{"id":1686,"date":"2012-08-27T18:34:21","date_gmt":"2012-08-27T16:34:21","guid":{"rendered":"http:\/\/blogs.funiber.org\/pt\/?p=1686"},"modified":"2012-08-29T20:11:45","modified_gmt":"2012-08-29T18:11:45","slug":"degelo-incomum-na-groenlandia","status":"publish","type":"post","link":"https:\/\/www.funiber.blog\/pt\/meio-ambiente\/2012\/08\/27\/degelo-incomum-na-groenlandia","title":{"rendered":"Degelo incomum na Groenl\u00e2ndia"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.funiber.org\/meio-ambiente\/files\/2012\/08\/derretimento_geleiras.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-1483\" src=\"http:\/\/blogs.funiber.org\/meio-ambiente\/files\/2012\/08\/derretimento_geleiras-222x300.jpg\" alt=\"\" width=\"222\" height=\"300\" \/><\/a>Pode tratar-se de um fen\u00f4meno produzido a cada 150 anos, mas, para confirmar, os cientistas esperar\u00e3o mais alguns anos. A cada ver\u00e3o boreal, a superf\u00edcie de gelo que cobre a Groenl\u00e2ndia \u00e9 reduzida em 40%, mas este ano a Ag\u00eancia Espacial Americana (Nasa) reportou que 97% da neve que cobre essa regi\u00e3o foi afetada em meados de julho. O degelo tamb\u00e9m foi observado nas regi\u00f5es mais altas da Groenl\u00e2ndia, como o topo a 3.200 metros. A Nasa indica que, por v\u00e1rios dias, a camada superficial de gelo da Groenl\u00e2ndia se derreteu de tal forma que, em 30 anos de observa\u00e7\u00f5es na regi\u00e3o, nunca se viu nada similar. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<!--more--><\/p>\n<p>Antonio Ruiz, professor de F\u00edsica Aplicada da Universidade de Alcal\u00e1 de Henares, indicou, em seu blog, que o maior problema n\u00e3o \u00e9 o degelo das camadas superficiais: o risco \u00e9 que a neve derretida criaria quedas de \u00e1gua que, depois de atravessar o gelo da geleira, formaria uma camada de \u00e1gua que criaria um \u201csistema de deslizamento\u201d que poderia acelerar a queda de todas as geleiras da Groenl\u00e2ndia no mar, antes de 2050.<\/p>\n<p>De acordo com a Nasa, o processo de fus\u00e3o foi bastante r\u00e1pido. As imagens dos sat\u00e9lites mostravam que, no dia 8 de julho, 40% da camada superficial de gelo derreteu na Groenl\u00e2ndia e, no dia12 de julho, apenas quatro dias depois, 97% da neve derreteu. Os registros foram t\u00e3o dram\u00e1ticos que os cientistas, ao observar os dados, pensaram que tinham se enganado.<\/p>\n<p>No momento, os especialistas n\u00e3o chegaram a um acordo que indique se este fen\u00f4meno \u00e9 um processo natural c\u00edclico ou se \u00e9 um efeito do aquecimento global.<\/p>\n<p>Cientistas que analisam as mudan\u00e7as clim\u00e1ticas da regi\u00e3o indicam que foram registrados dias muito quentes na regi\u00e3o e isso poderia ter causado o degelo nessa \u00e1rea. Al\u00e9m disso, \u00e9 preciso salientar que, recentemente, se desprendeu da geleira Petermann, na Groenl\u00e2ndia, um gigantesco iceberg com o dobro do tamanho da ilha de Manhattan.<\/p>\n<p>Fontes:<\/p>\n<p>http:\/\/www.nasa.gov\/topics\/earth\/features\/greenland-melt.hTML<\/p>\n<p><a href=\"http:\/\/www.elmundo.es\/blogs\/elmundo\/clima\/2012\/07\/26\/deshielo-em-groenlandia.hTML\">http:\/\/www.elmundo.es\/blogs\/elmundo\/clima\/2012\/07\/26\/deshielo-em-groenlandia.hTML<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pode tratar-se de um fen\u00f4meno produzido a cada 150 anos, mas, para confirmar, os cientistas esperar\u00e3o mais alguns anos. A cada ver\u00e3o boreal, a superf\u00edcie de gelo que cobre a Groenl\u00e2ndia \u00e9 reduzida em 40%, mas este ano a Ag\u00eancia Espacial Americana (Nasa) reportou que 97% da neve que cobre essa regi\u00e3o foi afetada em [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[2],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Degelo incomum na Groenl\u00e2ndia - FuniBlogs - FUNIBER<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.funiber.org\/pt\/meio-ambiente\/2012\/08\/27\/degelo-incomum-na-groenlandia\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Degelo incomum na Groenl\u00e2ndia - FuniBlogs - FUNIBER\" \/>\n<meta property=\"og:description\" content=\"Pode tratar-se de um fen\u00f4meno produzido a cada 150 anos, mas, para confirmar, os cientistas esperar\u00e3o mais alguns anos. 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