Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse.
Dome C was chosen by the European Project for Ice Coring in Antarctica (EPICA) as the site for the drilling of a deep ice core. This paper presents results from geodetic surveys of ice velocities (absolute and relative) at Dome C and along a transect to Terra Nova Bay. The purpose of the surveys was...
Published in: | Annals of Glaciology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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International Glaciological Society:Lensfield Road, Scott Polar Research Institute, Cambridge CB2 1ER United Kingdom:011 44 1223 355974, EMAIL: int_glaciol_soc@compuserve.com, 100751.1667@compuserve.com, INTERNET: http://www.spri.cam.ac.uk/igs/home.htm, Fax: 011 44 1223 336543
2004
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Online Access: | http://hdl.handle.net/11380/450337 https://doi.org/10.3189/172756404781814627 |
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ftunivmodena:oai:iris.unimore.it:11380/450337 2024-04-14T08:02:31+00:00 Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. L. Vittuari C. Vincent M. Frezzotti S. Gandolfi G. Bitelli CAPRA, Alessandro MANCINI, Francesco L., Vittuari C., Vincent M., Frezzotti S., Gandolfi G., Bitelli CAPRA, Alessandro MANCINI, Francesco 2004 STAMPA http://hdl.handle.net/11380/450337 https://doi.org/10.3189/172756404781814627 eng eng International Glaciological Society:Lensfield Road, Scott Polar Research Institute, Cambridge CB2 1ER United Kingdom:011 44 1223 355974, EMAIL: int_glaciol_soc@compuserve.com, 100751.1667@compuserve.com, INTERNET: http://www.spri.cam.ac.uk/igs/home.htm, Fax: 011 44 1223 336543 info:eu-repo/semantics/altIdentifier/wos/WOS:000232368400061 volume:39 firstpage:402 lastpage:408 numberofpages:7 journal:ANNALS OF GLACIOLOGY http://hdl.handle.net/11380/450337 doi:10.3189/172756404781814627 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-23844511127 info:eu-repo/semantics/openAccess Space geodesy GPS Dome C Ice surface velocitie Antarctica info:eu-repo/semantics/article 2004 ftunivmodena https://doi.org/10.3189/172756404781814627 2024-03-21T17:37:10Z Dome C was chosen by the European Project for Ice Coring in Antarctica (EPICA) as the site for the drilling of a deep ice core. This paper presents results from geodetic surveys of ice velocities (absolute and relative) at Dome C and along a transect to Terra Nova Bay. The purpose of the surveys was to provide accurate data for the study of ice dynamics, particularly a strain network comprising 37 poles surveyed in 1995 and again in 1999. Data indicate that the ice surface at the poles closest to the topographic summit moves horizontally by up to a few mm a−1 in a direction consistent with downslope motion of the ice sheet, while 25 km from the summit it moves up to 211 mm a−1. The EPICA drilling site yields an interpolated velocity of about 15 ± 10 mm a−1 in a north-northwesterly direction. Analysis of the velocity field and surface topography reveals that the surface flow centre is nearly co-located with the dome summit, and that both are in a steady-state condition. The measured horizontal velocities are consistent with the remote-sensing result and provide accurate ground-truth control for flow mapping. Seven snow–firn cores, up to 53 m deep, were drilled during the Terra Nova Bay–Dome C traverse. Submerged velocity systems were installed at the borehole and measured using the global positioning system (GPS). First results show a steady-state condition. Measured (horizontal) ice velocities increase from the summit of the ice sheet to the coast, reaching about 28 m a−1 at site GPS2A. Article in Journal/Newspaper Antarc* Antarctica EPICA ice core Ice Sheet Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) Terra Nova Bay Annals of Glaciology 39 402 408 |
institution |
Open Polar |
collection |
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) |
op_collection_id |
ftunivmodena |
language |
English |
topic |
Space geodesy GPS Dome C Ice surface velocitie Antarctica |
spellingShingle |
Space geodesy GPS Dome C Ice surface velocitie Antarctica L. Vittuari C. Vincent M. Frezzotti S. Gandolfi G. Bitelli CAPRA, Alessandro MANCINI, Francesco Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
topic_facet |
Space geodesy GPS Dome C Ice surface velocitie Antarctica |
description |
Dome C was chosen by the European Project for Ice Coring in Antarctica (EPICA) as the site for the drilling of a deep ice core. This paper presents results from geodetic surveys of ice velocities (absolute and relative) at Dome C and along a transect to Terra Nova Bay. The purpose of the surveys was to provide accurate data for the study of ice dynamics, particularly a strain network comprising 37 poles surveyed in 1995 and again in 1999. Data indicate that the ice surface at the poles closest to the topographic summit moves horizontally by up to a few mm a−1 in a direction consistent with downslope motion of the ice sheet, while 25 km from the summit it moves up to 211 mm a−1. The EPICA drilling site yields an interpolated velocity of about 15 ± 10 mm a−1 in a north-northwesterly direction. Analysis of the velocity field and surface topography reveals that the surface flow centre is nearly co-located with the dome summit, and that both are in a steady-state condition. The measured horizontal velocities are consistent with the remote-sensing result and provide accurate ground-truth control for flow mapping. Seven snow–firn cores, up to 53 m deep, were drilled during the Terra Nova Bay–Dome C traverse. Submerged velocity systems were installed at the borehole and measured using the global positioning system (GPS). First results show a steady-state condition. Measured (horizontal) ice velocities increase from the summit of the ice sheet to the coast, reaching about 28 m a−1 at site GPS2A. |
author2 |
L., Vittuari C., Vincent M., Frezzotti S., Gandolfi G., Bitelli CAPRA, Alessandro MANCINI, Francesco |
format |
Article in Journal/Newspaper |
author |
L. Vittuari C. Vincent M. Frezzotti S. Gandolfi G. Bitelli CAPRA, Alessandro MANCINI, Francesco |
author_facet |
L. Vittuari C. Vincent M. Frezzotti S. Gandolfi G. Bitelli CAPRA, Alessandro MANCINI, Francesco |
author_sort |
L. Vittuari |
title |
Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
title_short |
Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
title_full |
Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
title_fullStr |
Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
title_full_unstemmed |
Space Geodesy as a tool for measuring ice surface velocity in the Dome C region and along the ITASE traverse. |
title_sort |
space geodesy as a tool for measuring ice surface velocity in the dome c region and along the itase traverse. |
publisher |
International Glaciological Society:Lensfield Road, Scott Polar Research Institute, Cambridge CB2 1ER United Kingdom:011 44 1223 355974, EMAIL: int_glaciol_soc@compuserve.com, 100751.1667@compuserve.com, INTERNET: http://www.spri.cam.ac.uk/igs/home.htm, Fax: 011 44 1223 336543 |
publishDate |
2004 |
url |
http://hdl.handle.net/11380/450337 https://doi.org/10.3189/172756404781814627 |
geographic |
Terra Nova Bay |
geographic_facet |
Terra Nova Bay |
genre |
Antarc* Antarctica EPICA ice core Ice Sheet |
genre_facet |
Antarc* Antarctica EPICA ice core Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000232368400061 volume:39 firstpage:402 lastpage:408 numberofpages:7 journal:ANNALS OF GLACIOLOGY http://hdl.handle.net/11380/450337 doi:10.3189/172756404781814627 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-23844511127 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3189/172756404781814627 |
container_title |
Annals of Glaciology |
container_volume |
39 |
container_start_page |
402 |
op_container_end_page |
408 |
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1796315446350184448 |