Lakes and subglacial hydrological networks around Dome C, East Antarctica
AbstractPrecise topography from European Remote-sensing Satellite radar altimetry and high density of airborne radio-echo sounding in the area surrounding Dome C, Antarctica, show a link between surface features and subglacial lakes. In this paper, we extend the study to fine structures by computing...
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ftopenaccessrep:oai:zenodo.org:180108 2024-05-12T07:56:39+00:00 Lakes and subglacial hydrological networks around Dome C, East Antarctica Rémy, Frédérique Testut, Laurent Legrésy, Benoît Forieri, Alessandro Bianchi, Cesido Tabacco, Ignazio E. 2007-11-22 https://www.openaccessrepository.it/record/180108 https://doi.org/10.3189/172756403781815799 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/180108 doi:10.3189/172756403781815799 info:eu-repo/semantics/openAccess Earth-Surface Processes info:eu-repo/semantics/article publication-article 2007 ftopenaccessrep https://doi.org/10.3189/172756403781815799 2024-04-17T14:50:06Z AbstractPrecise topography from European Remote-sensing Satellite radar altimetry and high density of airborne radio-echo sounding in the area surrounding Dome C, Antarctica, show a link between surface features and subglacial lakes. In this paper, we extend the study to fine structures by computing a curvature-based coefficient (cy) related to surface undulations. These coefficient variations reveal many surface undulations, and some elongated features of this parameter seem to link known subglacial lakes. A population of high values of this coefficient, assumed to correspond to transitions between sliding and non-sliding flow regime, strengthen the appearance of a network which would link most of the lakes in the area. The existence of such a network impacts on ice-flow dynamics and on subglacial-lake studies. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository East Antarctica Annals of Glaciology 37 252 256 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Rémy, Frédérique Testut, Laurent Legrésy, Benoît Forieri, Alessandro Bianchi, Cesido Tabacco, Ignazio E. Lakes and subglacial hydrological networks around Dome C, East Antarctica |
topic_facet |
Earth-Surface Processes |
description |
AbstractPrecise topography from European Remote-sensing Satellite radar altimetry and high density of airborne radio-echo sounding in the area surrounding Dome C, Antarctica, show a link between surface features and subglacial lakes. In this paper, we extend the study to fine structures by computing a curvature-based coefficient (cy) related to surface undulations. These coefficient variations reveal many surface undulations, and some elongated features of this parameter seem to link known subglacial lakes. A population of high values of this coefficient, assumed to correspond to transitions between sliding and non-sliding flow regime, strengthen the appearance of a network which would link most of the lakes in the area. The existence of such a network impacts on ice-flow dynamics and on subglacial-lake studies. |
format |
Article in Journal/Newspaper |
author |
Rémy, Frédérique Testut, Laurent Legrésy, Benoît Forieri, Alessandro Bianchi, Cesido Tabacco, Ignazio E. |
author_facet |
Rémy, Frédérique Testut, Laurent Legrésy, Benoît Forieri, Alessandro Bianchi, Cesido Tabacco, Ignazio E. |
author_sort |
Rémy, Frédérique |
title |
Lakes and subglacial hydrological networks around Dome C, East Antarctica |
title_short |
Lakes and subglacial hydrological networks around Dome C, East Antarctica |
title_full |
Lakes and subglacial hydrological networks around Dome C, East Antarctica |
title_fullStr |
Lakes and subglacial hydrological networks around Dome C, East Antarctica |
title_full_unstemmed |
Lakes and subglacial hydrological networks around Dome C, East Antarctica |
title_sort |
lakes and subglacial hydrological networks around dome c, east antarctica |
publishDate |
2007 |
url |
https://www.openaccessrepository.it/record/180108 https://doi.org/10.3189/172756403781815799 |
geographic |
East Antarctica |
geographic_facet |
East Antarctica |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/180108 doi:10.3189/172756403781815799 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3189/172756403781815799 |
container_title |
Annals of Glaciology |
container_volume |
37 |
container_start_page |
252 |
op_container_end_page |
256 |
_version_ |
1798836839635746816 |