Inversion for Crustal Structure Using Multiscale SAGA Algorithm

详细信息   

• 责任者：Pan Jishun (North China Institute of Water Conservation and Hydroelectric Power ; Zhengzhou 450011 ; China) ; Tang Jie
• 刊名：Journal of Seismological Research
• 出版年：2008
• 卷期：31(3)
• 关键词：速度结构 ; velocity structure ; 上地壳 ; upper crust ; 青藏高原 ; Qinghai-Tibetan Plateau
• 页码：p.255-261
• 图表：8 illus., 20 refs.
• 分类号：0400
• issnNo：ISSN1000-0666
• isbnNo：CN53-1062/P

摘要

AGA is a combined algorithm of Simulated Annealing (SA) and Genetic Algorithm (GA).The method has the feature of higher searching efficiency than SA or GA alone, but can not radically solve the problem of convergence prematurity of GA. The multiscale SAGA algorithm, which is based on multiscale successive approximation, can effectively solve the problem. The authors used the method to reconstruct an anomalous high-velocity body in a numerical test model, and to study the upper crustal structure characteristics of the eastern segment of the A’nyemaqen suture zone. Both test and practical application prove that the multiscale SAGA is a good tool for seismic tomography.