学术
用H／V谱比法计算云南区域数字地震台站的场地响应
朱荣欢[1] 苏有锦[2,3]
[1]云南大学地球物理系,昆明650091 [2]中国科学技术大学地球和空间科学学院,合肥230026 [3]云南省地震局,昆明650224
摘 要:
用H／V谱比法，计算给出了云南区域数字地震台网23个子台S波随频率变化的台站场地响应特征。结果表明：在1～10Hz频段内，23个子台S波的场地响应相对较平坦，在1．41～2．91之间变化，平均2．08；在大于10Hz的高频段，部分台站的场地响应有较明显的放大。[著者文摘]
文章出处:
《地震研究》-2007年30卷3期 -248-252页
分 类 号:
文献标识码:
A
文章编号:
1000-0666-（2007）03-0248-05
Site Response of Yunnan Regional Digital Seismic Stations Calculated with H/V Spectral Ratios Method
ZHU Rong-huan,SU You-jin （1. Department of Geophysics, Yunnan University, Kunming 650091, Yunnan, China;2. School of Earth and Space Sciences, University of Science and Technology, Hefei 230026, Anhui, China ; 3. Earthquake Administration of Yunnan Province, Kunming 650224, Yunnan, China）
Abstract:
To learn the site response characteristics at 23 stations of Yunnan Regional Digital Seismic Network, we used H/V spectral ratios method to calculate the site response changing with the frequency of S-wave at each sta- tion. The result indicates that the S-wave site response is relatively smooth in the frequency of 1 - 10 Hz, varies between 1. 41 and 2.91, and the average is 2.08. However, the site responses of some stations are obviously magnified in the high-frequency segment more than 10 Hz.[著者文摘]
Key words:
digital seismic station, site response, seismic spectral ratio, Yunnan
基金资助:
云南省“十五”重点项目“云南地震预测预报实用化技术系统”资助.
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