地震学报Issue(1)：103-110,8.DOI:10.11939/jass.2016.01.010
浙江地区 Lg 波路径衰减关系及台站场地响应参数
Lg-wave attenuation relationship and site response of stations in Zhejiang area
摘要
Abstract
Based on the spectral ratio data,the Lg-wave attenuation relationship along a specific path across Taiwan Strait and the site response from 36 stations in Zhejiang area were calculated by using the joint inversion method of field response and the path attenuation.We used the data of 355 MS ≥4.0 earth-quakes during the period of 2007—2012,which were recorded by Zhejiang digi-tal seismic network in Taiwan region.During the calculation process,the data in the frequency range of 1—7 Hz were selected with the interval of 0.2 Hz. The attenuation relationships areγUD (f )=0.005 5f 0.94 ,γNS (f )=0.006 4f 1 .11 andγEW (f)=0.004 8f 0.90 in U--D,N--S and E--W direction.The site response at high-frequency end of Qingyuan station showed an obvious amplification effect,meanwhile,the site response of the other 35 stations are nearly equal without obvious direction characteristic.Furthermore,the abnormal results were analyzed and verified,suggesting the results in this paper be correct and reliable.关键词
Lg 波/场地响应/路径衰减/联合反演/波谱Key words
Lg wave/site response/path attenuation/joint inversion/spectrum分类
天文与地球科学引用本文复制引用
于俊谊,朱新运..浙江地区 Lg 波路径衰减关系及台站场地响应参数[J].地震学报,2016,(1):103-110,8.基金项目
中国地震局星火计划攻关项目（XH12023）和测震台网青年骨干培养专项（20130207）共同资助． （）
