Source signature and elastic waves in a half-space under a momentary shear line impulse

2003 ◽  
Vol 27 (3) ◽  
pp. 233-258 ◽  
Author(s):  
Moche Ziv
Keyword(s):  
Half Space ◽  
Elastic Waves ◽  
Shear Line

scholarly journals The influence of closed brine pockets and permeable brine channels on the thermo-elastic properties of saline ice

2017 ◽  
Vol 375 (2086) ◽  
pp. 20150351 ◽  
Author(s):  
Aleksey Marchenko ◽  
Ben Lishman
Keyword(s):  
Experimental Data ◽  
Thermal Expansion ◽  
Half Space ◽  
Elastic Properties ◽  
Elastic Waves ◽  
Elastic Behaviour ◽  
Model Solutions ◽  
Data Support ◽  
University College London ◽  
The University

A model of the thermo-elastic behaviour of saline ice is formulated, and model solutions describing thermo-elastic waves (TEW) propagating into a half-space of the ice are investigated. The model is based on a proposal that saline ice is a matrix, which encompasses both closed brine pockets and permeable channels filled with brine. Experiments on the thermal expansion of saline ice samples, and on TEW in saline ice, have been performed in the cold laboratories of the University Centre in Svalbard and in University College London. The experimental data are compared with theoretical conclusions. The experimental data support our hypothesis that the brine in saline ice is divided between closed pockets and open, permeable channels. This article is part of the themed issue ‘Microdynamics of ice’.

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