Genetic algorithm in seismic waveform inversion and its application in deep seismic sounding data interpretation
Genetic algorithm in seismic waveform inversion and its application in deep seismic sounding data interpretation作者机构：Geophysical Exploration Center China Earthquake Administration Zhengzhou 450002 China
出 版 物：《Acta Seismologica Sinica(English Edition)》 (Acta Seismol Sin)
年 卷 期：2006年第19卷第2期
页 面：163-172页
核心收录：
学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学]
主 题：genetic algorithm waveform inversion numerical test deep seismic sounding fine crustal structure
摘 要：A genetic algorithm of body waveform inversion is presented for better understanding of crustal and upper mantle structures with deep seismic sounding （DSS） waveform data. General reflection and transmission synthetic seismogram algorithm, which is capable of calculating the response of thin alternating high and low velocity layers, is applied as a solution for forward modeling, and the genetic algorithm is used to find the optimal solution of the inverse problem. Numerical tests suggest that the method has the capability of resolving low-velocity layers, thin alternating high and low velocity layers, and noise suppression. Waveform inversion using P-wave records from Zeku, Xiahe and Lintao shots in the seismic wide-angle reflection/refraction survey along northeastern Qinghai-Xizang （Tibeteau） Plateau has revealed fine structures of the bottom of the upper crust and alternating layers in the middle/lower crust and topmost upper mantle.
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