Controlled-source magnetotellurics: source effects | Zendy

T. Smith | Zendy; K.H. Lee | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Controlled-source magnetotellurics: source effects

Author(s) -

T. Smith,

K.H. Lee

Publication year - 1999

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/760306

Subject(s) - wavenumber , electrical impedance , magnetotellurics , wave impedance , inversion (geology) , frequency domain , electrical resistivity and conductivity , time domain , acoustics , computational physics , physics , geology , computer science , optics , mathematical analysis , mathematics , seismology , quantum mechanics , computer vision , tectonics

In this paper we evaluate the CSMT impedance in the wavenumber domain, and compare the result with the full EM impedance obtained from the exact solution over the layered earth. Preliminary results show that we can find a pair of wavenumbers that reproduces the full EM impedance over the frequency range affected by source effects. This observation suggests that it is now possible to obtain the electrical resistivity using the low-frequency EM impedance data that can be represented by a pair of wavenumbers, thereby greatly simplifying the computational requirements. The process will involve a non-linear inversion of near-source impedance data for a pair of wavenumbers and a layered-earth resistivity structure

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research