用H/V谱比法计算云南区域数字地震台站的场地响应
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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。
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 station.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.
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 station.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.
引文
高立新,郑斯华.2005.内蒙古中西部地区震源参数和场地响应反演[J].西北地震学报,27(2):110-114.
黄玉龙,郑斯华,刘杰,等.2003.广东地区地震动衰减和场地响应的研究[J].地球物理学报,46(1):54-61.
李祖宁,周峥嵘.2005.利用数字地震台网资料联合反演福建地区Q值、场地响应和震源参数[J].地震地质,27(3):437-445.
刘丽芳,苏有锦,刘杰,等.2007.利用Moya方法反演云南数字地震台站场地响应[J].地震研究,30(1):39-42.
马淑芹,龚绍京,栗连弟.2001.使用单台三分向地震记录资料评估场地效应方法的研究[J].西北地震学报,23(3):269-273.
苏有锦,刘杰,郑斯华,等.2006.云南地区S波非弹性衰减Q值研究[J].地震学报,(28)2:206-212.
叶建庆.1997.云南地球物理文集(二)[M].昆明:云南大学出版社.
叶建庆.1998.丽江地震场地响应分析研究[J].地震研究,21(2):115-121.
Chael E.1987.Spectral scaling of earthquakes in the Miramichi region ofNew Brunswick[J].BSSA.77(2):347-365.
Javier L.1993.Site effect evaluation using spectral ratios with only onestation[J].BSSA,83(5):1574-1594.
Moya A A.2000.Inversion of source parameters and site effects fromstrong ground motion records using genetic algorithms[J].BSSA,90(4):977-992.
Nakamura Y.1989.A method for dynamic characteristics estimation ofsubsurface using microtremor on the ground surface[J].QR ofRTR1,30(1):25-33.
Theodulidis N.1996.Horizontal to Vertical Spectral Ratio and Geolog-ical Conditions:the Case of Garner Valley Downhole Array inSouthern California[J].BSSA,86(2):306-319.
Zakaria A Y and Francisco L.2000.On the Horizontal to Vertical Spec-tral Ratio in Sedimentary Basins[J].BSSA,90(4):1101-1106.
黄玉龙,郑斯华,刘杰,等.2003.广东地区地震动衰减和场地响应的研究[J].地球物理学报,46(1):54-61.
李祖宁,周峥嵘.2005.利用数字地震台网资料联合反演福建地区Q值、场地响应和震源参数[J].地震地质,27(3):437-445.
刘丽芳,苏有锦,刘杰,等.2007.利用Moya方法反演云南数字地震台站场地响应[J].地震研究,30(1):39-42.
马淑芹,龚绍京,栗连弟.2001.使用单台三分向地震记录资料评估场地效应方法的研究[J].西北地震学报,23(3):269-273.
苏有锦,刘杰,郑斯华,等.2006.云南地区S波非弹性衰减Q值研究[J].地震学报,(28)2:206-212.
叶建庆.1997.云南地球物理文集(二)[M].昆明:云南大学出版社.
叶建庆.1998.丽江地震场地响应分析研究[J].地震研究,21(2):115-121.
Chael E.1987.Spectral scaling of earthquakes in the Miramichi region ofNew Brunswick[J].BSSA.77(2):347-365.
Javier L.1993.Site effect evaluation using spectral ratios with only onestation[J].BSSA,83(5):1574-1594.
Moya A A.2000.Inversion of source parameters and site effects fromstrong ground motion records using genetic algorithms[J].BSSA,90(4):977-992.
Nakamura Y.1989.A method for dynamic characteristics estimation ofsubsurface using microtremor on the ground surface[J].QR ofRTR1,30(1):25-33.
Theodulidis N.1996.Horizontal to Vertical Spectral Ratio and Geolog-ical Conditions:the Case of Garner Valley Downhole Array inSouthern California[J].BSSA,86(2):306-319.
Zakaria A Y and Francisco L.2000.On the Horizontal to Vertical Spec-tral Ratio in Sedimentary Basins[J].BSSA,90(4):1101-1106.
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