{"id":436,"date":"2017-07-10T08:40:00","date_gmt":"2017-07-10T06:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_satellites_see_giant_iceberg_ready_to_break_free\/"},"modified":"2026-10-08T00:28:11","modified_gmt":"2026-10-07T22:28:11","slug":"esa_satellites_see_giant_iceberg_ready_to_break_free","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/esa_satellites_see_giant_iceberg_ready_to_break_free\/","title":{"rendered":"Des satellites de l\u2019ESA suivent la formation d\u2019un iceberg g\u00e9ant"},"content":{"rendered":"<div class=\"lede\">\n<p>Une immense faille - longue de quasiment 200 kilom\u00e8tres - est r\u00e9cemment apparue dans l\u2019Antarctique, en entra\u00eenant la formation d\u2019un immense bloc de glace qui s\u2019appr\u00eate aujourd'hui \u00e0 se s\u00e9parer de sa plateforme glaci\u00e8re. Le d\u00e9veloppement de cette faille va bient\u00f4t provoquer la s\u00e9paration du bloc de glace, qui va alors flotter dans l\u2019oc\u00e9an en devenant l\u2019un des plus gros icebergs que nous ayons jamais connus !<\/p>\n<\/div>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\/AOES Medialab\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/07\/CryoSat_is_used_to_measure_the_changing_thickness_of_ice_on_Earth\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/07\/cryosat_is_used_to_measure_the_changing_thickness_of_ice_on_earth\/18247401-2-eng-GB\/CryoSat_is_used_to_measure_the_changing_thickness_of_ice_on_Earth.jpg\" alt=\"CryoSat is used to measure the changing thickness of ice on Earth\"><figcaption>CryoSat sert \u00e0 mesurer les variations d'\u00e9paisseur de la glace sur Terre<\/figcaption><\/figure>\n<p>Des chercheurs de l\u2019ESA ont \u00e9tudi\u00e9 ce ph\u00e9nom\u00e8ne avec l\u2019aide du satellite CryoSat et du couple de satellites Sentinelle 1A et Sentinelle 1B. Les donn\u00e9es collect\u00e9es d\u00e9montrent que l\u2019iceberg contient un total incroyable de 1 155 kilom\u00e8tres cubes de glace ! Cet iceberg culminera \u00e0 30 m\u00e8tres au-dessus de la mer... mais sa profondeur sous le niveau de l'eau d\u00e9passera 200 m\u00e8tres !<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\u2013Pierre Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/07\/Sentinel_satellites_watch_over_Earth\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/07\/sentinel_satellites_watch_over_earth\/18250879-2-eng-GB\/Sentinel_satellites_watch_over_Earth.jpg\" alt=\"Sentinel satellites watch over Earth\"><figcaption>Les satellites Sentinel veillent sur la Terre<\/figcaption><\/figure>\n<p>M\u00eame si des icebergs se d\u00e9tachent fr\u00e9quemment de la calotte glaciaire dans l'Antarctique, celui-ci sera d\u2019une grandeur sans pr\u00e9c\u00e9dent. Sa taille pourrait aller jusqu\u2019\u00e0 mettre en p\u00e9ril des navires, c\u2019est pourquoi nous devrons le surveiller alors qu\u2019il flottera sur l'oc\u00e9an. Cette mission s\u2019annonce difficile, car l\u2019iceberg va probablement se s\u00e9parer en plusieurs morceaux - pr\u00e9sentant tous un v\u00e9ritable danger. Les satellites de l\u2019ESA vont surveiller cet iceberg, ce que ne manqueront pas d\u2019appr\u00e9cier les navigateurs \u00e0 proximit\u00e9 !<\/p>\n<p>Le satellite CryoSat a \u00e9t\u00e9 con\u00e7u pour nous aider \u00e0 mieux comprendre l\u2019\u00e9volution des couches de glace de notre plan\u00e8te \u00e0 mesure des changements climatiques. De leur c\u00f4t\u00e9, les satellites Sentinelle prennent des photographies et collectent des donn\u00e9es sur la Terre afin de nous aider \u00e0 prot\u00e9ger notre plan\u00e8te avec davantage d\u2019efficacit\u00e9. Ensemble, ces prodigieux outils nous aident \u00e0 \u00e9tudier des \u00e9v\u00e9nements climatiques comme la formation des icebergs.<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> Les satellites Sentinel utilisent une technologie avanc\u00e9e d'imagerie radar qui leur permet de prendre des photos m\u00eame \u00e0 travers une \u00e9paisse couche nuageuse !<\/p>","protected":false},"excerpt":{"rendered":"<p>A deep crack almost 200km long has appeared in Antarctica, leaving a huge chunk of ice barely connected to its ice shelf. Before long the crack will completely separate the [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/07\/this_iceberg_will_be_one_of_the_biggest_ever_seen\/17911750-2-eng-GB\/This_iceberg_will_be_one_of_the_biggest_ever_seen.jpg","esa_banner_description":"This iceberg will be one of the biggest ever seen","esa_banner_credit":"University of Edinburgh\u2013N. Gourmelen","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/07\/This_iceberg_will_be_one_of_the_biggest_ever_seen","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-436","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=436"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/436\/revisions"}],"predecessor-version":[{"id":4472,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/436\/revisions\/4472"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=436"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=436"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=436"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=436"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=436"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=436"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=436"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}