Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area
In the last few years subglacial lakes have been of great interest to the scientific community for various reasons. The lakes could be an unknown extreme habitat, which have been isolated from the terrestrial biosphere for a long time. They may have formed before the ice sheet and could perhaps reve...
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Language: | English |
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Terra Antartica Publication
2003
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Online Access: | http://hdl.handle.net/2122/4063 |
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ftingv:oai:www.earth-prints.org:2122/4063 |
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Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
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English |
topic |
subglacial lakes RES systems East Antarctica 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 02. Cryosphere::02.02. Glaciers::02.02.10. Instruments and techniques |
spellingShingle |
subglacial lakes RES systems East Antarctica 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 02. Cryosphere::02.02. Glaciers::02.02.10. Instruments and techniques Tabacco, I. E. Forieri, A. Della Vedova, A. Zirizzotti, A. Bianchi, C. De Michelis, P. Passerini, A. Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
topic_facet |
subglacial lakes RES systems East Antarctica 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 02. Cryosphere::02.02. Glaciers::02.02.10. Instruments and techniques |
description |
In the last few years subglacial lakes have been of great interest to the scientific community for various reasons. The lakes could be an unknown extreme habitat, which have been isolated from the terrestrial biosphere for a long time. They may have formed before the ice sheet and could perhaps reveal environmental conditions prior to its formation. Lastly, they may play a role in the current dynamics of the ice sheet. Strong radar reflections from the base of the ice sheet can generally be ascribed to either water-saturated basal sediments or subglacial lakes (Oswald & Robin, 1973). Based on radar data alone, the identification of lakes is possible if other features are present: flat and quite horizontal reflectors with nearly constant echo intensity and sharp edges similar to the margins of a catchment basin (Siegert et al., 1996; Siegert & Ridley, 1998; German & Siegert, 1999; Siegert, 2000; Tabacco et al., 2002). Subglacial lakes can be expressed in the overlying ice sheet as extremely flat surfaces with respect to the surrounding slopes (Ridley et al., 1993; Kapitsa et &l996 Siegert & Ridley,1998; Tabacco et al., 2002). To date, about 70 lakes have been discovered in all of Antarctica (Siegert et al.,1996); 21 of these are located in the Dome C-Vostok region. Published Milan, 25-26 June 2002 / Dipartimento di Scienze Ambiente e Territorio (DISAT), Università di Milano Bicocca, P.zza della Scienza 1, 20126 Milano 3.8. Geofisica per l'ambiente open |
author2 |
Tabacco, I. E.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Forieri, A.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy and Dipartimento di Scienze della Terra, Università di Siena, Via del Laterino 8, 53100 Siena - Italy Della Vedova, A.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Zirizzotti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Bianchi, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia De Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Passerini, A.; Università degli Studi di Milano Bicocca, Piazza della Scienza 1 , 20126 Milano - Italy Frezzotti, M.; ENEA Progetto Clima, PO Box 2400, 000100 Roma AD - Italy Maggi, V.; Department of Environmental Sciences, University of Milano–Bicocca, Piazza della Scienza 1, I-20126 Milan, Italy Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy and Dipartimento di Scienze della Terra, Università di Siena, Via del Laterino 8, 53100 Siena - Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Università degli Studi di Milano Bicocca, Piazza della Scienza 1 , 20126 Milano - Italy Frezzotti, M. Maggi, V. ENEA Progetto Clima, PO Box 2400, 000100 Roma AD - Italy Department of Environmental Sciences, University of Milano–Bicocca, Piazza della Scienza 1, I-20126 Milan, Italy |
