{"id":536,"date":"2015-06-09T09:11:00","date_gmt":"2015-06-09T07:11:00","guid":{"rendered":"https:\/\/kids.esa.int\/sentinel_satellites_to_stand_watch_over_earth\/"},"modified":"2026-10-08T00:29:21","modified_gmt":"2026-10-07T22:29:21","slug":"sentinel_satellites_to_stand_watch_over_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/sentinel_satellites_to_stand_watch_over_earth\/","title":{"rendered":"Les satellites Sentinelles vont veiller sur la Terre"},"content":{"rendered":"<div class=\"lede\">\n<p>Il est incroyable de penser que, malgr\u00e9 le calme apparent d\u2019un ciel bleu et d\u00e9gag\u00e9 pendant une belle journ\u00e9e ensoleill\u00e9e, on y trouve en r\u00e9alit\u00e9 des milliers de satellites en m\u00e9tal qui survolent inlassablement la Terre !<\/p>\n<\/div>\n<p>Ces travailleurs invisibles accomplissent des t\u00e2ches de la plus haute importance, en nous permettant aussi bien de garder contact avec nos familles et nos amis que de mieux comprendre les sp\u00e9cificit\u00e9s de notre belle plan\u00e8te.<\/p>\n<p>La nouvelle flotte de satellites de l\u2019Agence spatiale europ\u00e9enne, baptis\u00e9e les Sentinelles, tire son nom des soldats dont la mission consiste \u00e0 monter la garde pour prot\u00e9ger des populations. La mission des satellites Sentinelles sera identique !<\/p>\n<p>Ces satellites d\u2019observation de la Terre, d\u00e9di\u00e9s aussi bien \u00e0 l\u2019oc\u00e9anographie que la m\u00e9t\u00e9orologie, survoleront notre plan\u00e8te pour l\u2019explorer tous ensemble de fond en comble. Les donn\u00e9es qu\u2019ils nous renverront devraient nous aider \u00e0 r\u00e9soudre toutes sortes de probl\u00e8mes environnementaux, qu\u2019ils soient d\u2019origine naturelle ou provoqu\u00e9s par l\u2019homme.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1280\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/06\/Colour_vision_for_Sentinel-2\" 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\/2015\/06\/colour_vision_for_sentinel-2\/17904824-2-eng-GB\/Colour_vision_for_Sentinel-2.jpg\" alt=\"Colour vision for Sentinel-2\"><figcaption>Vision des couleurs pour Sentinel-2<\/figcaption><\/figure>\n<p>La famille Sentinelle continue de grandir. Apr\u00e8s le lancement du tout premier satellite l\u2019an dernier, elle devrait accueillir ce mois-ci un tout nouveau membre : le Sentinelle-2A. Ce satellite, dont le lancement est pr\u00e9vu pour le 23 juin prochain, sera le premier d\u2019un duo d\u00e9nomm\u00e9 Sentinelle-2. Le second satellite, Sentinelle-2B, le rejoindra dans l\u2019espace en 2016.<\/p>\n<p>Les satellites de la mission Sentinelle-2 embarqueront une puissante cam\u00e9ra capable de capturer des images en couleur extr\u00eamement d\u00e9taill\u00e9es. Ce couple de satellites \u00e9tudiera la v\u00e9g\u00e9tation et les \u00e9tendues d\u2019eau qui recouvrent la surface de la Terre. Les donn\u00e9es collect\u00e9es nous serviront \u00e0 parfaire nos techniques d\u2019agriculture de mani\u00e8re \u00e0 am\u00e9liorer notre production agricole et \u00e0 mieux d\u00e9tecter les risques de pollution des eaux.<\/p>\n<p>La mission Sentinelle-2 surveillera \u00e9galement l\u2019\u00e9tat des for\u00eats et l\u2019\u00e9volution des zones urbaines. Les deux satellites nous aideront par ailleurs \u00e0 mieux \u00e9valuer les risques de catastrophes sanitaires et \u00e0 accompagner les populations civiles pendant les situations de crise. En deux mots, ils nous aideront \u00e0 prot\u00e9ger les pr\u00e9cieuses ressources et populations de notre monde.<\/p>\n<p><b>Anecdote sympa :<\/b> Sentinel-2A sera en orbite \u00e0 une altitude deux fois plus \u00e9lev\u00e9e que celle de la Station spatiale internationale !<\/p>","protected":false},"excerpt":{"rendered":"<p>It\u2019s incredible to think that despite how empty the clear blue sky looks on a sunny day, there are actually thousands of big, metal satellites flying around our planet! These [&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\/2015\/04\/sentinel-2\/17894499-2-eng-GB\/Sentinel-2.jpg","esa_banner_description":"Sentinel-2","esa_banner_credit":"ESA\/ATG medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/04\/Sentinel-2","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-536","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\/536","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=536"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/536\/revisions"}],"predecessor-version":[{"id":4536,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/536\/revisions\/4536"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=536"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=536"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=536"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=536"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=536"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=536"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=536"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}