-02T18:00:56","modified_gmt":"2026-05-02T16:00:56","slug":"survey-bathymetrie-lidar-baie-de-calvi","status":"publish","type":"post","link":"https:\/\/www.lidar-bathymetrique.fr\/en\/bathymetrie-lidar\/survey-bathymetrie-lidar-baie-de-calvi\/","title":{"rendered":"Suivi de l&rsquo;\u00e9rosion littorale \u00e0 Calvi : bilan s\u00e9dimentaire 2019\u20132025 par LiDAR bathym\u00e9trique (mission BRGM)"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1342\" class=\"elementor elementor-1342\" 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>BAIE DE CALVI &#8211; Relev\u00e9 LiDAR bathym\u00e9trique 170Ha<\/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 : BRGM de Corse<\/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> : Calvi<br \/><strong>Data Acquisition<\/strong> : LiDAR Bathym\u00e9trique + RGB<br \/><strong>Verification<\/strong> : GNSS + Profils en travers<br \/><strong>Deliverable<\/strong> : MNS \/ MNT \/ Ortho \/ MNH<br \/><strong>Resolution<\/strong> : Haute densit\u00e9<br \/><strong>Precision<\/strong> : D\u00e9cim\u00e9trique<\/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=\"354\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1024x354.png\" class=\"attachment-large size-large wp-image-1345\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1024x354.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-300x104.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-768x266.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-18x6.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1000x346.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-230x80.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-350x121.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-480x166.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7.png 1171w\" 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>L\u2019\u00e9rosion littorale est une probl\u00e9matique majeure pour de nombreuses communes corses. Pour mieux la comprendre et la suivre, le <strong data-start=\"531\" data-end=\"539\">BRGM<\/strong> a confi\u00e9 \u00e0 <strong data-start=\"551\" data-end=\"560\">HELIX<\/strong> la r\u00e9alisation d\u2019un relev\u00e9 LiDAR bathym\u00e9trique sur le littoral de Calvi.<\/p><p><b>Objectif <\/b>: comparer un lev\u00e9 historique du <strong data-start=\"678\" data-end=\"693\">SHOM (2019)<\/strong> avec un lev\u00e9 actuel (2025), afin de dresser un bilan s\u00e9dimentaire pr\u00e9cis et d\u2019\u00e9valuer l\u2019\u00e9volution de la plage.<\/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 - Contexte et objectifs<\/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=\"840\" data-end=\"1078\">Les plages sableuses, soumises \u00e0 la houle, aux temp\u00eates et \u00e0 l\u2019activit\u00e9 humaine, \u00e9voluent rapidement. Pouvoir mesurer ces \u00e9volutions est essentiel pour anticiper les risques et adapter la gestion du littoral.<br data-start=\"1048\" data-end=\"1051\" \/>Le projet visait donc \u00e0 :<\/p><ul data-start=\"1079\" data-end=\"1350\"><li data-start=\"1079\" data-end=\"1151\"><p data-start=\"1081\" data-end=\"1151\"><strong data-start=\"1081\" data-end=\"1111\">Cartographier 170 hectares<\/strong> de fonds marins entre +10 m et \u201313 m,<\/p><\/li><li data-start=\"1152\" data-end=\"1210\"><p data-start=\"1154\" data-end=\"1210\"><strong data-start=\"1154\" data-end=\"1207\">Produire un MNT de haute r\u00e9solution (12 cm\/pixel)<\/strong>,<\/p><\/li><li data-start=\"1211\" data-end=\"1262\"><p data-start=\"1213\" data-end=\"1262\">Comparer les donn\u00e9es avec le lev\u00e9 SHOM de 2019,<\/p><\/li><li data-start=\"1263\" data-end=\"1350\"><p data-start=\"1265\" data-end=\"1350\">Identifier les zones d\u2019accr\u00e9tion (apports s\u00e9dimentaires) et de r\u00e9gression (pertes).<\/p><\/li><\/ul>\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=\"828\" height=\"453\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10.png\" class=\"attachment-large size-large wp-image-1347\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10.png 828w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-300x164.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-768x420.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-18x10.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-230x126.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-350x191.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-10-480x263.png 480w\" sizes=\"(max-width: 828px) 100vw, 828px\" \/>\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 drone<\/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 - R\u00e9sultats et apports du LiDAR bathym\u00e9trique<\/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=\"2120\" data-end=\"2152\">Les cartes obtenues r\u00e9v\u00e8lent :<\/p><ul data-start=\"2153\" data-end=\"2420\"><li data-start=\"2153\" data-end=\"2236\"><p data-start=\"2155\" data-end=\"2236\">La <strong data-start=\"2158\" data-end=\"2176\">d\u00e9tection fine<\/strong> d\u2019objets immerg\u00e9s (corps-morts, pneus, digues rocheuses),<\/p><\/li><li data-start=\"2237\" data-end=\"2286\"><p data-start=\"2239\" data-end=\"2286\">La <strong data-start=\"2242\" data-end=\"2283\">morphologie d\u00e9taill\u00e9e du fond sableux<\/strong>,<\/p><\/li><li data-start=\"2287\" data-end=\"2352\"><p data-start=\"2289\" data-end=\"2352\">Des comparaisons haute r\u00e9solution avec les donn\u00e9es SHOM 2019,<\/p><\/li><li data-start=\"2353\" data-end=\"2420\"><p data-start=\"2355\" data-end=\"2420\">La mise en \u00e9vidence des <strong data-start=\"2379\" data-end=\"2417\">zones d\u2019accr\u00e9tion et de r\u00e9gression<\/strong>.