{"id":68001,"date":"2025-11-24T08:21:51","date_gmt":"2025-11-24T07:21:51","guid":{"rendered":"https:\/\/www.helenefm.com\/?p=68001"},"modified":"2025-11-24T08:21:51","modified_gmt":"2025-11-24T07:21:51","slug":"la-tremblade-un-nouveau-dispositif-pour-surveiller-le-recul-du-trait-de-cote","status":"publish","type":"post","link":"https:\/\/www.helenefm.com\/?p=68001","title":{"rendered":"La Tremblade : un nouveau dispositif pour surveiller le recul du trait de c\u00f4te"},"content":{"rendered":"<div id=\"attachment_68003\" style=\"width: 1510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-68003\" data-attachment-id=\"68003\" data-permalink=\"https:\/\/www.helenefm.com\/?attachment_id=68003\" data-orig-file=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2.jpeg\" data-orig-size=\"1500,2000\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"snapcoast 2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2-768x1024.jpeg\" class=\"wp-image-68003 size-full\" src=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2.jpeg\" alt=\"\" width=\"1500\" height=\"2000\" srcset=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2.jpeg 1500w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2-225x300.jpeg 225w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2-768x1024.jpeg 768w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2-1152x1536.jpeg 1152w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><p id=\"caption-attachment-68003\" class=\"wp-caption-text\">Le totem SnapCoast.<\/p><\/div>\n<div id=\"attachment_68002\" style=\"width: 1510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-68002\" data-attachment-id=\"68002\" data-permalink=\"https:\/\/www.helenefm.com\/?attachment_id=68002\" data-orig-file=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1.jpeg\" data-orig-size=\"1500,2000\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"snapcoast 1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1-768x1024.jpeg\" class=\"wp-image-68002 size-full\" src=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1.jpeg\" alt=\"\" width=\"1500\" height=\"2000\" srcset=\"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1.jpeg 1500w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1-225x300.jpeg 225w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1-768x1024.jpeg 768w, https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-1-1152x1536.jpeg 1152w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><p id=\"caption-attachment-68002\" class=\"wp-caption-text\">Inauguration en pr\u00e9sence des \u00e9lus et de la sous-pr\u00e9f\u00e8te.<\/p><\/div>\n<p>L\u2019inauguration vendredi apr\u00e8s-midi \u00e0 La Tremblade d\u2019un nouveau dispositif de suivi du trait de c\u00f4te. \u00c7a s\u2019appelle CoastSnap. Un totem, accessible \u00e0 tous, a \u00e9t\u00e9 install\u00e9 sur la plage de l\u2019Embellie. Il permet de prendre des photos, avec le m\u00eame cadrage et le m\u00eame angle, et de les envoyer sur un serveur. Les images ainsi collect\u00e9es permettent d\u2019observer l\u2019\u00e9volution de l\u2019\u00e9rosion.<br \/>\nCoastSnap fait appel aux sciences participatives pour l\u2019observation citoyenne du littoral. Accessible \u00e0 tous, le dispositif s\u2019\u00e9rige en outil pr\u00e9cieux pour suivre les changements du trait de c\u00f4te. \u00c0 partir de photographies de plages prises r\u00e9guli\u00e8rement depuis des stations fixes, en conservant le m\u00eame cadrage et le m\u00eame angle, il est possible d\u2019observer les \u00e9volutions du littoral, et ainsi d\u2019extraire des donn\u00e9es scientifiques comme la hauteur et la largeur des plages, ou encore les changements avant et apr\u00e8s une temp\u00eate. Les photos sont envoy\u00e9es sur un serveur en ligne, ce qui permet de conna\u00eetre la date et l&rsquo;heure de la prise de vue, ainsi que la mar\u00e9e. Ces donn\u00e9es permettent de visualiser les changements du littoral, le recul du trait de c\u00f4te et de calculer le changement des volumes de sable. Sur le territoire de la Communaut\u00e9 d\u2019Agglom\u00e9ration Royan Atlantique, deux premiers totems CoastSnap ont \u00e9t\u00e9 install\u00e9s sur la plage de l\u2019Embellie \u00e0 La Tremblade, et celle de la Grande c\u00f4te \u00e0 Saint-Palais-sur-Mer. Deux autres seront implant\u00e9s en 2026.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019inauguration vendredi apr\u00e8s-midi \u00e0 La Tremblade d\u2019un nouveau dispositif de suivi du trait de c\u00f4te. \u00c7a s\u2019appelle CoastSnap. Un totem, accessible \u00e0 tous, a \u00e9t\u00e9 install\u00e9 sur la plage de l\u2019Embellie. Il<a class=\"moretag\" href=\"https:\/\/www.helenefm.com\/?p=68001\">Lire la suite&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":68003,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[103],"tags":[45],"class_list":["post-68001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fil-infos-redaction","tag-royan"],"views":440,"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.helenefm.com\/wordpress\/wp-content\/uploads\/2025\/11\/snapcoast-2.jpeg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p48eP9-hGN","_links":{"self":[{"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/posts\/68001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=68001"}],"version-history":[{"count":1,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/posts\/68001\/revisions"}],"predecessor-version":[{"id":68005,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/posts\/68001\/revisions\/68005"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=\/wp\/v2\/media\/68003"}],"wp:attachment":[{"href":"https:\/\/www.helenefm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=68001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=68001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.helenefm.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=68001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}