Intermittency of principal stress directions within Arctic sea ice.
The brittle deformation of Arctic sea ice is not only characterized by strong spatial heterogeneity as well as intermittency of stress and strain-rate amplitudes, but also by an intermittency of principal stress directions, with power law statistics of angular fluctuations, long-range correlations in time, and multifractal scaling. This intermittency is much more pronounced than that of wind directions, i.e., is not a direct inheritance of the turbulent forcing.
Weiss
Jérôme
J
Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS, 54 rue Molière, BP 96, 38402 St Martin d'Hères Cedex, France.