地震学报2013，Vol.35Issue(2)：184-198,15.DOI:10.3969/j.issn.0253-3782.2013.02.005
利用qP波慢度和偏振矢量计算弱各向异性介质参数
Calculation of weakly anisotropic parameters by slowness and polarization vectors of qP wave
摘要
Abstract
An algorithm is proposed for local evaluation of weakly anisotropic (WA) parameters from measurements of slowness vector components and particle motions of qP waves at individual receivers in a borehole of walkaway vertical seismic profile (VSP) experiment. Formulae for a special case of a single VSP profile are obtained under the assumption of weak but arbitrary anisotropy of the medium. The knowledge of a single component of the slowness vector and the polarization vector is sufficient for performing an inversion in a medium with an arbitrary overburden. A synthetic test is carried out to verify the correctness of the formulae and the method is applied to the observed data from the Java Sea region to invert for the WA parameters in the borehole.关键词
弱各向异性参数/慢度矢量/偏振矢量/反演/变井源距垂直地震剖面Key words
weakly anisotropic parameter/ slowness vector/ polarization vector/ inversion/ walkaway vertical seismic profile分类
天文与地球科学引用本文复制引用
刘宪彬,郑需要..利用qP波慢度和偏振矢量计算弱各向异性介质参数[J].地震学报,2013,35(2):184-198,15.基金项目
国家自然科学基金重大项目(41090292)资助. （41090292）
