Antartic environmental change detection using remote sensing data and historical maps
Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive to climatic variations. This work discusses glaciers retreat observed since 1950s in the Antarctic Specially Managed Area (ASMA) of Admiralty Bay i...
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Instituto de Geociências /Universidade Federal do Rio Grande do Sul
2001
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Online Access: | https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307 |
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ftunivfrgsojs:oai:seer.ufrgs.br:article/20307 2023-07-16T03:52:20+02:00 Antartic environmental change detection using remote sensing data and historical maps Detecção de Mudanças Ambientais na Antártica através de Dados de Sensoriamento Remoto e Mapas Históricos ARIGONY NETO, JORGE SIMÕES, JEFERSON CARDIA BREMER, ULISSES FRANZ AQUINO, FRANCISCO ELISEU 2001-12-31 application/pdf https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307 por por Instituto de Geociências /Universidade Federal do Rio Grande do Sul https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307/pdf https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307 Pesquisas em Geociências; v. 28 n. 2 (2001): Pesquisas em Geociências; 337-342 1807-9806 1518-2398 glacier retreat King George Island Antartica Geociências info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2001 ftunivfrgsojs 2023-06-25T21:31:55Z Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive to climatic variations. This work discusses glaciers retreat observed since 1950s in the 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 ice cover. Further 4.9 km2 disappeared (10% of the original ice cover, i.e. in 1956). The ice retreat magnitude in this period cannot be attributed to in-built variations of the glacier system. Further, it is associated to similar glaciers retractions 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antartic* Antártica Ice Shelves King George Island South Shetland Islands Periódicos Científicos da UFRGS (Universidade Federal do Rio Grande do Sul) Admiralty Bay Antarctic Antarctic Peninsula King George Island Pressure Point ENVELOPE(-95.301,-95.301,73.985,73.985) South Shetland Islands The Antarctic Pesquisas em Geociências 28 2 337 |
institution |
Open Polar |
collection |
Periódicos Científicos da UFRGS (Universidade Federal do Rio Grande do Sul) |
op_collection_id |
ftunivfrgsojs |
language |
Portuguese |
topic |
glacier retreat King George Island Antartica Geociências |
spellingShingle |
glacier retreat King George Island Antartica Geociências ARIGONY NETO, JORGE SIMÕES, JEFERSON CARDIA BREMER, ULISSES FRANZ AQUINO, FRANCISCO ELISEU Antartic environmental change detection using remote sensing data and historical maps |
topic_facet |
glacier retreat King George Island Antartica Geociências |
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 to climatic variations. This work discusses glaciers retreat observed since 1950s in the 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 ice cover. Further 4.9 km2 disappeared (10% of the original ice cover, i.e. in 1956). The ice retreat magnitude in this period cannot be attributed to in-built variations of the glacier system. Further, it is associated to similar glaciers retractions 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. |
format |
Article in Journal/Newspaper |
author |
ARIGONY NETO, JORGE SIMÕES, JEFERSON CARDIA BREMER, ULISSES FRANZ AQUINO, FRANCISCO ELISEU |
author_facet |
ARIGONY NETO, JORGE SIMÕES, JEFERSON CARDIA BREMER, ULISSES FRANZ AQUINO, FRANCISCO ELISEU |
author_sort |
ARIGONY NETO, JORGE |
title |
Antartic environmental change detection using remote sensing data and historical maps |
title_short |
Antartic environmental change detection using remote sensing data and historical maps |
title_full |
Antartic environmental change detection using remote sensing data and historical maps |
title_fullStr |
Antartic environmental change detection using remote sensing data and historical maps |
title_full_unstemmed |
Antartic environmental change detection using remote sensing data and historical maps |
title_sort |
antartic environmental change detection using remote sensing data and historical maps |
publisher |
Instituto de Geociências /Universidade Federal do Rio Grande do Sul |
publishDate |
2001 |
url |
https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307 |
long_lat |
ENVELOPE(-95.301,-95.301,73.985,73.985) |
geographic |
Admiralty Bay Antarctic Antarctic Peninsula King George Island Pressure Point South Shetland Islands The Antarctic |
geographic_facet |
Admiralty Bay Antarctic Antarctic Peninsula King George Island Pressure Point South Shetland Islands The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antartic* Antártica Ice Shelves King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antartic* Antártica Ice Shelves King George Island South Shetland Islands |
op_source |
Pesquisas em Geociências; v. 28 n. 2 (2001): Pesquisas em Geociências; 337-342 1807-9806 1518-2398 |
op_relation |
https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307/pdf https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20307 |
container_title |
Pesquisas em Geociências |
container_volume |
28 |
container_issue |
2 |
container_start_page |
337 |
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1771545230613413888 |