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2008•Russian Geology and GeophysicsRequires access

Nonlocal magnetotelluric responses of a 3D inhomogeneous Earth: processing regional data

V.V. Plotkin, A.Yu. Belinskaya, P.A. Gavrysh, A. I. Gubanov

Open publisher page 7 citations

Abstract

Abstract Magnetotelluric responses of a 3D inhomogeneous earth excited by an arbitrary EM field are nonlocal, which is essential in processing regional MTS data. Due regard for this effect requires data acquisition by a dense synchronous 2D array. We suggest to invert the nonlocal MT responses applying correlation of the surface telluric and magnetic components recorded simultaneously at all stations. The new inversion algorithm has been tested using synthetic data that reproduce the conditions of the BEAR experiment.

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Abstract Magnetotelluric responses of a 3D inhomogeneous earth excited by an arbitrary EM field are nonlocal, which is essential in processing regional MTS data. Due regard for this effect requires data acquisition by a dense synchronous 2D array. We suggest to invert the nonlocal MT responses applying correlation of the surface telluric and magnetic components recorded simultaneously at all stations. The new inversion algorithm has been tested using synthetic data that reproduce the conditions of the BEAR experiment.

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Available abstract

Abstract Magnetotelluric responses of a 3D inhomogeneous earth excited by an arbitrary EM field are nonlocal, which is essential in processing regional MTS data. Due regard for this effect requires data acquisition by a dense synchronous 2D array. We suggest to invert the nonlocal MT responses applying correlation of the surface telluric and magnetic components recorded simultaneously at all stations. The new inversion algorithm has been tested using synthetic data that reproduce the conditions of the BEAR experiment.

Key concepts: Magnetotellurics, Inversion (geology), Geology, Geophysics, Data processing, Magnetic field, Synthetic data, Geodesy

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