Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica
Snow accumulation and surface microrelief distributions, together with the surface katabatic wind pattern and elevation profiles, are presented for the eastern Wilkes Land katabatic wind zone. The broad-scale net accumulation distribution displays a strong negative correlation with elevation but on...
Published in: | Antarctic Science |
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1990
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Online Access: | https://researchers.mq.edu.au/en/publications/4398a582-07a5-4458-b1c6-a40b2d614266 https://doi.org/10.1017/S0954102090000323 http://www.scopus.com/inward/record.url?scp=0025660238&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/4398a582-07a5-4458-b1c6-a40b2d614266 2024-06-23T07:47:55+00:00 Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica Goodwin, Ian D. 1990 https://researchers.mq.edu.au/en/publications/4398a582-07a5-4458-b1c6-a40b2d614266 https://doi.org/10.1017/S0954102090000323 http://www.scopus.com/inward/record.url?scp=0025660238&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Goodwin , I D 1990 , ' Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica ' , Antarctic Science , vol. 2 , no. 3 , pp. 235-242 . https://doi.org/10.1017/S0954102090000323 Depositional regime Wilkes Land article 1990 ftmacquarieunicr https://doi.org/10.1017/S0954102090000323 2024-06-05T23:47:46Z Snow accumulation and surface microrelief distributions, together with the surface katabatic wind pattern and elevation profiles, are presented for the eastern Wilkes Land katabatic wind zone. The broad-scale net accumulation distribution displays a strong negative correlation with elevation but on the mesoscale there are significant variations with respect to the elevation profile. The accumulation distribution was found to be dependent on slope aspect. Higher accumulation rates were observed on the north-east (windward) slope than those on the north-west (leeward) slope for the elevation range of 1870 m-2230 m. These higher accumulation rates are associated with the occurrence of longitudinal dunes deposited by precipitation, during synoptic events. The dependence of the accumulation distribution on aspect implies that synoptic and orographic processes are the major control on the depositional regime, and that maritime synoptic systems regularly penetrate eastern Wilkes Land to at least 2300 m elevation. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Wilkes Land Macquarie University Research Portal Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Antarctic Science 2 3 235 242 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Depositional regime Wilkes Land |
spellingShingle |
Depositional regime Wilkes Land Goodwin, Ian D. Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
topic_facet |
Depositional regime Wilkes Land |
description |
Snow accumulation and surface microrelief distributions, together with the surface katabatic wind pattern and elevation profiles, are presented for the eastern Wilkes Land katabatic wind zone. The broad-scale net accumulation distribution displays a strong negative correlation with elevation but on the mesoscale there are significant variations with respect to the elevation profile. The accumulation distribution was found to be dependent on slope aspect. Higher accumulation rates were observed on the north-east (windward) slope than those on the north-west (leeward) slope for the elevation range of 1870 m-2230 m. These higher accumulation rates are associated with the occurrence of longitudinal dunes deposited by precipitation, during synoptic events. The dependence of the accumulation distribution on aspect implies that synoptic and orographic processes are the major control on the depositional regime, and that maritime synoptic systems regularly penetrate eastern Wilkes Land to at least 2300 m elevation. |
format |
Article in Journal/Newspaper |
author |
Goodwin, Ian D. |
author_facet |
Goodwin, Ian D. |
author_sort |
Goodwin, Ian D. |
title |
Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
title_short |
Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
title_full |
Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
title_fullStr |
Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
title_full_unstemmed |
Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica |
title_sort |
snow accumulation and surface topography in the katabatic zone of eastern wilkes land, antarctica |
publishDate |
1990 |
url |
https://researchers.mq.edu.au/en/publications/4398a582-07a5-4458-b1c6-a40b2d614266 https://doi.org/10.1017/S0954102090000323 http://www.scopus.com/inward/record.url?scp=0025660238&partnerID=8YFLogxK |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Wilkes Land |
geographic_facet |
Wilkes Land |
genre |
Antarc* Antarctic Science Antarctica Wilkes Land |
genre_facet |
Antarc* Antarctic Science Antarctica Wilkes Land |
op_source |
Goodwin , I D 1990 , ' Snow accumulation and surface topography in the katabatic zone of eastern Wilkes Land, Antarctica ' , Antarctic Science , vol. 2 , no. 3 , pp. 235-242 . https://doi.org/10.1017/S0954102090000323 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1017/S0954102090000323 |
container_title |
Antarctic Science |
container_volume |
2 |
container_issue |
3 |
container_start_page |
235 |
op_container_end_page |
242 |
_version_ |
1802638165876408320 |