{"id":454,"date":"2013-08-21T07:50:00","date_gmt":"2013-08-21T05:50:00","guid":{"rendered":"https:\/\/kids.esa.int\/europe_s_space_sentinels\/"},"modified":"2026-10-08T00:28:23","modified_gmt":"2026-10-07T22:28:23","slug":"europe_s_space_sentinels","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/pt\/europe_s_space_sentinels\/","title":{"rendered":"Os \u00abSentinels\u00bb espaciais da Europa"},"content":{"rendered":"<div class=\"lede\">\n<p>Com base em mais de 30 anos de experi\u00eancia na opera\u00e7\u00e3o de sat\u00e9lites de observa\u00e7\u00e3o da Terra, a ESA est\u00e1 a desenvolver cinco novos tipos de naves espaciais, conhecidos como Sentinels. Cada miss\u00e3o Sentinel \u00e9 composta por sat\u00e9lites g\u00e9meos, para garantir a m\u00e1xima cobertura da Terra.<\/p>\n<\/div>\n<p>Estes \u00abolhos no c\u00e9u\u00bb ir\u00e3o enviar enormes quantidades de dados sobre a superf\u00edcie e a atmosfera da Terra. Esta informa\u00e7\u00e3o ser\u00e1 utilizada para satisfazer as necessidades operacionais do programa Copernicus.<\/p>\n<p>O Sentinel-1 \u00e9 uma miss\u00e3o de imagem por radar que funciona em todas as condi\u00e7\u00f5es meteorol\u00f3gicas, tanto de dia como de noite. As suas diversas tarefas incluir\u00e3o a monitoriza\u00e7\u00e3o do gelo marinho do \u00c1rtico, a dete\u00e7\u00e3o de polui\u00e7\u00e3o marinha (como derrames de petr\u00f3leo), o mapeamento de movimentos do solo, o estudo das florestas, da \u00e1gua e do solo, e o apoio a opera\u00e7\u00f5es de socorro em caso de cat\u00e1strofes. O sat\u00e9lite Sentinel-1A, em \u00f3rbita polar, foi lan\u00e7ado a 3 de abril de 2014. O seu g\u00e9meo, o Sentinel-1B, foi lan\u00e7ado dois anos mais tarde, a 25 de abril de 2016.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Astrium GmbH\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/02\/Sentinel-22\" 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\/2012\/02\/sentinel-22\/17878552-2-eng-GB\/Sentinel-2.jpg\" alt=\"Sentinel-2\"><figcaption>Sentinel-2<\/figcaption><\/figure>\n<p>O Sentinel-2 \u00e9 outro par de sat\u00e9lites de \u00f3rbita polar. Estes sat\u00e9lites ir\u00e3o fornecer imagens \u00f3ticas detalhadas da vegeta\u00e7\u00e3o, do solo e da cobertura h\u00eddrica, bem como das zonas costeiras. O Sentinel-2A foi lan\u00e7ado a 23 de junho de 2015. O Sentinel-2B foi lan\u00e7ado a 7 de mar\u00e7o de 2017.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\u2013J. Huart\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/02\/Sentinel-32\" 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\/2012\/02\/sentinel-32\/17871448-2-eng-GB\/Sentinel-3.jpg\" alt=\"Sentinel-3\"><figcaption>Sentinel-3<\/figcaption><\/figure>\n<p>Os v\u00e1rios instrumentos do Sentinel-3 ir\u00e3o medir a altura da superf\u00edcie do mar, a temperatura da superf\u00edcie terrestre e mar\u00edtima e a cor do oceano (resultante da presen\u00e7a de min\u00fasculos organismos vivos). O Sentinel-3A foi lan\u00e7ado com sucesso a 16 de fevereiro de 2016, enquanto o lan\u00e7amento do Sentinel-3B est\u00e1 previsto para 2017.<\/p>\n<p>Tanto o Sentinel-4 como o Sentinel-5 ir\u00e3o monitorizar a qualidade do ar, a camada de ozono, a radia\u00e7\u00e3o solar e as altera\u00e7\u00f5es clim\u00e1ticas. O Sentinel-4 ser\u00e1 composto por v\u00e1rios instrumentos a bordo de dois sat\u00e9lites meteorol\u00f3gicos da terceira gera\u00e7\u00e3o do Meteosat, em \u00f3rbita acima do equador.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1280\" data-credit=\"ESA-P. Carril, 2012\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/11\/Sentinel-5_precursor2\" 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\/2012\/11\/sentinel-5_precursor2\/18245958-2-eng-GB\/Sentinel-5_precursor.jpg\" alt=\"Sentinel-5 precursor\"><figcaption>Sentinel-5 precursor<\/figcaption><\/figure>\n<p>Os instrumentos do Sentinel-5 ser\u00e3o transportados num sat\u00e9lite MetOp de segunda gera\u00e7\u00e3o (MSG) em \u00f3rbita polar, que voar\u00e1 a uma altitude muito inferior \u00e0 do Sentinel-4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Based on over 30 years of experience in flying Earth observation satellites, ESA is developing five new types of spacecraft, known as Sentinels. Each Sentinel mission is made up of [&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\/2007\/05\/sentinel-12\/17892760-2-eng-GB\/Sentinel-1.jpg","esa_banner_description":"Sentinel-1","esa_banner_credit":"ESA\/P. 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