January 1, 2000 Journal article Open Access

Frédérique Rémy; C. Bianchi; Ignazio E. Tabacco; Laurent Testut

Dublin Core Export

<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Frédérique Rémy</dc:creator>
  <dc:creator>C. Bianchi</dc:creator>
  <dc:creator>Ignazio E. Tabacco</dc:creator>
  <dc:creator>Laurent Testut</dc:creator>
  <dc:date>2000-01-01</dc:date>
  <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.</dc:description>
  <dc:identifier>https://www.openaccessrepository.it/record/121927</dc:identifier>
  <dc:identifier>10.3189/172756400781820877</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>url:https://www.openaccessrepository.it/communities/itmirror</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:subject>NEANIAS Atmospheric Research Community</dc:subject>
  <dc:subject>Earth-Surface Processes</dc:subject>
  <dc:title>Influence of geometrical boundary conditions on the estimation of rheological parameters</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>