Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance
Sand-wedge polygons are a ubiquitous periglacial feature throughout the ice-free lowlands of McMurdo Sound, Antarctica. These features were once extensive in the ice-free areas on the southern tip of the Hut Point Peninsula on Ross Island. However, operations of McMurdo Station, which have supported...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.485.5779 2023-05-15T13:46:37+02:00 Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance Andrew G. Klein Mahlon C. Kennicutt Ii Gary A. Wolff Steve T. Sweet Diana A. Gielstra Tiffany Bloxom The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.485.5779 http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.485.5779 http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf Antarctica periglacial remote sensing environment text ftciteseerx 2016-01-08T08:09:58Z Sand-wedge polygons are a ubiquitous periglacial feature throughout the ice-free lowlands of McMurdo Sound, Antarctica. These features were once extensive in the ice-free areas on the southern tip of the Hut Point Peninsula on Ross Island. However, operations of McMurdo Station, which have supported scientific activities across the Antarctic continent since the late 1950s, have disturbed much of the local area. This physical disturbance has significantly reduced the extent of sand-wedge polygons in the area surrounding the station. With the exception of an area covering approximately 0.5 km2 on Arrival Heights, a smaller area of 0.15 km2 near Cape Armitage and other small scattered remnants, most sand-wedge polygons in the area have been disturbed during nearly 50 years of continuous human occupation. The disturbance of sand-wedge polygons was most extensive during the first 10 years of the station’s history. Mapping the presence or absence of sand-wedge polygons at McMurdo through time is one means, although imperfect, of documenting changes in the station’s “footprint ” of physical disturbance through time. Monitoring future changes in their extent can aid in assessment of whether the spatial extent of physical disturbance at McMurdo continues to grow. Text Antarc* Antarctic Antarctica McMurdo Sound Ross Island Unknown Antarctic Armitage ENVELOPE(166.667,166.667,-77.850,-77.850) Arrival Heights ENVELOPE(166.650,166.650,-77.817,-77.817) Cape Armitage ENVELOPE(163.250,163.250,-78.150,-78.150) Hut Point ENVELOPE(166.850,166.850,-77.767,-77.767) Hut Point Peninsula ENVELOPE(166.850,166.850,-77.767,-77.767) McMurdo Sound McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Island The Antarctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Antarctica periglacial remote sensing environment |
spellingShingle |
Antarctica periglacial remote sensing environment Andrew G. Klein Mahlon C. Kennicutt Ii Gary A. Wolff Steve T. Sweet Diana A. Gielstra Tiffany Bloxom Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
topic_facet |
Antarctica periglacial remote sensing environment |
description |
Sand-wedge polygons are a ubiquitous periglacial feature throughout the ice-free lowlands of McMurdo Sound, Antarctica. These features were once extensive in the ice-free areas on the southern tip of the Hut Point Peninsula on Ross Island. However, operations of McMurdo Station, which have supported scientific activities across the Antarctic continent since the late 1950s, have disturbed much of the local area. This physical disturbance has significantly reduced the extent of sand-wedge polygons in the area surrounding the station. With the exception of an area covering approximately 0.5 km2 on Arrival Heights, a smaller area of 0.15 km2 near Cape Armitage and other small scattered remnants, most sand-wedge polygons in the area have been disturbed during nearly 50 years of continuous human occupation. The disturbance of sand-wedge polygons was most extensive during the first 10 years of the station’s history. Mapping the presence or absence of sand-wedge polygons at McMurdo through time is one means, although imperfect, of documenting changes in the station’s “footprint ” of physical disturbance through time. Monitoring future changes in their extent can aid in assessment of whether the spatial extent of physical disturbance at McMurdo continues to grow. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Andrew G. Klein Mahlon C. Kennicutt Ii Gary A. Wolff Steve T. Sweet Diana A. Gielstra Tiffany Bloxom |
author_facet |
Andrew G. Klein Mahlon C. Kennicutt Ii Gary A. Wolff Steve T. Sweet Diana A. Gielstra Tiffany Bloxom |
author_sort |
Andrew G. Klein |
title |
Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
title_short |
Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
title_full |
Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
title_fullStr |
Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
title_full_unstemmed |
Disruption of Sand-Wedge Polygons at McMurdo Station, Antarctica: An Indication of Physical Disturbance |
title_sort |
disruption of sand-wedge polygons at mcmurdo station, antarctica: an indication of physical disturbance |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.485.5779 http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(166.650,166.650,-77.817,-77.817) ENVELOPE(163.250,163.250,-78.150,-78.150) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
Antarctic Armitage Arrival Heights Cape Armitage Hut Point Hut Point Peninsula McMurdo Sound McMurdo Station Ross Island The Antarctic |
geographic_facet |
Antarctic Armitage Arrival Heights Cape Armitage Hut Point Hut Point Peninsula McMurdo Sound McMurdo Station Ross Island The Antarctic |
genre |
Antarc* Antarctic Antarctica McMurdo Sound Ross Island |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound Ross Island |
op_source |
http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.485.5779 http://www.easternsnow.org/proceedings/2004/klein_et_al.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766244624339304448 |