2D synthetic tests

This section presents 2D test results for a zero-offset overturning wavefield and the prestack Pluto and BP velocity benchmark Billette and Brandsberg-Dahl (2005) data sets. We propagate all wavefields with the isotropic one-way extrapolator described in Lee and Suh (1985) on a elliptic coordinate system defined by equation 3 assuming effective slowness fields of $A(\xi_1,\xi_3) s(\xi_1,\xi_3)$ where stretch factor A is defined above. We use generic zero-offset and shot profile migration algorithms employing the extrapolation wavenumber in equation 7 and then transform the results back to Cartesian using sinc-interpolation.
 

• Poststack migration of overturning waves
• Prestack Pluto 1.5
• Prestack BP Velocity Model
• Discussion