JI Ai-dong, LIU Xi-qiang, ZHAO Ying-ping, ZHAO Jin-hua, ZHOU Yan-wen. THE ATTENUATION FEATURE OF QC VALUE FROM CODA WAVE IN SHANDONG AREA[J]. North China Earthquake Sciences, 2008, 26(1): 8-12.
Citation: JI Ai-dong, LIU Xi-qiang, ZHAO Ying-ping, ZHAO Jin-hua, ZHOU Yan-wen. THE ATTENUATION FEATURE OF QC VALUE FROM CODA WAVE IN SHANDONG AREA[J]. North China Earthquake Sciences, 2008, 26(1): 8-12.
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THE ATTENUATION FEATURE OF QC VALUE FROM CODA WAVE IN SHANDONG AREA

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    • Abstract
  • Based on the digital waveform data recorded by Shandong Digital Seismic Network, the Qc values of coda wave in 13 frequency bands in Shandong area are calculated with single scattering model.The results show that the variation of Qc with frequency obeys approximately power function Qc=Q0fη in the range of 1.0-20Hz(short cycle) and 0.05-20Hz(wide-band), and it is determined as Qc(f)=118.7±26.8f0.94±0.14 through fitting.The longer the time, the bigger the Qc value.
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