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The traditional boundary condition for the source wavefield extrapolation with the one-way wave equation
Claerbout (1985) can be written as follows:

| |
(1) |

where is the source wavefield at the surface, is the wavelet, and is an impulse at the shot position . Although kinematically correct, Claerbout's scheme fails to provide the correct wavefield amplitudes.

Stanford Exploration Project

5/23/2004