000 03825nam a22005297a 4500
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020 _a9789400762022
_9978-94-007-6202-2
024 7 _a10.1007/978-94-007-6202-2
_2doi
050 4 _aQC801-809
072 7 _aPHVG
_2bicssc
072 7 _aSCI032000
_2bisacsh
082 0 4 _a550
_223
082 0 4 _a526.1
_223
100 1 _aWeiss, Jérôme.
_eauthor.
245 1 0 _aDrift, Deformation, and Fracture of Sea Ice
_h[electronic resource] :
_bA Perspective Across Scales /
_cby Jérôme Weiss.
264 1 _aDordrecht :
_bSpringer Netherlands :
_bImprint: Springer,
_c2013.
300 _aXVI, 83 p. 34 illus., 19 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringerBriefs in Earth Sciences,
_x2191-5369
505 0 _aSea ice drift -- Sea ice deformation -- Sea ice fracturing -- Recent evolution of sea ice kinematics and rheology -- Modeling of sea ice rheology and deformation.
520 _aSea ice is a major component of polar environments, especially in the Arctic where it covers the entire Arctic Ocean during most of the year. However, in a context of climate change, the Arctic sea ice cover has been declining significantly over the last decades, either in terms of concentration or thickness. The sea ice cover evolution and climate change are strongly coupled through the albedo positive feedback, thus possibly explaining the Arctic amplification of climate warming. In addition to thermodynamics, sea ice kinematics (drift, deformation) appears as an essential player in the evolution of the ice cover through a reduction of the average ice age (and so of thickness), or ice export out of the Arctic. This is a first motivation for a better understanding of kinematical and mechanical processes of sea ice. A more upstream, theoretical motivation is a better understanding of brittle deformation of geophysical objects across a wide range of scales. Indeed, owing to its very strong kinematics, compared e.g. to the Earth’s crust, an unrivaled kinematical dataset is available for sea ice from in-situ (e.g. drifting buoys) or satellite observations. Here we review recent advances on the understanding of sea ice drift, deformation and fracturing obtained from these data. We particularly focus on the scaling properties in time and scale that characterize these processes, and we emphasize the analogies that can be drawn with the deformation of the Earth’s crust. These scaling properties, which are the signature of long-range elastic interactions within the cover, constrain future developments in the modeling of sea ice mechanics. We also show that kinematical and rheological variables such as average velocity, average strain-rate or strength have significantly changed over the last decades, accompanying and actually strengthening the Arctic sea ice decline.
650 0 _aEarth sciences.
650 0 _aGeophysics.
650 0 _aOceanography.
650 0 _aPhysical geography.
650 0 _aEnvironmental sciences.
650 1 4 _aEarth Sciences.
650 2 4 _aGeophysics/Geodesy.
650 2 4 _aOceanography.
650 2 4 _aEnvironmental Physics.
650 2 4 _aEarth System Sciences.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9789400762015
830 0 _aSpringerBriefs in Earth Sciences,
_x2191-5369
856 4 0 _uhttp://dx.doi.org/10.1007/978-94-007-6202-2
912 _aZDB-2-EES
942 _2Dewey Decimal Classification
_ceBooks
999 _c48799
_d48799