{"id":14391,"date":"2018-12-16T22:00:22","date_gmt":"2018-12-16T21:00:22","guid":{"rendered":"https:\/\/lldl.eu\/?p=10890"},"modified":"2019-04-05T09:47:25","modified_gmt":"2019-04-05T08:47:25","slug":"la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique","status":"publish","type":"post","link":"https:\/\/legrandcontinent.eu\/fr\/2018\/12\/16\/la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique\/","title":{"rendered":"La garde c\u00f4ti\u00e8re \u00e9tatsunienne utilise l\u2019espace pour garder le contr\u00f4le de l\u2019Arctique"},"content":{"rendered":"\n<p><em>Washington \u2013 <\/em>Lundi 3 d\u00e9cembre, la Garde C\u00f4ti\u00e8re \u00e9tatsunienne a lanc\u00e9 en orbite, pour la premi\u00e8re fois dans son histoire, deux <em>\u00a0CubeSats <\/em>(petits satellites de la taille d\u2019une bo\u00eete \u00e0 chaussures) dans le cadre de la mission Polar Scout, et en partenariat avec le D\u00e9partement de la Homeland Security&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-1-14391' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2018\/12\/16\/la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique\/#easy-footnote-bottom-1-14391' title='MAGNUSON Stew,&lt;a href=&quot;http:\/\/www.nationaldefensemagazine.org\/articles\/2018\/12\/3\/coast-guard-launches-polar-communication-satellites&quot;&gt; Coast Guard Launches Polar Communication Satellites&lt;\/a&gt;,National Defense Review, 03\/12\/2018.'><sup>1<\/sup><\/a><\/span><\/span> . Durant les deux ou trois prochaines ann\u00e9es, ces deux petits satellites, baptis\u00e9s Kodiak et Yukon, auront pour t\u00e2che de recueillir des donn\u00e9es sur la r\u00e9gion arctique et de les transmettre \u00e0 l\u2019Acad\u00e9mie de la Garde C\u00f4ti\u00e8re de New London, au Connecticut, et \u00e0 l\u2019Universit\u00e9 d\u2019Alaska Fairbanks.<\/p>\n\n\n\n<p>Les donn\u00e9es recueillies serviront \u00e0 r\u00e9duire les d\u00e9lais des op\u00e9rations de recherche et de sauvetage en cas d\u2019urgence \u2013 surtout en pr\u00e9vision d\u2019une augmentation du transit commercial dans la zone au cours des prochaines ann\u00e9es. De telles op\u00e9rations sont actuellement tr\u00e8s complexes \u00e0 cause des conditions climatiques de la r\u00e9gion. Chacun des deux satellites volera au-dessus du P\u00f4le Nord quinze \u00e0 seize fois par jour, pour une couverture de trois heures par jour et par satellite de la r\u00e9gion arctique.<\/p>\n\n\n\n<p>En cas de succ\u00e8s, la garde c\u00f4ti\u00e8re esp\u00e8re en \u00e9largir les applications \u00e0 d\u2019autres domaines &#8211; notamment celui des t\u00e9l\u00e9communications qui, dans la zone arctique, disposent d\u2019infrastructures plut\u00f4t arri\u00e9r\u00e9es par rapport au reste du globe. Les donn\u00e9es ainsi recueillies pourraient \u00eatre appliqu\u00e9es \u00e0 la lutte contre les activit\u00e9s ill\u00e9gales&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-2-14391' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2018\/12\/16\/la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique\/#easy-footnote-bottom-2-14391' title='SCHREIBER Melody,&lt;a href=&quot;https:\/\/www.arctictoday.com\/coast-guard-launching-small-satellites-arctic-search-rescue\/&quot;&gt; The Coast Guard is launching small satellites for Arctic search and rescue&lt;\/a&gt;, Arctic Today, 12\/06\/2018.'><sup>2<\/sup><\/a><\/span><\/span> .