A Two-Dimensional Amplitude Study of True-Amplitude Time Migration and Time Remigration – 2.5-D Synthetic Examples

In this synthetic study, we present semi-automatically picked true-amplitude comparisons after time migration and time remigration (Tygel et al.,1996; and Oliveira et al.,2023). Since the examples considered are synthetic, emphasis is put on the generally disregarded dimensional aspects of the amplitudes that are modeled to simulate compressional-only seismic data when using a Kirchhoff a p proximation. By bearing in mind in this work that theoretical amplitudes work as “densities”, we show that when comparisons of true-amplitude weighted diffraction-stack time migration and weighted isochrone-stack time remigration are performed, in order to “correct” the dimensions involved certain multiplicative physical constants must come into play and that must be effectively dealt with, for plotting reasons.