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| | Abstract | | In summer 2013, we carried out the seismic time lapse experiment using a conventional electro-magnetic vibrator in a tuff region by a single source and multi-receivers at fixed locations. We calculated the transfer functions between the source and receivers by receiving geophone records divided by source signatures in spectral domain. Using the subtraction of transfer function each day with 12-hour stack data obtained from the first day of the field test, residual transfer function was generated. We could clearly identify the change of waveforms with time in the residual ones. |
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