Title :
Coupling and propagation of elastic waves in Artic pack ice
Author :
Jarvis, Susan M. ; Santos, Gerald M. ; Stein, Peter J. ; Euerle, Steven E.
Author_Institution :
Naval Undersea Warfare Centre Div., Newport, RI, USA
Abstract :
Acoustic sources under Arctic pack ice give rise to vibratory motion that travels in the ice sheet. These in-ice vibrations are detectable and can be used to localize the under-ice sources. This paper presents analysis of data from geophone and hydrophone arrays deployed during ICEX-I-90. Addressed are basic issues relating to the behavior of the waves. Primary interest was placed on characterizing the coupling of the acoustic sources into the different modes of ice vibrations, and on examining the propagation behavior of the dominant modes
Keywords :
elastic waves; oceanographic regions; sea ice; seismic waves; seismology; underwater sound; Arctic Ocean; ICEX-I-90; acoustic source localization; acoustic wave propagation; acoustics; elastic wave coupling; ice vibration mode; in-ice vibration; pack ice; propagation; sea ice; seismic wave; seismology; underwater sound; vibratory motion; Acoustic propagation; Acoustic signal detection; Acoustic waves; Apertures; Arctic; Data analysis; Frequency; Ice; Phased arrays; Sonar equipment;
Conference_Titel :
OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings
Conference_Location :
Brest
Print_ISBN :
0-7803-2056-5
DOI :
10.1109/OCEANS.1994.364267
