[PDF][PDF] Low-frequency behavior of coherency for strong ground motions in Mexico City and Japan
S Santa-Cruz, E Heredia-Zavoni… - 12th world conference …, 2000 - academia.edu
S Santa-Cruz, E Heredia-Zavoni, RS Harichandran
12th world conference on earthquake engineering, Auckland, New Zealand …, 2000•academia.eduThe behavior of earthquake ground motion at low frequencies is studied and the adequacy
of different models in representing the low frequency coherency variation is discussed.
Acceleration records from four events recorded by seismic arrays in the valley of Mexico and
at the Chiba experimental station in Japan are analyzed. Reliable estimates of coherency at
very low frequencies can be obtained due to the length of the records. Estimated coherency
functions are compared with several models proposed by various investigators.
of different models in representing the low frequency coherency variation is discussed.
Acceleration records from four events recorded by seismic arrays in the valley of Mexico and
at the Chiba experimental station in Japan are analyzed. Reliable estimates of coherency at
very low frequencies can be obtained due to the length of the records. Estimated coherency
functions are compared with several models proposed by various investigators.
Summary
The behavior of earthquake ground motion at low frequencies is studied and the adequacy of different models in representing the low frequency coherency variation is discussed. Acceleration records from four events recorded by seismic arrays in the valley of Mexico and at the Chiba experimental station in Japan are analyzed. Reliable estimates of coherency at very low frequencies can be obtained due to the length of the records. Estimated coherency functions are compared with several models proposed by various investigators.
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