format |
Conference Object |
author |
Tabacco, I. E. Forieri, A. Della Vedova, A. Zirizzotti, A. Bianchi, C. De Michelis, P. Passerini, A. |
author_facet |
Tabacco, I. E. Forieri, A. Della Vedova, A. Zirizzotti, A. Bianchi, C. De Michelis, P. Passerini, A. |
author_sort |
Tabacco, I. E. |
title |
Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
title_short |
Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
title_full |
Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
title_fullStr |
Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
title_full_unstemmed |
Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area |
title_sort |
evidence of 14 new subglacial lakes in the dome c-vostok area |
publisher |
Terra Antartica Publication |
publishDate |
2003 |
url |
http://hdl.handle.net/2122/4063 |
long_lat |
ENVELOPE(-58.017,-58.017,-61.850,-61.850) |
geographic |
East Antarctica Ridley |
geographic_facet |
East Antarctica Ridley |
genre |
Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet Journal of Glaciology |
genre_facet |
Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet Journal of Glaciology |
op_relation |
4th Meeting on Italian Antarctic Glaciology Gorman M.R. & Siegert M.J., 1999. Penetration of Antarctic subglacial lakes by VHF electromagnetic pulses: Information on the depth and electrical conductivity of basal water bodies. Journal of Geophysical Research, 104(B12), 2931 1-29320. Kapitsa A.P., Ridley J.K., Robin G. De Q., Siegert M.J. and Zotikov I.A. 1996. A large deep freshwater lake beneath the ice of central East Antarctica. Nature, 381, 684-686. Oswald G.K.A. & Robin G. cle Q., 1973. Lakes beneath the Antarctic Ice sheet. Nature, 245, 25 1-254, 1973. Ridley J.K., Cudlip W. & Laxon S.W., 1993. Identification of subglacial lakes using ERS-1 radar altimeter. Journal of Glaciology. 39, 625-634. Siegert M.J., Dowdeswell J.A., Gorman M.R. & McIntyre N.F., 1996. An inventory of Antarctic subglacial lakes. Antarctic Science, 8, 281-286. Siegert M.J. & Ridley J.K., 1998. Determining basal ice-sheet conditions in the Dome C region of East Antartica using satellite radar altimetry and airborne radio-echo sounding. Journal of Glaciology, 44, 1-8. Siegert M.J., Kwok R., Mayer C., Hubbard B. 2000. Water exchange between the subglacial Lake Vostok and the overlying ice sheet. Nature, 403, 643-646. Tabacco I.E., C. Bianchi, Achille Zirizzotti, E. Zuccheretti, A. Forieri &A. Della Vedova, 2002. Airborne radar survey above Vostok region, East Central Antarctica: ice thickness and Lake Vostok geometry. Journal of Glacioloey, 48, 62-69. http://hdl.handle.net/2122/4063 |
op_rights |
open |
_version_ |
1766255669059518464 |
spelling |
ftingv:oai:www.earth-prints.org:2122/4063 2023-05-15T13:51:39+02:00 Evidence of 14 New Subglacial Lakes in the Dome C-Vostok Area Tabacco, I. E. Forieri, A. Della Vedova, A. Zirizzotti, A. Bianchi, C. De Michelis, P. Passerini, A. Tabacco, I. E.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Forieri, A.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy and Dipartimento di Scienze della Terra, Università di Siena, Via del Laterino 8, 53100 Siena - Italy Della Vedova, A.; Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Zirizzotti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Bianchi, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia De Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Passerini, A.; Università degli Studi di Milano Bicocca, Piazza della Scienza 1 , 20126 Milano - Italy Frezzotti, M.; ENEA Progetto Clima, PO Box 2400, 000100 Roma AD - Italy Maggi, V.; Department of Environmental Sciences, University of Milano–Bicocca, Piazza della Scienza 1, I-20126 