Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4179
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dc.contributor.authorallTestut, L.; UMR5566, Groupe de Recherche de Géodésie Spatiale, CNES-CNRS, Toulouse Cedex 31055, Franceen
dc.contributor.authorallTabacco, I. E.; Dipartimento di Scienze della Terra, Università degli Studi di Milano, I-20129 Milan, Italyen
dc.contributor.authorallBianchi, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallRémy, F.; UMR5566, Groupe de Recherche de Géodésie Spatiale, CNES-CNRS, Toulouse Cedex 31055, Franceen
dc.date.accessioned2008-11-19T14:30:02Zen
dc.date.available2008-11-19T14:30:02Zen
dc.date.issued2000en
dc.identifier.urihttp://hdl.handle.net/2122/4179en
dc.description.abstractImproved knowledge of geometrical boundary conditions, such as bedrock geometry and surface topography, can contribute significantly to glaciological studies including ice-sheet-flow modelling. Precise thickness and altimetric data allow an estimation of ice-flow direction, the balance velocity and the basal shear stress. These parameters are calculated along a 1160 km profile in East Antarctica using a relationship between shear stress, basal temperature, the Glen flow exponent and a parameter related to strain rate. Strong variations of the flow-law parameters and basal conditions are found to play a major role in the ice-flow pattern. Sliding, anisotropy and longitudinal stress strongly perturb the validity of the law, but their signature can be identified.en
dc.language.isoEnglishen
dc.publisher.nameInternational Glaciological Societyen
dc.relation.ispartofAnnals of Glaciologyen
dc.relation.ispartofseries/ 30 (2000)en
dc.subjectIce sheeten
dc.subjectMass balanceen
dc.subjectBedrock-topographyen
dc.titleInfluence of geometrical boundary conditions on the estimation of rheological parametersen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber102-106en
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.description.obiettivoSpecifico3.8. Geofisica per l'ambienteen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorTestut, L.en
dc.contributor.authorTabacco, I. E.en
dc.contributor.authorBianchi, C.en
dc.contributor.authorRémy, F.en
dc.contributor.departmentUMR5566, Groupe de Recherche de Géodésie Spatiale, CNES-CNRS, Toulouse Cedex 31055, Franceen
dc.contributor.departmentDipartimento di Scienze della Terra, Università degli Studi di Milano, I-20129 Milan, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentUMR5566, Groupe de Recherche de Géodésie Spatiale, CNES-CNRS, Toulouse Cedex 31055, Franceen
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.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptLaboratoire d’Etudes en Géophysique et Océanographie Spatiale, 18 avenue Edouard Belin, 31055 Toulouse Cedex, France-
crisitem.author.orcid0000-0002-0217-5379-
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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