Abstract

Magnetotelluric (MT) data naturally manifests itself as noise in marine controlled‐source electromagnetic (CSEM) data. It follows that MT data can be extracted from measured CSEM data for the relatively negligible cost of additional data processing. With availability of both data sets, we present a new approach to 3D joint inversion of both CSEM and MT data. Our method is based on the 3D integral equation method for modeling, and focusing regularized inversion. Our examples show that joint CSEM and MT inversion has better model resolution compared to CSEM or MT inversion alone.

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