Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.790 IF 4.790
  • IF 5-year value: 5.921 IF 5-year
    5.921
  • CiteScore value: 5.27 CiteScore
    5.27
  • SNIP value: 1.551 SNIP 1.551
  • IPP value: 5.08 IPP 5.08
  • SJR value: 3.016 SJR 3.016
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 63 Scimago H
    index 63
  • h5-index value: 51 h5-index 51
Volume 6, issue 5
The Cryosphere, 6, 1187-1201, 2012
https://doi.org/10.5194/tc-6-1187-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Ice-Atmosphere-Ocean interactions in the Arctic Ocean during...

The Cryosphere, 6, 1187-1201, 2012
https://doi.org/10.5194/tc-6-1187-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 24 Oct 2012

Research article | 24 Oct 2012

Sea ice inertial oscillations in the Arctic Basin

F. Gimbert1,3, D. Marsan2, J. Weiss3, N. C. Jourdain4, and B. Barnier4 F. Gimbert et al.
  • 1ISTerre, Université de Grenoble 1, CNRS, UMR5275, 38041 Grenoble, France
  • 2ISTerre, Université de Savoie, CNRS, 73376 Le Bourget-du-Lac, France
  • 3LGGE, Université de Grenoble 1, CNRS, 38041 Grenoble, France
  • 4LEGI, Université de Grenoble 1, CNRS, 38041 Grenoble, France

Abstract. An original method to quantify the amplitude of inertial motion of oceanic and ice drifters, through the introduction of a non-dimensional parameter M defined from a spectral analysis, is presented. A strong seasonal dependence of the magnitude of sea ice inertial oscillations is revealed, in agreement with the corresponding annual cycles of sea ice extent, concentration, thickness, advection velocity, and deformation rates. The spatial pattern of the magnitude of the sea ice inertial oscillations over the Arctic Basin is also in agreement with the sea ice thickness and concentration patterns. This argues for a strong interaction between the magnitude of inertial motion on one hand, the dissipation of energy through mechanical processes, and the cohesiveness of the cover on the other hand. Finally, a significant multi-annual evolution towards greater magnitudes of inertial oscillations in recent years, in both summer and winter, is reported, thus concomitant with reduced sea ice thickness, concentration and spatial extent.

Publications Copernicus
Special issue
Download
Citation
Share