<\/p><\/li><\/ul><p data-start=\"2422\" data-end=\"2582\">\u27a1\ufe0f Gr\u00e2ce \u00e0 ces donn\u00e9es, le BRGM dispose d\u00e9sormais d\u2019une base solide pour dresser un bilan s\u00e9dimentaire actualis\u00e9 et affiner ses mod\u00e8les de suivi de l\u2019\u00e9rosion.<\/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=\"436\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-1024x436.png\" class=\"attachment-large size-large wp-image-1343\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-1024x436.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-300x128.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-768x327.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-18x8.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-1000x426.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-230x98.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-350x149.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6-480x205.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-6.png 1366w\" 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-fad28cb elementor-widget elementor-widget-text-editor\" data-id=\"fad28cb\" 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 &#8211; Lidar vert<\/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-a30f02c elementor-widget elementor-widget-image\" data-id=\"a30f02c\" 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=\"530\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-1024x530.png\" class=\"attachment-large size-large wp-image-1348\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-1024x530.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-300x155.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-768x398.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-1536x795.png 1536w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-18x9.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-1000x518.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-230x119.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-350x181.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5-480x249.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-5.png 1566w\" 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-cd6bc6c elementor-widget elementor-widget-text-editor\" data-id=\"cd6bc6c\" 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>Zoom sur MNT produit par HELIX en 2025<\/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-28c24d5 elementor-widget elementor-widget-image\" data-id=\"28c24d5\" 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=\"636\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-1024x636.png\" class=\"attachment-large size-large wp-image-1349\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-1024x636.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-300x186.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-768x477.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-18x12.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-1000x621.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-230x143.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-350x217.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3-480x298.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-3.png 1212w\" 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-852c050 elementor-widget elementor-widget-text-editor\" data-id=\"852c050\" 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>M\u00eame emprise depuis le MNT Shom Lito3D &#8211; 2019<\/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 - Une technologie adapt\u00e9e aux milieux c\u00f4tiers<\/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=\"2638\" data-end=\"2764\">Le LiDAR bathym\u00e9trique ne remplace pas les lev\u00e9s sonar, mais il s\u2019impose comme une solution unique dans les environnements :<\/p><ul data-start=\"2765\" data-end=\"2878\"><li data-start=\"2765\" data-end=\"2791\"><p data-start=\"2767\" data-end=\"2791\">\u00e0 faibles profondeurs,<\/p><\/li><li data-start=\"2792\" data-end=\"2832\"><p data-start=\"2794\" data-end=\"2832\">avec eau claire et substrat sableux,<\/p><\/li><li data-start=\"2833\" data-end=\"2878\"><p data-start=\"2835\" data-end=\"2878\">o\u00f9 la haute r\u00e9solution est indispensable.<\/p><\/li><\/ul><p data-start=\"2880\" data-end=\"3028\">Il ouvre ainsi de nouvelles perspectives pour le <strong data-start=\"2929\" data-end=\"2960\">monitoring du trait de c\u00f4te<\/strong>, les <strong data-start=\"2966\" data-end=\"2985\">\u00e9tudes d\u2019impact<\/strong> et la <strong data-start=\"2992\" data-end=\"3025\">gestion des risques littoraux<\/strong>.<\/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-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 fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"354\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1024x354.png\" class=\"attachment-large size-large wp-image-1345\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1024x354.png 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-300x104.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-768x266.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-18x6.