Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/3252 |
Resumo: | Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive t0 climatic variations. This work discusses glaciers retreat observed since 1950s in lhe Antarctic Specially Managed area(ASMA) of Admiralty Bay in King George Island. From 1956 to 1979 this area lost 4.3 km2(2%) of its ico cover. Further 4.9 km2 were lost in the period 1979-1988; 6.2 km2 from 1988 to 1995 and finally 7.1 km2 from 1995 to 2000. Totally 22.5 km2 disappeared (10% of the original ice cover. i.e. in 1956). The ice retreat magnitude in this period cannot be attributed co in-buill variulions of Ihe glacier system. Further, it is associated to similar glaciers retructions and ice shelves collapses in the northern most part of the Antarctic Peninsula. Probably this general ice retreat results from or is enhanced by the atmospheric warming recorded for the region since 1940s. |
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Arigony Neto, JorgeSimões, Jefferson CardiaBremer, Ulisses FranzAquino, Francisco Eliseu2013-04-18T21:46:02Z2013-04-18T21:46:02Z2001ARIGONY NETO, Jorge et al. Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos. Pesquisas em Geociências, Porto Alegre, v. 28, n.2, p. 337-342, 2001. Disponível em: <http://seer.ufrgs.br/PesquisasemGeociencias/article/view/20307/pdf>. Acesso em: 07 de abr. 2013.1518-2398http://repositorio.furg.br/handle/1/3252Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive t0 climatic variations. This work discusses glaciers retreat observed since 1950s in lhe Antarctic Specially Managed area(ASMA) of Admiralty Bay in King George Island. From 1956 to 1979 this area lost 4.3 km2(2%) of its ico cover. Further 4.9 km2 were lost in the period 1979-1988; 6.2 km2 from 1988 to 1995 and finally 7.1 km2 from 1995 to 2000. Totally 22.5 km2 disappeared (10% of the original ice cover. i.e. in 1956). The ice retreat magnitude in this period cannot be attributed co in-buill variulions of Ihe glacier system. Further, it is associated to similar glaciers retructions and ice shelves collapses in the northern most part of the Antarctic Peninsula. Probably this general ice retreat results from or is enhanced by the atmospheric warming recorded for the region since 1940s.porGlacier retreatKing George islandAntarcticaDetecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALDetecção de Mudanças Ambientais na Antártica através de Dados de Sensoriamento Remoto e Mapas Históricos.pdfDetecção de Mudanças Ambientais na Antártica através de Dados de Sensoriamento Remoto e Mapas Históricos.pdfapplication/pdf2003321https://repositorio.furg.br/bitstream/1/3252/1/Detec%c3%a7%c3%a3o%20de%20Mudan%c3%a7as%20Ambientais%20na%20Ant%c3%a1rtica%20atrav%c3%a9s%20de%20Dados%20de%20Sensoriamento%20Remoto%20e%20Mapas%20Hist%c3%b3ricos.pdf0abdceeb155d957302a6b4f87b53c092MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/3252/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/32522013-04-18 18:46:02.983open accessoai:repositorio.furg.br:1/3252w4kgbmVjZXNzw6FyaW8gY29uY29yZGFyIGNvbSBhIGxpY2Vuw6dhIGRlIGRpc3RyaWJ1acOnw6NvIG7Do28tZXhjbHVzaXZhLAphbnRlcyBxdWUgbyBkb2N1bWVudG8gcG9zc2EgYXBhcmVjZXIgbm8gUmVwb3NpdMOzcmlvLiBQb3IgZmF2b3IsIGxlaWEgYQpsaWNlbsOnYSBhdGVudGFtZW50ZS4gQ2FzbyBuZWNlc3NpdGUgZGUgYWxndW0gZXNjbGFyZWNpbWVudG8gZW50cmUgZW0KY29udGF0byBhdHJhdsOpcyBkZTogcmVwb3NpdG9yaW9AZnVyZy5iciBvdSAweHggNTMgMzIzMy02NzA2LgoKTElDRU7Dh0EgREUgRElTVFJJQlVJw4fDg08gTsODTy1FWENMVVNJVkEKCkFvIGFzc2luYXIgZSBlbnRyZWdhciBlc3RhIGxpY2Vuw6dhLCBvL2EgU3IuL1NyYS4gKGF1dG9yIG91IGRldGVudG9yIGRvcyBkaXJlaXRvcyBkZSBhdXRvcik6CgphKSBDb25jZWRlIMOgIFVuaXZlcnNpZGFkZSBGZWRlcmFsIGRlIFJpbyBHcmFuZGUgLSAgRlVSRyBvIGRpcmVpdG8gbsOjby1leGNsdXNpdm8gZGUgcmVwcm9kdXppciwgY29udmVydGVyIChjb21vIGRlZmluaWRvIGFiYWl4byksIGNvbXVuaWNhciBlL291IGRpc3RyaWJ1aXIgbyBkb2N1bWVudG8gZW50cmVndWUgKGluY2x1aW5kbyBvIHJlc3Vtby9hYnN0cmFjdCkgZW0KZm9ybWF0byBkaWdpdGFsIG91IGltcHJlc3NvIGUgZW0gcXVhbHF1ZXIgbWVpby4KCmIpIERlY2xhcmEgcXVlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIMOpIHNldSB0cmFiYWxobyBvcmlnaW5hbCwgZSBxdWUKZGV0w6ltIG8gZGlyZWl0byBkZSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcyBuZXN0YSBsaWNlbsOnYS4gRGVjbGFyYSB0YW1iw6ltIHF1ZSBhIGVudHJlZ2EgZG8gZG9jdW1lbnRvIG7Do28gaW5mcmluZ2UsIHRhbnRvIHF1YW50byBsaGUgw6kgcG9zc8OtdmVsIHNhYmVyLCBvcyBkaXJlaXRvcyBkZSBxdWFscXVlciBvdXRyYSBwZXNzb2Egb3UgZW50aWRhZGUuCgpjKSBTZSBvIGRvY3VtZW50byBlbnRyZWd1ZSBjb250w6ltIG1hdGVyaWFsIGRvIHF1YWwgbsOjbyBkZXTDqW0gb3MKZGlyZWl0b3MgZGUgYXV0b3IsIGRlY2xhcmEgcXVlIG9idGV2ZSBhdXRvcml6YcOnw6NvIGRvIGRldGVudG9yIGRvcwpkaXJlaXRvcyBkZSBhdXRvciBwYXJhIGNvbmNlZGVyIMOgIEZVUkcgb3MgZGlyZWl0b3MgcmVxdWVyaWRvcyBwb3IgZXN0YSBsaWNlbsOnYSwgZSBxdWUgZXNzZSBtYXRlcmlhbCBjdWpvcyBkaXJlaXRvcyBzw6NvIGRlIHRlcmNlaXJvcyBlc3TDoSBjbGFyYW1lbnRlIGlkZW50aWZpY2FkbyBlIHJlY29uaGVjaWRvIG5vIHRleHRvIG91IGNvbnRlw7pkbyBkbyBkb2N1bWVudG8gZW50cmVndWUuCgpTZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDDqSBiYXNlYWRvIGVtIHRyYWJhbGhvIGZpbmFuY2lhZG8gb3UgYXBvaWFkbwpwb3Igb3V0cmEgaW5zdGl0dWnDp8OjbyBxdWUgbsOjbyBhIEZVUkcsIGRlY2xhcmEgcXVlIGN1bXByaXUgcXVhaXNxdWVyIG9icmlnYcOnw7VlcyBleGlnaWRhcyBwZWxvIHJlc3BlY3Rpdm8gY29udHJhdG8gb3UgYWNvcmRvLgoKQSBGVVJHIGlkZW50aWZpY2Fyw6EgY2xhcmFtZW50ZSBvKHMpIHNldSAocykgbm9tZSAocykgY29tbyBvIChzKSBhdXRvciAoZXMpIG91IGRldGVudG9yIChlcykgZG9zIGRpcmVpdG9zIGRvIGRvY3VtZW50byBlbnRyZWd1ZSwgZSBuw6NvIGZhcsOhIHF1YWxxdWVyIGFsdGVyYcOnw6NvLCBwYXJhIGFsw6ltIGRhcyBwZXJtaXRpZGFzIHBvciBlc3RhIGxpY2Vuw6dhLgo=Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2013-04-18T21:46:02Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
title |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
spellingShingle |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos Arigony Neto, Jorge Glacier retreat King George island Antarctica |
title_short |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
title_full |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
title_fullStr |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
title_full_unstemmed |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
title_sort |
Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos |
author |
Arigony Neto, Jorge |
author_facet |
Arigony Neto, Jorge Simões, Jefferson Cardia Bremer, Ulisses Franz Aquino, Francisco Eliseu |
author_role |
author |
author2 |
Simões, Jefferson Cardia Bremer, Ulisses Franz Aquino, Francisco Eliseu |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Arigony Neto, Jorge Simões, Jefferson Cardia Bremer, Ulisses Franz Aquino, Francisco Eliseu |
dc.subject.por.fl_str_mv |
Glacier retreat King George island Antarctica |
topic |
Glacier retreat King George island Antarctica |
description |
Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive t0 climatic variations. This work discusses glaciers retreat observed since 1950s in lhe Antarctic Specially Managed area(ASMA) of Admiralty Bay in King George Island. From 1956 to 1979 this area lost 4.3 km2(2%) of its ico cover. Further 4.9 km2 were lost in the period 1979-1988; 6.2 km2 from 1988 to 1995 and finally 7.1 km2 from 1995 to 2000. Totally 22.5 km2 disappeared (10% of the original ice cover. i.e. in 1956). The ice retreat magnitude in this period cannot be attributed co in-buill variulions of Ihe glacier system. Further, it is associated to similar glaciers retructions and ice shelves collapses in the northern most part of the Antarctic Peninsula. Probably this general ice retreat results from or is enhanced by the atmospheric warming recorded for the region since 1940s. |
publishDate |
2001 |
dc.date.issued.fl_str_mv |
2001 |
dc.date.accessioned.fl_str_mv |
2013-04-18T21:46:02Z |
dc.date.available.fl_str_mv |
2013-04-18T21:46:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
ARIGONY NETO, Jorge et al. Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos. Pesquisas em Geociências, Porto Alegre, v. 28, n.2, p. 337-342, 2001. Disponível em: <http://seer.ufrgs.br/PesquisasemGeociencias/article/view/20307/pdf>. Acesso em: 07 de abr. 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/3252 |
dc.identifier.issn.none.fl_str_mv |
1518-2398 |
identifier_str_mv |
ARIGONY NETO, Jorge et al. Detecção de mudanças ambientais na Antártica através de dados de sensoriamento remoto e mapas históricos. Pesquisas em Geociências, Porto Alegre, v. 28, n.2, p. 337-342, 2001. Disponível em: <http://seer.ufrgs.br/PesquisasemGeociencias/article/view/20307/pdf>. Acesso em: 07 de abr. 2013. 1518-2398 |
url |
http://repositorio.furg.br/handle/1/3252 |
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por |
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openAccess |
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