{"id":22222350192,"date":"2024-11-07T14:44:00","date_gmt":"2024-11-07T17:44:00","guid":{"rendered":"https:\/\/www.ufrgs.br\/site\/noticias\/missao-inedita-liderada-pela-ufrgs-investigara-impactos-ambientais-na-antartica\/"},"modified":"2026-10-14T11:37:14","modified_gmt":"2026-10-14T14:37:14","slug":"missao-inedita-liderada-pela-ufrgs-investigara-impactos-ambientais-na-antartica","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/site\/noticias\/missao-inedita-liderada-pela-ufrgs-investigara-impactos-ambientais-na-antartica\/","title":{"rendered":"Miss\u00e3o in\u00e9dita liderada pela UFRGS investigar\u00e1 impactos ambientais na Ant\u00e1rtica"},"content":{"rendered":"
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Faltando poucos dias para a maior travessia ant\u00e1rtica liderada pelo Brasil, os 61 cientistas da <\/span>Expedi\u00e7\u00e3o Internacional de Circum-Navega\u00e7\u00e3o Costeira Ant\u00e1rtica<\/span><\/span><\/a> intensificam a prepara\u00e7\u00e3o para essa miss\u00e3o in\u00e9dita. Partindo do Porto de Rio Grande em 22 de novembro de 2024, a equipe navegar\u00e1 mais de 20 mil quil\u00f4metros pela costa ant\u00e1rtica com o objetivo de coletar dados sobre mudan\u00e7as clim\u00e1ticas e explorar \u00e1reas pr\u00f3ximas \u00e0s geleiras. Liderada pelo pesquisador e explorador polar <\/span>Jefferson Cardia Sim\u00f5es<\/span>, do<\/span> <\/span><\/span>Centro Polar e Clim\u00e1tico (CPC)<\/span><\/a> da Universidade Federal do Rio Grande do Sul (UFRGS), a expedi\u00e7\u00e3o re\u00fane especialistas de sete pa\u00edses \u2014 Argentina, Brasil, Chile, China, \u00cdndia, Peru e R\u00fassia \u2014, que compartilhar\u00e3o tanto os desafios quanto o entusiasmo pela ci\u00eancia.<\/span> <\/span><\/p>\n<\/div>\n

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Para muitos dos cientistas, a expedi\u00e7\u00e3o representa uma oportunidade \u00fanica de estudar o ambiente ant\u00e1rtico de perto, apesar dos desafios que a jornada de dois meses imp\u00f5e. Enfrentar as adversidades de estar a bordo do navio quebra-gelo russo <\/span>Akademik<\/span> <\/span>Tryoshnikov<\/span> e as baixas temperaturas exige meses de prepara\u00e7\u00e3o, principalmente quanto ao planejamento detalhado do trabalho para garantir a excel\u00eancia na coleta de dados. \u201cEstamos focados em analisar a estabilidade do manto de gelo ant\u00e1rtico, al\u00e9m de coletar amostras de poluentes como os micropl\u00e1sticos, que refletem o impacto global, j\u00e1 que a Ant\u00e1rtica, com poucas fontes pr\u00f3prias de polui\u00e7\u00e3o, serve como n\u00edvel base da polui\u00e7\u00e3o atmosf\u00e9rica mundial\u201d, comenta Filipe Gaudie <\/span>Ley<\/span> <\/span>Lindau<\/span>, pesquisador do CPC, sobre suas expectativas em rela\u00e7\u00e3o \u00e0 miss\u00e3o.<\/span><\/span> <\/span><\/p>\n<\/div>\n

