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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Discrete-element models of sea ice dynamics and fracture
Discrete-element models of sea ice dynamics and fractureAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact INI IT. SIPW01 - Multi-scale modelling of ice characteristics and behaviour At geophysical scales, continuum models provide established and computationally efficient tools for simulating sea ice dynamics and thermodynamics. In recent years, rapidly increasing computational power and availability of high-resolution (esp. remote-sensing) data have contributed to a revival of discrete-element methods (DEM), enabling the analysis of sea ice at smaller spatial and temporal scales. Treating sea ice as a collection of individual, interacting floes, and thus recognizing it as an example of a granular material, opens a wide range of new tools and analysis possibilities for sea ice research. Bonded-particle DEM models enable to simulate brittle fragmentation of sea ice – a process that, in spite of substantial progress in recent years, still poses problems for continuum models. Moreover, there is growing evidence that the size distribution of sea ice floes has a substantial influence on a wide range of processes in the upper ocean, lower atmosphere and within sea ice itself, and it is in turn shaped by those processes. By directly taking into account fragmentation (i.e., floe formation) and dynamics of individual floes, DEMs provide tools to better understand complex interactions between sea ice, ocean and atmosphere acting at the floe-level. This talk is part of the Isaac Newton Institute Seminar Series series. This talk is included in these lists:
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