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Asymptotic Theories of Ice Sheets and Ice Shelves

  • D.R. Baral
  • K. Hutter
Chapter
Part of the Lecture Notes in Physics book series (LNP, volume 582)

Abstract

In climate dynamics of the Globe the atmosphere, hydrosphere and cryosphere interplay with one another with various different time scales, typically from years to several millennia. Ice sheets and ice shelves, which are the grounded and floating components of the large ice masses such as Greenland and Antarctica and the former Fennoscandinavian and Laurentide ice sheets are those subsystems of the geosphere, which respond to and interplay with climate variations with periods of 103 to 105 years. 100000 years ago the amount of water bound in solid ice was so large that the ocean surface was about 120–150 m below its present level; alternatively, the complete melting of the Greenland ice sheet or Antarctica under a future Greenhouse scenario would raise the ocean surface by approximately 7 and 65 m, respectively. Because the socio-economic impact of the sea level rise due to an increase of the mean temperature of the Earth’s surface is immense, it is absolutely vital that the nourishment and wastage of the large ice masses are properly understood and transformed into sea level status. This requires careful computation of the flow, phase change mechanisms as well as geometric evolution of such ice masses.

Keywords

Free Surface Stress Deviator Asymptotic Theory Kinematic Boundary Condition Shear Traction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    D.R. Baral: Asymptotic theories of large scale motion, temperature and moisture distributions in land based polythermal ice shields and in floating ice shelves: A critical review and new development. Doctoral Dissertation, Department of Mechanics, Darmstadt University of Technology (1999)Google Scholar
  2. 2.
    D.R. Baral, K. Hutter, R. Greve: Asymptotic theories of large scale motion, temperature and moisture distributions in land based polythermal ice sheets. A critical review and new development. Applied Mechanics Reviews, in pressGoogle Scholar
  3. 3.
    D.R. Baral, K. Hutter: ‘An iterative solution procedure for shallow Stokes flows. The shallow ice Approximation revisited’. In: Advances in Cold-Region Thermal Engineering and Sciences, ed. by K. Hutter, Y. Wang, H. Beer. Lecture Notes in Physics No 533, (Springer Verlag, Berlin, Hydelberg, New York 1999)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • D.R. Baral
    • 1
  • K. Hutter
    • 1
  1. 1.Institute of MechanicsDarmstadt University of TechnologyDarmstadtGermany

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