{"id":524,"date":"2015-05-07T11:38:54","date_gmt":"2015-05-07T10:38:54","guid":{"rendered":"https:\/\/asal.dz\/?p=524"},"modified":"2018-12-23T14:09:19","modified_gmt":"2018-12-23T13:09:19","slug":"visualisation-de-la-region-dain-sefra-wilaya-de-naama-a-partir-de-limagerie-satellitaire-alsat-2a","status":"publish","type":"post","link":"https:\/\/asal.dz\/?p=524","title":{"rendered":"Visualisation de la r\u00e9gion d\u2019Ain Sefra \u2013 Wilaya de Naama, \u00e0 partir de l\u2019imagerie satellitaire Alsat-2A."},"content":{"rendered":"<p class=\"Style94\" align=\"justify\">Ain S\u00e9fra est une ville de la wilaya de Na\u00e2ma, situ\u00e9e \u00e0 65 kms au Sud-Ouest du Chef-Lieu de la Wilaya, sur la Nationale 4. Elle est localis\u00e9e dans les monts des Ksours de l\u2019Atlas Saharien, \u00e0 1000 m d\u2019altitude.<\/p>\n<p class=\"Style94\" align=\"justify\">La ville d\u2019Ain Sefra est domin\u00e9e par un cordon dunaire de 12 kms de long, s\u2019\u00e9tendant du Nord-Est au Sud-Ouest, et de 1,5 km de large.<\/p>\n<p class=\"Style94\" align=\"justify\">La r\u00e9gion est caract\u00e9ris\u00e9e par un bioclimat aride avec des formations steppiques \u00e0 base d\u2019alfa (<em><u>Stipa tenacissima<\/u><\/em>) au pi\u00e9mont nord et des zones de parcours, et \u00e0 Remt (<em><u>Arthrophytum scoparium<\/u><\/em>) au sud de l\u2019Atlas Saharien.<\/p>\n<p class=\"Style94\" align=\"justify\">Le Djebel A\u00efssa, culminant \u00e0 2236 m et d&rsquo;une superficie de 22400 ha, est consid\u00e9r\u00e9 comme un site potentiel en mati\u00e8re de pr\u00e9servation de la faune et la flore.<\/p>\n<p class=\"Style94\" align=\"justify\">Les Ksours sont les t\u00e9moignages de l\u2019hospitalit\u00e9 de la population locale, rappelant la glorieuse histoire de la r\u00e9gion avec le Ksar de Moghrar qui abrite la citadelle de Cheikh Bou\u00e2mama, ainsi que les Ksours de Sfissifa, de Tiout et d\u2019Asla.<\/p>\n<p class=\"Style94\" align=\"justify\">Toute la r\u00e9gion est caract\u00e9ris\u00e9e par la pr\u00e9sence de gravures rupestres d\u2019\u00e2ge n\u00e9olithique (Moghrar, Tiout, Asla), d\u2019o\u00f9 son classement en 2003 comme Parc National.<\/p>\n<p class=\"Style94\" align=\"justify\">L\u2019image Alsat-2A montre les divers paysages qui ornent la r\u00e9gion d\u2019Ain Sefra.<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra1.jpg\" width=\"595\" height=\"896\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.01\u00a0: Localisation de la bande Alsat-2A de la r\u00e9gion d\u2019Ain Sefra sur fond topographique au 1\/200 000<\/strong><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra2.jpg\" width=\"415\" height=\"668\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\">Fig.02\u00a0: Visualisation de la r\u00e9gion d\u2019Ain Sefra (Naama) sur image satellitaires Alsat-2A<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra3.jpg\" width=\"680\" height=\"438\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.03a: Visualisation du zoom 01 sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra4.jpg\" width=\"680\" height=\"441\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\">Fig.03b\u00a0: Visualisation du zoom 02 sur image satellitaires Alsat-2A<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra5.jpg\" width=\"680\" height=\"441\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\">Fig.03c\u00a0: Visualisation du zoom 03 sur image satellitaires Alsat-2A<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra6.jpg\" width=\"680\" height=\"436\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\">Fig.03d\u00a0: Visualisation du zoom 04 sur image satellitaires Alsat-2A<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra7.jpg\" width=\"680\" height=\"441\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.03e\u00a0: Visualisation du zoom 05 sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra8.jpg\" width=\"680\" height=\"439\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.04a\u00a0: Vue en 3D du versant Nord de Djebel Aissa (Naama) sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra9.jpg\" width=\"680\" height=\"419\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.04b\u00a0: Vue en 3D du versant Sud de Djebel Aissa (Naama) sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra10.jpg\" width=\"680\" height=\"435\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.04c\u00a0: Vue en 3D de la r\u00e9gion d\u2019Ain Sefra (Naama) sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra11.jpg\" width=\"680\" height=\"375\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.04d\u00a0: Vue en 3D de la r\u00e9gion d\u2019Ain Sefra &#8211; Moghrar (Naama) sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra12.jpg\" width=\"680\" height=\"367\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.04e\u00a0: Vue en 3D de la r\u00e9gion d\u2019Ain Sefra (Naama) sur image satellitaires Alsat-2A<\/strong><\/p>\n<p class=\"Style113\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/safra13.jpg\" width=\"680\" height=\"397\" border=\"1\" \/><\/p>\n<p class=\"Style113\" align=\"center\"><strong>Fig.05\u00a0: Caract\u00e9risation des parcelles agricoles sur image Alsat-2A<br \/>\nmode fausses couleurs 2,5 m.<\/strong><\/p>\n<p class=\"Style113\" align=\"justify\"><strong>L\u2019extrait d\u2019image Alsat-2A en mode fausses couleurs 2,5 m, met bien en \u00e9vidence les limites des diff\u00e9rentes unit\u00e9s d\u2019occupation du sol\u00a0: rouge vif pour les terrains agricoles, jaune ocre pour les formations sableuses, gris pour les agglom\u00e9rations urbaines.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ain S\u00e9fra est une ville de la wilaya de Na\u00e2ma, situ\u00e9e \u00e0 65 kms au Sud-Ouest du Chef-Lieu de la Wilaya, sur la Nationale 4. Elle est localis\u00e9e dans les monts des Ksours de l\u2019Atlas Saharien, \u00e0 1000 m d\u2019altitude. La ville d\u2019Ain Sefra est domin\u00e9e par un cordon dunaire de 12 kms de long, [&hellip;]<\/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-524","post","type-post","status-publish","format-standard","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/524","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=524"}],"version-history":[{"count":0,"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions"}],"wp:attachment":[{"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}