Open AccessInversion of Love‐wave data for velocity and anelasticity using exact kernels
Author(s) -
Silva Walter
Publication year - 1978
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1978.tb04277.x
Subject(s) - inversion (geology) , attenuation , spurious relationship , amplitude , mathematical analysis , inverse theory , haskell , inverse transform sampling , synthetic data , geophysics , geology , mathematics , physics , algorithm , computer science , surface wave , optics , seismology , tectonics , functional programming , statistics , theoretical computer science
Summary. The general problem of inverting Love‐wave dispersion and amplitude data to obtain a velocity and Q s structure is considered. A formulation is used which incorporates attenuation into the Haskell‐Thompson matrix method in an exact manner and thus retains the inherent non‐linearity in the anelasticity. The resulting exact inversion kernels allow simultaneous inversion for velocity and intrinsic attenuation parameters. The method is applied to synthetic data which allows a comparison to be made with inexact kernels. The results indicate that the use of inexact kernels may introduce spurious oscillations into the Q s structure and that a simultaneous inversion can be more stable than inverting for velocity alone.