期刊
9TH INTERNATIONAL CONFERENCE ON PHYSICS AND ITS APPLICATIONS (ICOPIA)
卷 1153, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1742-6596/1153/1/012029
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In this part we discussed field example of SH wave data recorded using horizontal component of the three-component geophone that might represent characteristic of the inversely dispersive medium. Extraction of the SH wavefield data, both for north-and south-source impact, using tau-pi transform showed increasing phase-velocity dispersion with the frequencies. Such patterns of effective dispersion curves illustrated the nature of the inversely dispersive medium. Inversions of the dispersion curves were carried out by utilizing a series of Love wave inversion approaches. These approaches included forward modelling of Love wave dispersion curve by full SH-wavefield method and partial derivatives of the Love wave phase velocity. The inversion procedures utilized a linearized inversion of Occam's algorithm. Inversions of the Love wave real data, both for north-and south-source impact, confirm the presence of an inversely dispersive medium.
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