Patent ID: 8441890

Claim:
A method for processing geophysical data, comprising: applying, by a computer, a first interferometry on an estimate of a direct ground roll between a receiver location and one or more boundary source locations and an estimate of a direct ground roll between one or more boundary receiver locations and the one or more boundary source locations to generate an interferometric estimate of a direct ground roll between the receiver location and the one or more boundary receiver locations; applying, by the computer, a second interferometry on geophysical data between a source location and the one or more boundary receiver locations and the interferometric estimate of the direct ground roll to generate an interferometric estimate of a direct and scattered ground roll between the source location and the receiver location; and removing, by the computer, the interferometric estimate of the direct and scattered ground roll between the source location and the receiver location from geophysical data acquired at the receiver location due to a source at the source location.