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O trajeto, que durar\u00e1 60 dias, ser\u00e1 em torno do continente gelado, contando com 16 pontos de parada para coleta de testemunhos de gelo. Durante a travessia, os cientistas enfrentar\u00e3o tempestades, temperaturas extremas e as dif\u00edceis condi\u00e7\u00f5es das \u00e1guas ant\u00e1rticas, desafiando n\u00e3o apenas a resist\u00eancia f\u00edsica, mas tamb\u00e9m o foco no trabalho de coleta e pesquisa. A bordo do <\/span>Akademik<\/span> <\/span>Tryoshnikov<\/span>, a equipe contar\u00e1 com laborat\u00f3rios de ponta e instrumenta\u00e7\u00e3o cient\u00edfica avan\u00e7ada para an\u00e1lises atmosf\u00e9ricas, biol\u00f3gicas e geof\u00edsicas, todos adaptados para operar em condi\u00e7\u00f5es polares.<\/span><\/span><\/p>\n

<\/img><\/span><\/span><\/p>\n

Na foto, navio Akademik Tryoshnikov, Instituto de Pesquisa Ant\u00e1rtico, S\u00e3o Petesburgo. Divulga\u00e7\u00e3o.<\/i><\/span><\/span><\/p>\n<\/div>\n

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Dessa vez, o grupo tamb\u00e9m estar\u00e1 equipado com a tecnologia avan\u00e7ada do<\/span> sat\u00e9lite <\/span>Starlink<\/span><\/span>, permitindo que os cientistas compartilhem informa\u00e7\u00f5es via texto, \u00e1udio e v\u00eddeo com acesso ilimitado \u00e0 internet durante todo o percurso ant\u00e1rtico. Esse recurso facilitar\u00e1 a comunica\u00e7\u00e3o e a transmiss\u00e3o de dados em tempo real.<\/span> <\/span><\/p>\n<\/div>\n

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Essa miss\u00e3o ambiciosa reflete o compromisso dos pesquisadores em estudar e enfrentar os impactos das mudan\u00e7as clim\u00e1ticas. Os dados obtidos permitir\u00e3o an\u00e1lises abrangentes sobre a sa\u00fade do ecossistema polar, desde o manto de gelo at\u00e9 a fauna marinha, revelando como as geleiras respondem ao aumento das temperaturas e \u00e0s altera\u00e7\u00f5es na circula\u00e7\u00e3o oce\u00e2nica e atmosf\u00e9rica.<\/span> <\/span>A expedi\u00e7\u00e3o consolida o Brasil como um dos principais l\u00edderes em pesquisa polar na Am\u00e9rica Latina e representa um marco para a ci\u00eancia brasileira e a atua\u00e7\u00e3o do pa\u00eds no continente ant\u00e1rtico.<\/span> <\/span><\/p>\n<\/div>\n

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Segundo Sim\u00f5es, <\/span>essa \u00e9 uma expedi\u00e7\u00e3o m<\/span><\/span>ultidisciplinar que coletar\u00e1 amostragem do ambiente <\/span>biol\u00f3gico<\/span> e f\u00edsico da Ant\u00e1rtica; entretanto, <\/span>o objetivo principal <\/span>\u00e9 estudar a <\/span>estabilidade<\/span> do manto de gelo no continente<\/span>. “Saber se a <\/span>posi\u00e7\u00e3o<\/span> de flutua\u00e7\u00e3o do manto de gelo da Ant\u00e1rtica<\/span> \u00e9 est\u00e1vel ou n\u00e3o \u00e9 uma das preocupa\u00e7\u00f5es cientificas atuais. Isso porque<\/span>, se n\u00e3o for est\u00e1vel e come\u00e7ar a recuar para dentro do continente, o gelo poder\u00e1 correr mais rapidamente para o oceano, fato que contribui para um aumento acelerado do n\u00edvel do mar, afetando todas as regi\u00f5es costeiras do planeta”, explic<\/span>a ele.<\/span><\/span> <\/span><\/p>\n<\/div>\n