<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Perspectives&#160;:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>L\u2019envoi des deux satellites t\u00e9moigne de la volont\u00e9 des Etats-Unis d\u2019\u00eatre pr\u00e9sents dans la r\u00e9gion, malgr\u00e9 un relatif d\u00e9savantage par rapport \u00e0 la Chine et, surtout, par rapport \u00e0 la Russie. La mission peut \u00eatre consid\u00e9r\u00e9e comme l\u2019h\u00e9ritage laiss\u00e9 par l\u2019ancien amiral de la Garde C\u00f4ti\u00e8re \u00e9tatsunienne Paul Zukunft, qui avait indiqu\u00e9 l\u2019Arctique comme l\u2019une des priorit\u00e9s strat\u00e9giques de Washington pour les ann\u00e9es \u00e0 venir, et peu avant son d\u00e9part, avait attir\u00e9 l\u2019attention sur la difficult\u00e9 d\u2019entreprendre des actions de recherche et sauvetage dans la r\u00e9gion&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-3-14391' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2018\/12\/16\/la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique\/#easy-footnote-bottom-3-14391' title='SCHREIBER Melody,&lt;a href=&quot;https:\/\/www.arctictoday.com\/outgoing-commandant-says-arctic-become-top-priority-us-coast-guard\/&quot;&gt; Outgoing commandant says Arctic has become a top priority for Us Coast Guard&lt;\/a&gt;, Arctic Today, 09\/05\/2018.'><sup>3<\/sup><\/a><\/span><\/span> .<\/li><li>Le lancement en orbite a \u00e9t\u00e9 effectu\u00e9 par l\u2019entreprise spatiale SpaceX qui a lanc\u00e9 simultan\u00e9ment, avec son <em>SmallSat Express, <\/em>64 mini-satellites (15 <em>microsats<\/em> et 49 <em>cubesats<\/em>). Jamais autant de satellites avaient \u00e9t\u00e9 lanc\u00e9s simultan\u00e9ment&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-4-14391' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2018\/12\/16\/la-garde-cotiere-etatsunienne-utilise-lespace-pour-garder-le-controle-de-larctique\/#easy-footnote-bottom-4-14391' title='NYIRADY Annamarie,&lt;a href=&quot;https:\/\/www.satellitetoday.com\/launch\/2018\/12\/04\/spacex-blasts-through-records-with-smallsat-express-launch\/&quot;&gt; SpaceX Blasts Through Records with SmallSat Express Launch&lt;\/a&gt;, Via Satellite, 04\/12\/2018.'><sup>4<\/sup><\/a><\/span><\/span> .<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Sources&#160;:<\/strong><\/h4>\n\n\n\n<ol class=\"wp-block-list\"><li>MAGNUSON Stew,<a href=\"http:\/\/www.nationaldefensemagazine.org\/articles\/2018\/12\/3\/coast-guard-launches-polar-communication-satellites\"> Coast Guard Launches Polar Communication Satellites<\/a>,National Defense Review, 03\/12\/2018.<\/li><li>NYIRADY Annamarie,<a href=\"https:\/\/www.satellitetoday.com\/launch\/2018\/12\/04\/spacex-blasts-through-records-with-smallsat-express-launch\/\"> SpaceX Blasts Through Records with SmallSat Express Launch<\/a>, Via Satellite, 04\/12\/2018.<\/li><li>SCHREIBER Melody,<a href=\"https:\/\/www.arctictoday.com\/outgoing-commandant-says-arctic-become-top-priority-us-coast-guard\/\"> Outgoing commandant says Arctic has become a top priority for Us Coast Guard<\/a>, Arctic Today, 09\/05\/2018.<\/li><li>SCHREIBER Melody,<a href=\"https:\/\/www.arctictoday.com\/coast-guard-launching-small-satellites-arctic-search-rescue\/\"> The Coast Guard is launching small satellites for Arctic search and rescue<\/a>, Arctic Today, 12\/06\/2018.<\/li><\/ol>\n\n\n\n<p><strong>Luca Lottero<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les donn\u00e9es recueillies par les satellites Kodiak et Yukon serviront \u00e0 faciliter les op\u00e9rations de recherche et sauvetage en cas d\u2019urgence, mais pourraient avoir d\u2019autres applications par la suite.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"templates\/post-briefings.php","format":"standard","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"footnotes":""},"categories":[1729],"tags":[],"staff":[1667],"editorial_format":[],"serie":[],"audience":[],"geo":[525,547],"class_list":["post-14391","post","type-post","status-publish","format-standard","hentry","category-numerique","staff-luca-lottero","geo-ameriques","geo-nordiques"],"acf":{"open_in_webview":false,"accent":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>La garde c\u00f4ti\u00e8re \u00e9tatsunienne utilise l\u2019espace pour garder le contr\u00f4le de l\u2019Arctique | Le Grand 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