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    Force budget: I. Theory and numerical methods

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    VanderveenC_JG_35(119)53.pdf (657.6Kb)
    Issue Date
    1989-10-05
    Author
    van der Veen, Cornelis J.
    Whillans, I. M.
    Publisher
    International Glaciological Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    A practical method is developed for calculating stresses and velocities at depth using field measurements of the geometry and surface velocity of glaciers. To do this, it is convenient to partition full stresses into lithostatic and resistive components. The horizontal gradient in vertically integrated lithostatic stress is the driving stress and it describes the horizontal action of gravity. The horizontal resistive stress gradients describe the reactions. Resistive stresses are simply related to deviatoric stresses and hence to strain-rates through a constitutive relation.

    A numerical scheme can be used to calculate stresses and velocities from surface velocities and slope, and from ice thickness. There is no mathematical requirement that the variations in these quantities be small.
    Description
    This is the published version, also available here: http://dx.doi.org/10.3189/002214389793701581.
    URI
    http://hdl.handle.net/1808/17349
    DOI
    https://doi.org/10.3189/002214389793701581
    Collections
    • Geography & Atmospheric Science Scholarly Works [199]
    Citation
    Van Der Veen, C. J. & Whillans, I. M. "Force budget: I. Theory and numerical methods." Journal of Glaciology, Number 119, 1989, pp. 53-60(8). http://dx.doi.org/10.3189/002214389793701581.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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