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Francisco Eliseu Aquino, professor do Departamento de Geografia da UFRGS, coordenar\u00e1 as pesquisas do grupo de climatologistas durante a miss\u00e3o e enfatiza a relev\u00e2ncia da<\/span> circum-navega\u00e7\u00e3o ant\u00e1rtica completa, pois \u00e9 nas geleiras que est\u00e1 preservado o <\/span>arquivo natural da atmosfera da Terra, especificamente na A<\/span>nt\u00e1rtica<\/span> por ter 90% do gelo do planeta.<\/span> “E<\/span>la tem o melhor e <\/span>o <\/span>mais amplo sinal ambiental global da mudan\u00e7a do clima, da <\/span>acelera\u00e7\u00e3o<\/span> da atmosfera<\/span> e<\/span>, indiretamente<\/span>,<\/span> da <\/span>intensifica\u00e7\u00e3o<\/span> dos <\/span>ciclones.<\/span> E<\/span>nt\u00e3o<\/span>,<\/span> essa <\/span>expedi\u00e7\u00e3o<\/span> vai <\/span>permitir<\/span> coletar ao redor de toda a <\/span>A<\/span>nt\u00e1rtica<\/span> amostras para entender melhor a <\/span>circula\u00e7\u00e3o<\/span> atmosf\u00e9rica intensificada nos <\/span>\u00faltimos<\/span> anos mais quentes<\/span>“, salienta ele. O professor ressalta ainda que a navega\u00e7\u00e3o <\/span>a<\/span>bre <\/span>possibilidades<\/span> para entender o impacto da mudan\u00e7a do clima<\/span>: “P<\/span>oderemos pensar <\/span>a <\/span>\u00c1frica<\/span> <\/span>Meridional, a <\/span>Austr\u00e1lia<\/span>, a<\/span> <\/span>N<\/span>ova <\/span>Zel\u00e2ndia<\/span> e o Sul do Brasil como <\/span>regi\u00f5es<\/span> diretamente conectadas a eventos extremos como os vividos: estiagem, ondas de calor, <\/span>inunda\u00e7\u00f5es<\/span> e tempestades severas<\/span>“<\/span>.<\/span><\/span><\/p>\n

<\/img><\/span><\/span><\/p>\n<\/div>\n

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Rota da circum-navega\u00e7\u00e3o: equipe\u00a0percorrer\u00e1 mais de 20 mil km da costa do continente ant\u00e1rtico. Imagem: Divulga\u00e7\u00e3o.<\/em><\/p>\n

Para saber mais:<\/strong><\/span> <\/span><\/p>\n<\/div>\n

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A Universidade Federal do Rio Grande do Sul criou um <\/span>reposit\u00f3rio<\/span><\/span><\/a> exclusivo de produ\u00e7\u00f5es jornal\u00edsticas e materiais complementares sobre as expedi\u00e7\u00f5es ant\u00e1rticas j\u00e1 realizadas at\u00e9 agora. Voc\u00ea pode acessar o site <\/span>em <\/span><\/span>https:\/\/www.ufrgs.br\/expedicaoantartica\/<\/span><\/span><\/a>. <\/span> <\/span><\/p>\n<\/div>\n

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\u00a0<\/p>\n

Not\u00edcia relacionada<\/strong><\/span> <\/span><\/p>\n<\/div>\n

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<\/span>UFRGS lidera maior circum-navega\u00e7\u00e3o cient\u00edfica da Ant\u00e1rtica<\/span><\/span><\/a> <\/span> <\/span><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Professor Jefferson Sim\u00f5es coordena equipe de 61 cientistas de 7 pa\u00edses que embarcam em expedi\u00e7\u00e3o desafiadora dia 22 para estudar mudan\u00e7as clim\u00e1ticas no continente ant\u00e1rtico<\/p>\n","protected":false},"author":2,"featured_media":22222302924,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"ppma_author":[949],"class_list":["post-22222350192","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","yoast_head":"\nUFRGS - Miss\u00e3o in\u00e9dita liderada pela UFRGS investigar\u00e1 impactos ambientais na Ant\u00e1rtica<\/title>\n<meta name=\"description\" content=\"Professor Jefferson Sim\u00f5es coordena equipe de 61 cientistas de 7 pa\u00edses que embarcam em 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