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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4180
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dc.contributor.authorallRémy, F.; Laboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.authorallTestut, L.; Laboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.authorallLegrésy, B.; Laboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.authorallForieri, A.; Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Cicognara 7, I-20129 Milan, Italyen
dc.contributor.authorallBianchi, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallTabacco, I. E.; Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Cicognara 7, I-20129 Milan, Italyen
dc.date.accessioned2008-11-19T14:31:01Zen
dc.date.available2008-11-19T14:31:01Zen
dc.date.issued2003en
dc.identifier.urihttp://hdl.handle.net/2122/4180en
dc.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.en
dc.language.isoEnglishen
dc.publisher.nameInternational Glaciological Societyen
dc.relation.ispartofAnnals of Glaciologyen
dc.relation.ispartofseries/ 37 (2003)en
dc.subjectIce sheeten
dc.subjectSubglagial lakesen
dc.titleLakes and subglacial hydrological networks around Dome C, East Antarcticaen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber252-256en
dc.subject.INGV02. Cryosphere::02.02. Glaciers::02.02.03. Geomorphologyen
dc.subject.INGV02. Cryosphere::02.02. Glaciers::02.02.04. Iceen
dc.subject.INGV02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamicsen
dc.relation.referencesBudd, W. F. and D. B. Carter. 1971. An analysis of the relation between the surface and bedrock profiles of ice caps. J. Glaciol., 10(59), 197-209. Legrésy, B., E. Rignot and I. E. Tabacco. 2000. Constraining ice dynamics at Dome C, Antarctica, using remotely sensed measurements. Geophys. Res. Lett., 27(21), 3493-3496. Lythe, M. B., D.G. Vaughan and BEDMAP Consortium. 2001. BEDMAP: a new ice thickness and subglacial topographic model of Antarctica. J. Geophys. Res., 106(B6), 11,335-11,351. Rémy, F. and I. E. Tabacco. 2000. Bedrock features and ice flow near the EPICA ice core site (Dome C, Antarctica). Geophys. Res. Lett., 27(3), 405-409. Rémy, F., P. Shaeffer and B. Legrésy. 1999. Ice flow physical processes derived from ERS-1 high-resolution map of Antarctica and Greenland ice sheet. Geophys. J. Int., 139(3), 645-656. Rémy, F., B. Legrésy and L. Testut. 2001. Ice sheet and radar altimetry. Surveys in Geophysics, 22, 1-29. Ritz, C. 1989. Interpretation of the temperature profile measured at Vostok, East Antarctica. Ann. Glaciol., 12, 138-144. Siegert, M. J. and J.K. Ridley. 1998a. An analysis of the ice-sheet surface and subsurface topography above the Vostok Station subglacial lake, central East Antarctica. J. Geophys. Res., 103(B5), 10,195-10,207. Siegert,M. J. and J.K. Ridley. 1998b. Determining basal ice-sheet conditions in the Dome C region of East Antarctica using satellite radar altimetry and airborne radio-echo sounding. J. Glaciol., 44(146), 1-8. Tabacco, I.E., A. Passerini, F. Corbelli and M. Gorman. 1998. Correspondence. Determination of the surface and bed topography at DomeC, East Antarctica. J. Glaciol., 44(146), 185-191. Testut, L., I.E. Tabacco, C. Bianchi and F. Rémy. 2000. Influence of geometrical boundary conditions on the estimation of rheological parameters. Ann. Glaciol., 30, 102-106.en
dc.description.obiettivoSpecifico3.8. Geofisica per l'ambienteen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorRémy, F.en
dc.contributor.authorTestut, L.en
dc.contributor.authorLegrésy, B.en
dc.contributor.authorForieri, A.en
dc.contributor.authorBianchi, C.en
dc.contributor.authorTabacco, I. E.en
dc.contributor.departmentLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.departmentLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.departmentLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, Franceen
dc.contributor.departmentDipartimento di Scienze della Terra, Università degli Studi di Milano, Via Cicognara 7, I-20129 Milan, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentDipartimento di Scienze della Terra, Università degli Studi di Milano, Via Cicognara 7, I-20129 Milan, Italyen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, France-
crisitem.author.deptLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, France-
crisitem.author.deptLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, France-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.orcid0000-0002-0217-5379-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent02. Cryosphere-
crisitem.classification.parent02. Cryosphere-
crisitem.classification.parent02. Cryosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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