Open AccessThe similitude equation in magnetotelluric inversion
Author(s) -
Dosso S. E.,
Oldenburg D. W.
Publication year - 1991
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1991.tb03910.x
Subject(s) - magnetotellurics , similitude , inversion (geology) , geology , electromagnetic field , mathematical analysis , geophysics , mathematics , electrical resistivity and conductivity , physics , seismology , thermodynamics , tectonics , quantum mechanics
SUMMARY The similitude equation for electromagnetic induction represents an exact integral relationship between the conductivity model and field measurements, and has been suggested as a basis for the inversion of magnetotelluric data. In this note, inversion of the similitude equation is compared to linearized inversion and found to be inadequate in that it implicitly neglects first‐order terms.