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Scaling Aspects of the Sea-ice-drift Dynamics and Pack Fracture : Volume 4, Issue 1 (30/01/2007)

By Chmel, A.

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Book Id: WPLBN0004020988
Format Type: PDF Article :
File Size: Pages 22
Reproduction Date: 2015

Title: Scaling Aspects of the Sea-ice-drift Dynamics and Pack Fracture : Volume 4, Issue 1 (30/01/2007)  
Author: Chmel, A.
Volume: Vol. 4, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Panov, L. V., Smirnov, V. N., & Chmel, A. (2007). Scaling Aspects of the Sea-ice-drift Dynamics and Pack Fracture : Volume 4, Issue 1 (30/01/2007). Retrieved from

Description: Fracture Physics Department, Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia. A study of the sea-ice dynamics in the periods of time prior to and during the cycles of basin-wide fragmentation of the ice cover in the Arctic Ocean is presented. The fractal geometry of the ice-sheets limited by leads and ridges was assessed using the satellite images, while the data on the correlated sea-ice motion were obtained in the research stations North Pole 32 and North Pole 33 established on the ice pack. The revealed decrease of the fractal dimension as a result of large-scale fragmentation is consistent with the localization of the fracture process (leads propagation). At the same time, the scaling properties of the distribution of amplitudes of ice-fields accelerations were insensitive to the event of sea-ice fragmentation. The temporal distribution of the accelerations was scale-invariant during quiet periods of sea-ice drift but disordered in the period of mechanical perturbation. The period of decorrelated (in time) ice-field motion during the important fracture event was interpreted as an inter-level transition in the hierarchic dynamical system. The mechanism of the long-range correlations in the sea-ice cover, including the fracture process, is suggested to be in relation with the self-organized oscillation dynamics inherent in the ice pack.

Scaling aspects of the sea-ice-drift dynamics and pack fracture

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