Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data
As part of the International Trans-Antarctic Scientific Expedition project, the Italian Antarctic Programme undertook two traverses from the Terra Nova station to Talos Dome and to Dome C. Along the traverses, the party carried out several tasks (drilling, glaciological and geophysical exploration)....
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International Glaciological Society
2002
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ftingv:oai:www.earth-prints.org:2122/4066 2023-05-15T13:29:06+02:00 Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data Frezzotti, M. Gandolfi, S. La Marca, F. Urbini, S. Frezzotti, M.; ENEA, Centro Ricerche Casaccia, P.O. Box 2400, I-00100 Rome, Italy Gandolfi, S.; DISTART, Università di Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy La Marca, F.; Dipartimento di ICMMPM, Università di Roma "La Sapienza", Via Eudossiana 18, I-00184 Rome, Italy Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ENEA, Centro Ricerche Casaccia, P.O. Box 2400, I-00100 Rome, Italy DISTART, Università di Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy Dipartimento di ICMMPM, Università di Roma "La Sapienza", Via Eudossiana 18, I-00184 Rome, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia 2002 http://hdl.handle.net/2122/4066 en eng International Glaciological Society Annals of Glaciology / 34 (2002) http://hdl.handle.net/2122/4066 restricted snow dunes East Antarctica GPR GPS snow morphologies 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 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous article 2002 ftingv 2022-07-29T06:04:57Z As part of the International Trans-Antarctic Scientific Expedition project, the Italian Antarctic Programme undertook two traverses from the Terra Nova station to Talos Dome and to Dome C. Along the traverses, the party carried out several tasks (drilling, glaciological and geophysical exploration). The difference in spectral response between glazed surfaces and snow makes it simple to identify these areas on visible/near-infrared satellite images. Integration of field observation and remotely sensed data allows the description of different mega-morphologic features: wide glazed surfaces, sastrugy glazed surface fields, transverse dunes and megadunes. Topography global positioning system, ground penetrating radar and detailed snow-surface surveys have been carried out, providing new information about the formation and evolution of mega-morphologic features. The extensive presence, (up to 30%) of glazed surface caused by a long hiatus in accumulation, with an accumulation rate of nil or slightly negative, has a significant impact on the surface mass balance of a wide area of the interior part of East Antarctica. The aeolian processes creating these features have important implications for the selection of optimum sites for ice coring, because orographic variations of even a few metres per kilometre have a significant impact on the snow-accumulation process. Remote-sensing surveys of aeolian macro-morphology provide a proven, high-quality method for detailed mapping of the interior of the ice sheet's prevalent wind direction and could provide a relative indication of wind intensity. Published 81-88 3.8. Geofisica per l'ambiente JCR Journal reserved Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Antarctic East Antarctica Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
snow dunes East Antarctica GPR GPS snow morphologies 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 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous |
spellingShingle |
snow dunes East Antarctica GPR GPS snow morphologies 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 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous Frezzotti, M. Gandolfi, S. La Marca, F. Urbini, S. Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
topic_facet |
snow dunes East Antarctica GPR GPS snow morphologies 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 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous |
description |
As part of the International Trans-Antarctic Scientific Expedition project, the Italian Antarctic Programme undertook two traverses from the Terra Nova station to Talos Dome and to Dome C. Along the traverses, the party carried out several tasks (drilling, glaciological and geophysical exploration). The difference in spectral response between glazed surfaces and snow makes it simple to identify these areas on visible/near-infrared satellite images. Integration of field observation and remotely sensed data allows the description of different mega-morphologic features: wide glazed surfaces, sastrugy glazed surface fields, transverse dunes and megadunes. Topography global positioning system, ground penetrating radar and detailed snow-surface surveys have been carried out, providing new information about the formation and evolution of mega-morphologic features. The extensive presence, (up to 30%) of glazed surface caused by a long hiatus in accumulation, with an accumulation rate of nil or slightly negative, has a significant impact on the surface mass balance of a wide area of the interior part of East Antarctica. The aeolian processes creating these features have important implications for the selection of optimum sites for ice coring, because orographic variations of even a few metres per kilometre have a significant impact on the snow-accumulation process. Remote-sensing surveys of aeolian macro-morphology provide a proven, high-quality method for detailed mapping of the interior of the ice sheet's prevalent wind direction and could provide a relative indication of wind intensity. Published 81-88 3.8. Geofisica per l'ambiente JCR Journal reserved |
author2 |
Frezzotti, M.; ENEA, Centro Ricerche Casaccia, P.O. Box 2400, I-00100 Rome, Italy Gandolfi, S.; DISTART, Università di Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy La Marca, F.; Dipartimento di ICMMPM, Università di Roma "La Sapienza", Via Eudossiana 18, I-00184 Rome, Italy Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ENEA, Centro Ricerche Casaccia, P.O. Box 2400, I-00100 Rome, Italy DISTART, Università di Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy Dipartimento di ICMMPM, Università di Roma "La Sapienza", Via Eudossiana 18, I-00184 Rome, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia |
format |
Article in Journal/Newspaper |
author |
Frezzotti, M. Gandolfi, S. La Marca, F. Urbini, S. |
author_facet |
Frezzotti, M. Gandolfi, S. La Marca, F. Urbini, S. |
author_sort |
Frezzotti, M. |
title |
Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
title_short |
Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
title_full |
Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
title_fullStr |
Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
title_full_unstemmed |
Snow dunes and glazed surfaces in Antarctica: new field and remote-sensing data |
title_sort |
snow dunes and glazed surfaces in antarctica: new field and remote-sensing data |
publisher |
International Glaciological Society |
publishDate |
2002 |
url |
http://hdl.handle.net/2122/4066 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctica Talos Dome |
geographic_facet |
Antarctic East Antarctica Talos Dome |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica |
op_relation |
Annals of Glaciology / 34 (2002) http://hdl.handle.net/2122/4066 |
op_rights |
restricted |
_version_ |
1765998487610064896 |