{"id":453,"date":"2017-05-04T09:57:00","date_gmt":"2017-05-04T07:57:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_satellites_track_antarctic_ice\/"},"modified":"2026-10-08T00:28:23","modified_gmt":"2026-10-07T22:28:23","slug":"esa_satellites_track_antarctic_ice","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/pt\/esa_satellites_track_antarctic_ice\/","title":{"rendered":"Os sat\u00e9lites da ESA monitorizam o gelo da Ant\u00e1rtida"},"content":{"rendered":"<div class=\"lede\">\n<p>Os cientistas t\u00eam vindo a utilizar sat\u00e9lites em \u00f3rbita \u00e0 volta da Terra para monitorizar um grupo de 30 glaciares congelados na Ant\u00e1rtida. Fizeram uma descoberta preocupante: os glaciares est\u00e3o a perder cada vez mais gelo a cada ano que passa. Isto \u00e9 preocupante porque \u00e9 um sinal de que o nosso planeta est\u00e1 a aquecer devido \u00e0s altera\u00e7\u00f5es clim\u00e1ticas.<\/p>\n<\/div>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"A. Hogg\/CPOM\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Part_of_the_Western_Palmer_Land_glaciers\" 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\/05\/part_of_the_western_palmer_land_glaciers\/17897311-2-eng-GB\/Part_of_the_Western_Palmer_Land_glaciers.jpg\" alt=\"Part of the Western Palmer Land glaciers\"><figcaption>Parte das geleiras de Western Palmer Land<\/figcaption><\/figure>\n<p>As 30 geleiras estudadas fazem parte de uma \u00e1rea denominada Western Palmer Land. Na verdade, a maior parte do gelo aqui encontra-se abaixo do n\u00edvel do mar e, se derreter, enormes peda\u00e7os de gelo que se encontram acima poder\u00e3o desprenderse e flutuar para longe. Se forem levados para mares ainda mais quentes, poder\u00e3o derreter completamente!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA-Pierre Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/ESA_satellites_help_us_to_monitor_our_ever-changing_planet\" 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\/05\/esa_satellites_help_us_to_monitor_our_ever-changing_planet\/17905497-2-eng-GB\/ESA_satellites_help_us_to_monitor_our_ever-changing_planet.jpg\" alt=\"ESA satellites help us to monitor our ever-changing planet\"><figcaption>Os sat\u00e9lites da ESA ajudam-nos a monitorizar o nosso planeta em constante mudan\u00e7a<\/figcaption><\/figure>\n<p>Os sat\u00e9lites t\u00eam vindo a monitorizar os glaciares em torno da Ant\u00e1rtida h\u00e1 mais de 20 anos. Os sat\u00e9lites da ESA, como o Envisat e o Sentinel-1, t\u00eam contribu\u00eddo para isso. As nuvens podem bloquear a vis\u00e3o dos sat\u00e9lites, mas os equipamentos de radar permitem-lhes ver atrav\u00e9s das nuvens para observar as geleiras que se encontram por baixo. Apesar disso, h\u00e1 momentos e locais em que os cientistas n\u00e3o dispunham de dados de sat\u00e9lite. Para colmatar estas lacunas, utilizaram uma simula\u00e7\u00e3o computacional avan\u00e7ada para prever o que estava a acontecer \u00e0s geleiras.<\/p>\n<p>Os sat\u00e9lites da ESA continuar\u00e3o a observar as geleiras, tirando fotografias e recolhendo dados. Esta informa\u00e7\u00e3o \u00e9 inestim\u00e1vel para n\u00f3s aqui na Terra, pois precisamos de perceber como o nosso planeta est\u00e1 a mudar e o que podemos fazer a esse respeito!<\/p>\n<p><b>Curiosidade:<\/b> 10% da superf\u00edcie terrestre est\u00e1 coberta por glaciares!<\/p>","protected":false},"excerpt":{"rendered":"<p>Scientists have been using satellites in orbit around Earth to monitor a group of 30 frozen glaciers in Antarctica. They have made a troubling discovery: the glaciers are losing more [&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\/05\/glaciers_are_huge_pieces_of_ice_that_can_float_across_the_sea\/17896016-2-eng-GB\/Glaciers_are_huge_pieces_of_ice_that_can_float_across_the_sea.jpg","esa_banner_description":"Glaciers are huge pieces of ice that can float across the sea","esa_banner_credit":"B. Jourdain","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Glaciers_are_huge_pieces_of_ice_that_can_float_across_the_sea","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":[64,42,10],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-453","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/comments?post=453"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/453\/revisions"}],"predecessor-version":[{"id":4489,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/453\/revisions\/4489"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/media?parent=453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/categories?post=453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/tags?post=453"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/panel?post=453"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/language?post=453"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/age?post=453"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/duration?post=453"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/resource_type?post=453"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/audience?post=453"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/wf_post_folders?post=453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}