Электронный архив

Просмотр по автору "Feltham D."

Просмотр по автору "Feltham D."

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  • A continuum anisotropic model of sea-ice dynamics 
    Wilchinsky A.; Feltham D. (2004)
    We develop the essential ingredients of a new, continuum and anisotropic model of sea-ice dynamics designed for eventual use in climate simulation. These ingredients are a constitutive law for sea-ice stress, relating ...
  • A multithickness sea ice model accounting for sliding friction 
    Wilchinsky A.; Feltham D.; Miller P. (2006)
    A multithickness sea ice model explicitly accounting for the ridging and sliding friction contributions to sea ice stress is developed. Both ridging and sliding contributions depend on the deformation type through functions ...
  • Anisotropic model for granulated sea ice dynamics 
    Wilchinsky A.; Feltham D. (2006)
    A continuum model describing sea ice as a layer of granulated thick ice, consisting of many rigid, brittle floes, intersected by long and narrow regions of thinner ice, known as leads, is developed. We consider the evolution ...
  • Dependence of sea ice yield-curve shape on ice thickness 
    Wilchinsky A.; Feltham D. (2004)
    In this note, the authors discuss the contribution that frictional sliding of ice floes (or floe aggregates) past each other and pressure ridging make to the plastic yield curve of sea ice. Using results from a previous ...
  • Modelling the rheology of sea ice as a collection of diamond-shaped floes 
    Wilchinsky A.; Feltham D. (2006)
    In polar oceans, seawater freezes to form a layer of sea ice of several metres thickness that can cover up to 8% of the Earth's surface. The modelled sea ice cover state is described by thickness and orientational distribution ...
  • Stability of an ice sheet on an elastic bed 
    Wilchinsky A.; Feltham D. (2004)
    The stability of stationary flow of a two-dimensional ice sheet is studied when the ice obeys a power flow law (Glen's flow law). The mass accumulation rate at the top is assumed to depend on elevation and span and the bed ...
  • The effect of a new drag-law parameterization on ice shelf water plume dynamics 
    Wilchinsky A.; Feltham D.; Holland P. (2007)
    A drag law accounting for Ekman rotation adjacent to a flat, horizontal boundary is proposed for use in a plume model that is written in terms of the depth-mean velocity. The drag law contains a variable turning angle ...

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