PREDOMINANT FREQUENCIES IN THE SPECTRUM OF ICE-VIBRATION EVENTS

Marek GQRSKI

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PREDOMINANT FREQUENCIES IN THE SPECTRUM OF ICE-VIBRATION EVENTS

机译：震动事件频谱中的主要频率

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Examples of ice-vibrations recorded in the Hans Glacier (South Spitsber-gen) in spring-summer 2002, and in the Pasterze Glacier (Alps) in the fall of 2003 have been analysed. The spectral analysis of the recorded vibrations reveals a relationship between the period of vibrations and the scale of dynamic proc-esses in a given glacier. Predominant frequency of ice-vibrations recorded in the Pasterze Glacier is higher than that of the events in the Hans Glacier, where the scale of dynamic processes in much greater. The presented spectra of the ice-vibration seismic events display characteristic frequency maxima related to the scale of dynamic processes taking place within a given glacier.

机译：分析了2002年春夏在汉斯冰川（南斯皮茨伯根）和2003年秋在巴斯德冰川（阿尔卑斯山）记录的冰振动实例。记录的振动的频谱分析揭示了给定冰川的振动周期与动态过程规模之间的关系。在Pasterze冰川中记录的主要冰振动频率高于在Hans冰川中的动态过程，后者的动态过程规模要大得多。所呈现的冰振动地震事件谱显示了与给定冰川内发生的动态过程的规模有关的特征频率最大值。

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来源
《Acta Geophysica Polonica》 |2004年第4期|p.457-464|共8页
作者
Marek GQRSKI;
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作者单位

Institute of Geophysics, Polish Academy of Sciences ul. Ksiecia Janusza 64,01-462 Warszawa, Poland;

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原文格式 PDF
正文语种 eng
中图分类地球物理学;
关键词
glacier seismicity; icequakes; ice vibrations;

机译：冰川地震活动;地震;冰振动;

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PREDOMINANT FREQUENCIES IN THE SPECTRUM OF ICE-VIBRATION EVENTS

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