Translations:Instantaneous attributes - book/23/en

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How is angular information displayed? Angular information is encoded in instantaneous phase lead and in instantaneous frequency. At a given instant, instantaneous amplitude is the maximum value the seismic trace can attain under a constant phase rotation, and instantaneous phase lead is the phase angle required to rotate the trace to that maximum (Barnes, 2007[1]). These two attributes represent the hard-to-define entity known as seismic character. In particular, these two attributes indicate bed continuity, event terminations, and unconformity surfaces. They can be used in mapping wavelet variations and thin-bed interference patterns.

  1. Barnes, A. E., 2007, A tutorial on complex seismic trace analysis: Geophysics, 72, no. 6, W33–W43.