By Jerome Weiss

Sea ice is a huge section of polar environments, particularly within the Arctic the place it covers the total Arctic Ocean all through many of the yr. even if, within the context of weather swap, the Arctic sea ice hide has been declining considerably during the last many years, both when it comes to its focus or thickness. the ocean ice hide evolution and weather switch are strongly coupled in the course of the albedo optimistic suggestions, hence in all likelihood explaining the Arctic amplification of weather warming. as well as thermodynamics, sea ice kinematics (drift, deformation) seems as a necessary think about the evolution of the ice conceal via a discount of the common ice age (and as a result of the cover's thickness), or ice export out of the Arctic. this can be a first motivation for a greater figuring out of the kinematical and mechanical tactics of sea ice. A extra upstream, theoretical motivation is a greater knowing of the brittle deformation of geophysical gadgets throughout a variety of scales. certainly, because of its very powerful kinematics, in comparison e.g. to the Earth’s crust, an unmatched kinematical info set is accessible for sea ice from in situ (e.g. drifting buoys) or satellite tv for pc observations. the following, we evaluate the new advances within the realizing of sea ice waft, deformation and fracturing received from those info. We concentration rather at the scaling homes in time and scale that symbolize those methods, and we emphasize the analogies that may be drawn from the deformation of the Earth’s crust. those scaling homes, that are the signature of long-range elastic interactions in the hide, constrain destiny advancements within the modeling of sea ice mechanics. We additionally express that kinematical and rheological variables comparable to standard speed, standard strain-rate or energy have considerably replaced over the past many years, accompanying and really accelerating the Arctic sea ice decline.

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Drift, Deformation, and Fracture of Sea Ice: A Perspective Across Scales (SpringerBriefs in Earth Sciences) by Jerome Weiss


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