{"id":522,"date":"2015-05-13T11:38:05","date_gmt":"2015-05-13T10:38:05","guid":{"rendered":"https:\/\/asal.dz\/?p=522"},"modified":"2018-12-23T14:09:19","modified_gmt":"2018-12-23T13:09:19","slug":"le-volcan-calbuco-chili-vu-par-alsat-2a","status":"publish","type":"post","link":"https:\/\/asal.dz\/?p=522","title":{"rendered":"Le Volcan Calbuco \u2013 Chili vu par Alsat-2A"},"content":{"rendered":"

Le Calbuco est un volcan chilien situ\u00e9 \u00e0 1070 km au Sud de la capitale Santiago. Il s\u2019\u00e9l\u00e8ve au Sud-Est du Lac Llanquihue, \u00e0 25 km au Nord-Est de la ville de Puerto Montt<\/em> et \u00e0 15 km au Sud-Ouest du site touristique La Ensenada.<\/em><\/p>\n

Culminant \u00e0 2003 m d\u2019altitude, ce volcan est entr\u00e9 soudainement en \u00e9ruption le 22 avril 2015 \u00e0 18.00 (heure locale), en projetant un nuage de cendres, de pierres et de lave et entrainant le d\u00e9placement de 6000 habitants.<\/p>\n

Cette \u00e9ruption a provoqu\u00e9 aussi le d\u00e9gel des glaciers situ\u00e9s sur le crat\u00e8re avec un d\u00e9bordement des principaux cours d\u2019eau.<\/p>\n

L\u2019image Alsat-2A prise le 28 avril 2015, soit 6 jours apr\u00e8s la premi\u00e8re \u00e9ruption, montre l\u2019instabilit\u00e9 du volcan, qui reste encore actif. En effet, une autre \u00e9ruption s\u2019est produite le 30 avril 2015.<\/p>\n

La derni\u00e8re \u00e9ruption du Calbuco remonte \u00e0 l\u2019\u00e9t\u00e9 1972. De type stratovolcan, il est consid\u00e9r\u00e9 parmi les plus dangereux des 90 volcans que compte le Chili. Le plus proche volcan du Calbuco, l\u2019Osorno (2652 m), situ\u00e9 \u00e0 26 km au Nord-Est, est rest\u00e9 inactif.<\/p>\n

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Fig.01\u00a0: localisation de la bande Alsat-2A sur fond image satellitaire.<\/p>\n

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Fig.02\u00a0: Visualisation de la r\u00e9gion de Calbuco – Chili sur image satellitaire Alsat-2A<\/strong><\/p>\n

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Fig.03: Visualisation du volcan Calbuco sur image satellitaire Alsat-2A<\/p>\n

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Fig.03a: Visualisation du zoom A sur image satellitaire Alsat-2A<\/p>\n

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Fig.03b: Visualisation du zoom B sur image satellitaire Alsat-2A<\/p>\n

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Fig.04: Visualisation volcan Calbuco sur image satellitaire Alsat-2A, mode fausses couleurs 2,5 m.<\/p>\n

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Fig.05: Visualisation du volcan Osorno sur image satellitaire Alsat-2A<\/p>\n

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Fig.06a\u00a0: Vue en 3D du volcan Calbuco sur image satellitaire Alsat-2A<\/p>\n

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Fig.06b\u00a0: Vue en 3D du volcan Calbuco sur image satellitaire Alsat-2A<\/p>\n

<\/p>\n

Fig.06c\u00a0: Vue en 3D du volcan Calbuco sur image satellitaire Alsat-2A<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Le Calbuco est un volcan chilien situ\u00e9 \u00e0 1070 km au Sud de la capitale Santiago. Il s\u2019\u00e9l\u00e8ve au Sud-Est du Lac Llanquihue, \u00e0 25 km au Nord-Est de la ville de Puerto Montt et \u00e0 15 km au Sud-Ouest du site touristique La Ensenada. Culminant \u00e0 2003 m d\u2019altitude, ce volcan est entr\u00e9 soudainement […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[3],"tags":[],"class_list":["post-522","post","type-post","status-publish","format-standard","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=522"}],"version-history":[{"count":0,"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/522\/revisions"}],"wp:attachment":[{"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}