摘要
大地电磁作为一种重要的地球物理勘探方法,近些年来被广泛的地应用于勘察实践中。在野外大地电磁勘察资料解释的重要手段是大地电磁反演,反演效果的好坏将直接影响解释结果的正确与否。本文研究对比4种目前常用的大地电磁反演方法,即BOSTICK反演、RRI反演、OCCAM反演和NLCG反演,分析4种反演方法各自的优缺点,并对大地电磁正演模型数据进行反演,分析4种反演方法的反演效果,直观上对反演结果进行评价对比。
The magnetotelluric method is one of the major geophysical exploration methods and is widely used in the investigation of practice in recent years. In the field, the inversion is an important means of survey data interpretation, and the inversion quality will directly influence the results of the interpretation no matter whether it is correct or not. This paper compares the four commonly used inversion methods, namely BOSTICK inversion, RRI in- version, OCCAM inversion and NLCG inversion and analyzes their advantages and disad- vantages. Through the inverse modeling data analysis, the inversion result of the four methods can intuitively evaluate the inversion results.
出处
《工程地球物理学报》
2012年第5期537-543,共7页
Chinese Journal of Engineering Geophysics
基金
国家科技专项深部矿产资源立体探测技术与实验(编号:SinoProbe-03-05)资助
关键词
大地电磁
反演方法
分析
对比
magnetotelluric
inversion method
analysis
contrast