Milan, Italy Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy Università degli Studi di Milano, Sezione Geofisica, Via Cicognara 7, 20129 Milano - Italy and Dipartimento di Scienze della Terra, Università di Siena, Via del Laterino 8, 53100 Siena - Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Università degli Studi di Milano Bicocca, Piazza della Scienza 1 , 20126 Milano - Italy Frezzotti, M. Maggi, V. ENEA Progetto Clima, PO Box 2400, 000100 Roma AD - Italy Department of Environmental Sciences, University of Milano–Bicocca, Piazza della Scienza 1, I-20126 Milan, Italy 2003 http://hdl.handle.net/2122/4063 en eng Terra Antartica Publication 4th Meeting on Italian Antarctic Glaciology Gorman M.R. & Siegert M.J., 1999. Penetration of Antarctic subglacial lakes by VHF electromagnetic pulses: Information on the depth and electrical conductivity of basal water bodies. Journal of Geophysical Research, 104(B12), 2931 1-29320. Kapitsa A.P., Ridley J.K., Robin G. De Q., Siegert M.J. and Zotikov I.A. 1996. A large deep freshwater lake beneath the ice of central East Antarctica. Nature, 381, 684-686. Oswald G.K.A. & Robin G. cle Q., 1973. Lakes beneath the Antarctic Ice sheet. Nature, 245, 25 1-254, 1973. Ridley J.K., Cudlip W. & Laxon S.W., 1993. Identification of subglacial lakes using ERS-1 radar altimeter. Journal of Glaciology. 39, 625-634. Siegert M.J., Dowdeswell J.A., Gorman M.R. & McIntyre N.F., 1996. An inventory of Antarctic subglacial lakes. Antarctic Science, 8, 281-286. Siegert M.J. & Ridley J.K., 1998. Determining basal ice-sheet conditions in the Dome C region of East Antartica using satellite radar altimetry and airborne radio-echo sounding. Journal of Glaciology, 44, 1-8. Siegert M.J., Kwok R., Mayer C., Hubbard B. 2000. Water exchange between the subglacial Lake Vostok and the overlying ice sheet. Nature, 403, 643-646. Tabacco I.E., C. Bianchi, Achille Zirizzotti, E. Zuccheretti, A. Forieri &A. Della Vedova, 2002. Airborne radar survey above Vostok region, East Central Antarctica: ice thickness and Lake Vostok geometry. Journal of Glacioloey, 48, 62-69. http://hdl.handle.net/2122/4063 open subglacial lakes RES systems East Antarctica 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 02. Cryosphere::02.02. Glaciers::02.02.10. Instruments and techniques Conference paper 2003 ftingv 2022-07-29T06:04:57Z In the last few years subglacial lakes have been of great interest to the scientific community for various reasons. The lakes could be an unknown extreme habitat, which have been isolated from the terrestrial biosphere for a long time. They may have formed before the ice sheet and could perhaps reveal environmental conditions prior to its formation. Lastly, they may play a role in the current dynamics of the ice sheet. Strong radar reflections from the base of the ice sheet can generally be ascribed to either water-saturated basal sediments or subglacial lakes (Oswald & Robin, 1973). Based on radar data alone, the identification of lakes is possible if other features are present: flat and quite horizontal reflectors with nearly constant echo intensity and sharp edges similar to the margins of a catchment basin (Siegert et al., 1996; Siegert & Ridley, 1998; German & Siegert, 1999; Siegert, 2000; Tabacco et al., 2002). Subglacial lakes can be expressed in the overlying ice sheet as extremely flat surfaces with respect to the surrounding slopes (Ridley et al., 1993; Kapitsa et &l996 Siegert & Ridley,1998; Tabacco et al., 2002). To date, about 70 lakes have been discovered in all of Antarctica (Siegert et al.,1996); 21 of these are located in the Dome C-Vostok region. Published Milan, 25-26 June 2002 / Dipartimento di Scienze Ambiente e Territorio (DISAT), Università di Milano Bicocca, P.zza della Scienza 1, 20126 Milano 3.8. Geofisica per l'ambiente open Conference Object Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet Journal of Glaciology Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) East Antarctica Ridley ENVELOPE(-58.017,-58.017,-61.850,-61.850) |