Kinematics of 2D multiples in image space

In this section I give the equations that map first-order water-bottom multiple reflections from data space (CMP gathers) to image space (SODCIGs and ADCIGs) and study in detail the special case of a specular multiple from a flat water-bottom. The equation that I derive for the residual moveout of the multiples in ADCIGs for this special case will be the basis for the attenuation of the multiples in the Radon domain. () gives parametric equations for other simple cases: specular multiple from a dipping water-bottom and diffracted multiples from flat and dipping water-bottom.