Abstract
In elastic full-waveform inversion, the medium parameters are updated iteratively by incrementing them with the derivatives of the misfit functional with respect to each of the medium parameters. The efficient implementation of the derivative computations require large amount of computer memory storage. The large requirements in terms of storage is one the main barriers for the application of elastic full-waveform inversion to large scale 3D problems. In this paper, we propose and test a strategy based on reverse-time wavefield reconstruction using the Kirchhoff integral that effectively reduces the storage requirements, at the cost of a factor of two increase in the computational runtime.
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