Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations
The variations and dynamics of the southern edge of Fuchs Ice Piedmont, Adelaide island (67 degrees 45'09'S, 68 degrees 55'04'W), Antarctic Peninsula, are presented. The snow-covered surface of the glacier has been used since the 1960s for landing aeroplanes in support of British...
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INT GLACIOLOGICAL SOC
2005
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ftunivchilecap:oai:www.captura.uchile.cl:2250/2421 2023-05-15T13:03:50+02:00 Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations Rivera, Andrés Casassa, Gino Thomas, R. Rignot, E. Zamora, R. Antúnez, D. Acuña, César Ordenes, F. 2005 http://www.captura.uchile.cl/handle/2250/2421 en eng INT GLACIOLOGICAL SOC LARSEN ICE SHELF WEST ANTARCTICA CLIMATE-CHANGE MASS-BALANCE PENINSULA COLLAPSE CREVASSES RETREAT RADAR Artículo de Revista 2005 ftunivchilecap 2013-12-20T10:19:40Z The variations and dynamics of the southern edge of Fuchs Ice Piedmont, Adelaide island (67 degrees 45'09'S, 68 degrees 55'04'W), Antarctic Peninsula, are presented. The snow-covered surface of the glacier has been used since the 1960s for landing aeroplanes in support of British, and more recently Chilean, operations at nearby Teniente Carvajal station (formerly known as Adelaide T). In recent years, snow conditions in the runway area have progressively deteriorated, due to increasingly early summer melting. Radio-echo sounding, global positioning system and remotely sensed data have been analyzed for mapping the crevasse and ice velocity fields, as well as the surface and subglacial topography of the area. The results show that the runway area is located on a local ice divide surrounded by crevasses which are appearing on the glacier surface progressively earlier in the summer, presumably due to higher snowmelt and perhaps higher ice velocities, in response to regional atmospheric warming. In the near future, landing operations will be further affected as more crevasses will appear in the runway area if present warming trends persist. This situation affects all coastal areas in the Antarctic Peninsula, hence the need to search for possible new locations of crevasse-free runways at higher elevations. Article in Journal/Newspaper Adelaide Island Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Larsen Ice Shelf West Antarctica Universidad de Chile: Captura Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Antarctic Antarctic Peninsula Carvajal ENVELOPE(-73.750,-73.750,-71.667,-71.667) Fuchs ENVELOPE(-68.666,-68.666,-67.233,-67.233) Fuchs Ice Piedmont ENVELOPE(-68.667,-68.667,-67.233,-67.233) Larsen Ice Shelf ENVELOPE(-62.500,-62.500,-67.500,-67.500) Teniente ENVELOPE(-63.533,-63.533,-64.867,-64.867) The Antarctic West Antarctica |
institution |
Open Polar |
collection |
Universidad de Chile: Captura |
op_collection_id |
ftunivchilecap |
language |
English |
topic |
LARSEN ICE SHELF WEST ANTARCTICA CLIMATE-CHANGE MASS-BALANCE PENINSULA COLLAPSE CREVASSES RETREAT RADAR |
spellingShingle |
LARSEN ICE SHELF WEST ANTARCTICA CLIMATE-CHANGE MASS-BALANCE PENINSULA COLLAPSE CREVASSES RETREAT RADAR Rivera, Andrés Casassa, Gino Thomas, R. Rignot, E. Zamora, R. Antúnez, D. Acuña, César Ordenes, F. Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
topic_facet |
LARSEN ICE SHELF WEST ANTARCTICA CLIMATE-CHANGE MASS-BALANCE PENINSULA COLLAPSE CREVASSES RETREAT RADAR |
description |
The variations and dynamics of the southern edge of Fuchs Ice Piedmont, Adelaide island (67 degrees 45'09'S, 68 degrees 55'04'W), Antarctic Peninsula, are presented. The snow-covered surface of the glacier has been used since the 1960s for landing aeroplanes in support of British, and more recently Chilean, operations at nearby Teniente Carvajal station (formerly known as Adelaide T). In recent years, snow conditions in the runway area have progressively deteriorated, due to increasingly early summer melting. Radio-echo sounding, global positioning system and remotely sensed data have been analyzed for mapping the crevasse and ice velocity fields, as well as the surface and subglacial topography of the area. The results show that the runway area is located on a local ice divide surrounded by crevasses which are appearing on the glacier surface progressively earlier in the summer, presumably due to higher snowmelt and perhaps higher ice velocities, in response to regional atmospheric warming. In the near future, landing operations will be further affected as more crevasses will appear in the runway area if present warming trends persist. This situation affects all coastal areas in the Antarctic Peninsula, hence the need to search for possible new locations of crevasse-free runways at higher elevations. |
format |
Article in Journal/Newspaper |
author |
Rivera, Andrés Casassa, Gino Thomas, R. Rignot, E. Zamora, R. Antúnez, D. Acuña, César Ordenes, F. |
author_facet |
Rivera, Andrés Casassa, Gino Thomas, R. Rignot, E. Zamora, R. Antúnez, D. Acuña, César Ordenes, F. |
author_sort |
Rivera, Andrés |
title |
Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
title_short |
Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
title_full |
Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
title_fullStr |
Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
title_full_unstemmed |
Glacier wastage on southern Adelaide Island, Antarctica, and its impact on snow runway operations |
title_sort |
glacier wastage on southern adelaide island, antarctica, and its impact on snow runway operations |
publisher |
INT GLACIOLOGICAL SOC |
publishDate |
2005 |
url |
http://www.captura.uchile.cl/handle/2250/2421 |
long_lat |
ENVELOPE(-68.914,-68.914,-67.762,-67.762) ENVELOPE(-73.750,-73.750,-71.667,-71.667) ENVELOPE(-68.666,-68.666,-67.233,-67.233) ENVELOPE(-68.667,-68.667,-67.233,-67.233) ENVELOPE(-62.500,-62.500,-67.500,-67.500) ENVELOPE(-63.533,-63.533,-64.867,-64.867) |
geographic |
Adelaide Island Antarctic Antarctic Peninsula Carvajal Fuchs Fuchs Ice Piedmont Larsen Ice Shelf Teniente The Antarctic West Antarctica |
geographic_facet |
Adelaide Island Antarctic Antarctic Peninsula Carvajal Fuchs Fuchs Ice Piedmont Larsen Ice Shelf Teniente The Antarctic West Antarctica |
genre |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Larsen Ice Shelf West Antarctica |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Larsen Ice Shelf West Antarctica |
_version_ |
1766346579178946560 |