Intermittency of principal stress directions within Arctic sea ice
Résumé
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.
Domaines
Glaciologie
Origine : Fichiers éditeurs autorisés sur une archive ouverte