{"id":28787,"date":"2014-07-08T16:57:31","date_gmt":"2014-07-08T14:57:31","guid":{"rendered":"http:\/\/www.floracantabrica.com\/?p=28787"},"modified":"2014-07-08T16:57:31","modified_gmt":"2014-07-08T14:57:31","slug":"deshielo-inminente-misterioso-fenomeno-de-la-nieve-oscura-amenaza-los-glaciares-del-mundo-imminent-thaw-mysterious-phenomenon-of-the-dark-snow-threatens-the-glaciers-of-the-world","status":"publish","type":"post","link":"http:\/\/www.floracantabrica.com\/?p=28787","title":{"rendered":"Deshielo inminente: misterioso fen\u00f3meno de la ‘nieve oscura’ amenaza los glaciares del mundo.Imminent thaw: mysterious phenomenon of the ‘dark snow’ threatens the glaciers of the world"},"content":{"rendered":"

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Deshielo inminente: misterioso fen\u00f3meno de la ‘nieve oscura’ amenaza los glaciares del mundo<\/strong><\/span><\/p>\n

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Imminent thaw: mysterious phenomenon of the <\/strong>‘dark<\/strong> snow’ threatens the glaciers of the world<\/strong><\/span><\/p>\n

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E<\/span>tnopaisaje.com + dibujos<\/span><\/strong><\/span><\/p>\n

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Ge\u00f3logos estadounidenses han revelado que el fen\u00f3meno de la ‘nieve oscura’ o albedo, que reduce la capacidad del hielo de reflejar la luz solar, aceler\u00f3 el deshielo de los glaciares en un 20% en un solo mes.<\/span><\/p>\n

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Los cient\u00edficos alertan que la ‘nieve oscura’ se extiende desde el Himalaya hasta el\u00a0\u00c1rtico<\/a> por el aumento de las cantidades de polvo que\u00a0provienen del suelo desnudo, el holl\u00edn de los incendios y las part\u00edculas ultrafinas de carbono negro y de diesel de los motores industriales<\/strong> que se depositan a veces a miles de kil\u00f3metros de distancia del lugar de su liberaci\u00f3n.<\/span><\/p>\n

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\nSeg\u00fan un estudio publicado en la revista ‘Nature Geoscience<\/a>‘, el fen\u00f3meno del albedo (el porcentaje de radiaci\u00f3n que cualquier superficie refleja respecto a la radiaci\u00f3n que incide sobre la misma) causa una atenuaci\u00f3n significativa de la luminosidad de la nieve y las capas de hielo del mundo, que absorbe m\u00e1s calor solar acelerando as\u00ed el deshielo<\/strong><\/span><\/p>\n

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Un equipo de meteor\u00f3logos del Gobierno franc\u00e9s por su parte ha informado de que la capa de hielo del \u00c1rtico, que se cree que ha perdido un promedio de 12.900 millones de toneladas de hielo entre los a\u00f1os 1992 y 2010 debido al\u00a0calentamiento global<\/a>, puede perder un\u00a0extra de 27.000 millones de toneladas al a\u00f1o solo por el polvo, lo<\/strong> que podr\u00eda aumentar el nivel del mar en varios cent\u00edmetros para el a\u00f1o 2100.<\/span><\/p>\n

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\nLas mediciones satelitales, seg\u00fan los autores, muestran que en los \u00faltimos 10 a\u00f1os la superficie del manto de hielo de Groenlandia se ha oscurecido considerablemente durante la temporada de deshielo, que ahora en algunas zonas dura entre seis y once d\u00edas m\u00e1s que hace 40 a\u00f1os. Los cient\u00edficos sugieren que el retroceso de los glaciares, por su parte, descubre mayores \u00e1reas de suelo desnudo, lo que aumenta la erosi\u00f3n, convirtiendo el proceso de deshielo en un c\u00edrculo vicioso.<\/span><\/p>\n

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Imminent thaw: mysterious phenomenon of the <\/strong>‘dark<\/strong> snow’ threatens the glaciers of the world<\/strong><\/span><\/p>\n

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American geologists have revealed that the phenomenon of ‘dark snow’ or albedo, which reduces the capacity of the ice to reflect sunlight, accelerated the melting of glaciers by 20% in a single month.<\/span><\/p>\n

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Scientists warn that ‘dark snow’ stretches from the Himalayas to the Arctic by increasing the amounts of dust coming from the bare soil, soot from fires and ultrafine particles of carbon black and diesel industrial engines that are sometimes deposited thousands of miles away from the place of his release.<\/span><\/p>\n

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According to a study published in the journal ‘Nature Geoscience’, the phenomenon of the albedo (the percentage of radiation that any surface reflects about the radiation that it affects the same) causes a significant attenuation of the brightness of the snow and ice sheets in the world, which absorbs more solar to accelerate heat thus the thaw<\/span><\/p>\n

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A team of meteorologists from the French Government for its part reported that ice cover of the Arctic, which is believed that it has lost an average of 12.9 billion tons of ice between 1992 and 2010 due to global warming, could lose an extra 27,000 million tons a year only by dust, which could increase the sea level in several inches by the year 2100.<\/span><\/p>\n

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Satellite measurements, the authors show that in the last 10 years of the Greenland ice sheet surface has darkened considerably during the season of melting, which in some areas now lasts between six and eleven days more than 40 years ago. The scientists suggest that the retreat of glaciers, on the other hand, see major areas of bare soil, which increases erosion, becoming a vicious cycle the defrosting process<\/span><\/p>\n

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Tweet,,,,,,,,,,,,,,,, Deshielo inminente: misterioso fen\u00f3meno de la ‘nieve oscura’ amenaza los glaciares del mundo ,…………….. …………. Imminent thaw: mysterious phenomenon of the ‘dark snow’ threatens the glaciers of the world ………… …….. RT Actualidad \/ Ciencia …. . Etnopaisaje.com + dibujos … … @lorencincoreses … …… Ge\u00f3logos estadounidenses han revelado que el fen\u00f3meno de la […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28787","post","type-post","status-publish","format-standard","hentry","category-flora"],"_links":{"self":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/28787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28787"}],"version-history":[{"count":3,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/28787\/revisions"}],"predecessor-version":[{"id":28791,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/28787\/revisions\/28791"}],"wp:attachment":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28787"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}