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Conventional seismic migration operators produce an image that suffers from low resolution, sampling artifacts, and poorly balanced amplitudes. An improved image can be obtained by casting migration as a least-squares optimization problem in which the goal is to minimize the difference between...
In recent times, there has been increased seismicity in geologically stable basins in North America, thought to be associated with hydraulic fracturing and/or waste water disposal activities. Induced events could generate a seismic hazard higher than natural seismicity, particularly in areas...
The earth’s crust and mantle is known to be anisotropic to the propagation of seismic waves. Despite this knowledge, the analysis and processing of seismic data still primarily assumes isotropy, an assumption that, in the context of active source seismic imaging, is an oversimplification that can...