January 1, 2000 Journal article Open Access

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

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{
  "@context": "https://schema.org/", 
  "@id": "https://doi.org/10.3189/172756400781820877", 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Fr\u00e9d\u00e9rique R\u00e9my"
    }, 
    {
      "@type": "Person", 
      "name": "C. Bianchi"
    }, 
    {
      "@type": "Person", 
      "name": "Ignazio E. Tabacco"
    }, 
    {
      "@type": "Person", 
      "name": "Laurent Testut"
    }
  ], 
  "datePublished": "2000-01-01", 
  "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.", 
  "headline": "Influence of geometrical boundary conditions on the estimation of rheological parameters", 
  "identifier": "https://doi.org/10.3189/172756400781820877", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "inLanguage": {
    "@type": "Language", 
    "alternateName": "eng", 
    "name": "English"
  }, 
  "keywords": [
    "NEANIAS Atmospheric Research Community", 
    "Earth-Surface Processes"
  ], 
  "license": "", 
  "name": "Influence of geometrical boundary conditions on the estimation of rheological parameters", 
  "url": "https://www.openaccessrepository.it/record/121927"
}