Open AccessA formula for the apparent attenuation of acoustic waves in randomly layered media
Author(s) -
Menke William
Publication year - 1983
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.1983.tb01939.x
Subject(s) - attenuation , amplitude , wavelength , physics , pulse (music) , optics , geology , detector
Summary. We show that the work of O'Doherty & Anstey can be used to deduce the apparent attenuation of acoustic waves in randomly layered media : Here A (ω, x ) is the amplitude spectrum of the initial pulse of the transmitted wave at angular frequency after having propagated a distance x . The medium is characterized by its mean velocity, its mean impedance, and rms fluctuation ∂ 1 , and has layers of thickness h . This formula is valid for wavelengths longer than one layer thickness.