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-1000x346.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-230x80.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-350x121.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7-480x166.png 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-7.png 1171w\" 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>Vue en coupe &#8211; perspective &#8211; nuage de points topo bathym\u00e9trique coloris\u00e9 par orthophotographie<\/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=\"1022\" height=\"609\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2.png\" class=\"attachment-large size-large wp-image-1350\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2.png 1022w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-300x179.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-768x458.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-18x12.png 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-1000x596.png 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-230x137.png 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-350x209.png 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-2-480x286.png 480w\" sizes=\"(max-width: 1022px) 100vw, 1022px\" \/>\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>Mouvements des s\u00e9diments ( Bleu = accr\u00e9tion \/ Rouge = r\u00e9gr\u00e9ssion ) &#8211; MNT 2025 &#8211; MNT 2019 ( Shom)<\/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\">Remerciements<\/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>Enfin, nous adressons nos remerciements \u00e0 la <strong data-start=\"3099\" data-end=\"3128\">tour de contr\u00f4le de Calvi<\/strong>, qui a su nous int\u00e9grer dans un trafic a\u00e9rien tr\u00e8s dense (liners, A400M, Milan 75, Piranha, aviation l\u00e9g\u00e8re). Leur disponibilit\u00e9 et leur pr\u00e9cision ont grandement contribu\u00e9 \u00e0 la s\u00e9curit\u00e9 et au bon d\u00e9roulement de la mission.<\/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=\"768\" height=\"1024\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-768x1024.jpeg\" class=\"attachment-large size-large wp-image-1351\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-768x1024.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-225x300.jpeg 225w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-1152x1536.jpeg 1152w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-9x12.jpeg 9w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-1000x1333.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-230x307.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-350x467.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1-480x640.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-1.jpeg 1536w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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>2\u00e9 REP &#8211; Calvi en exercice\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-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\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-1024x586.jpeg 1024w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-300x172.jpeg 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-768x440.jpeg 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-18x10.jpeg 18w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-1000x573.jpeg 1000w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-230x132.jpeg 230w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-350x200.jpeg 350w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937-480x275.jpeg 480w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/07\/1750086454937.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-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<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=\"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>\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=\"800\" height=\"690\" src=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4.png\" class=\"attachment-large size-large wp-image-1352\" alt=\"lidar bathymetrique drone helix\" srcset=\"https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4.png 800w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4-300x259.png 300w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4-768x662.png 768w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4-14x12.png 14w, https:\/\/www.lidar-bathymetrique.fr\/wp-content\/uploads\/2025\/09\/lidar_bathymetrique_calvi_helix-4-230x198.png 230w, 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[&hellip;]<\/p>","protected":false},"author":1,"featured_media":1343,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,38],"tags":[33,12,13,45,54,27,26,34,29,14,36,35,53,55,32],"class_list":["post-1342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bathymetrie-lidar","category-releves","tag-bathymetric-lidar","tag-bathymetrie","tag-bathymetrie-lidar","tag-bathymetrie-portuaire","tag-ddt","tag-erosion","tag-genie-civil","tag-green-lidar","tag-inondation","tag-lidar","tag-lidar-aerien","tag-lidar-vert","tag-porto","tag-pref2a","tag-releve-bathymetrique-lidar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LiDAR bathym\u00e9trique Calvi : suivi \u00e9rosion BRGM<\/title>\n<meta name=\"description\" content=\"HELIX r\u00e9alise un relev\u00e9 LiDAR 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