Comparison of 1D Magnetotelluric Inversion using Levenberg-Marquardt and Occam's Inversion Schemes

被引：0
作者：
Martakusumah, Rocky [1 ]
Srigutomo, Wahyu [1 ]
机构：
[1] Inst Teknol Bandung, Fac Mathemat & Nat Sci, Phys Earth & Complex Syst, Bandung 40132, Indonesia
来源：
5TH ASIAN PHYSICS SYMPOSIUM (APS 2012) | 2015年 / 1656卷
关键词：
Inversion; Magnetotelluric; Levenberg-Marquardt; Occam;
D O I：
10.1063/1.4917160
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
One-dimensional (1D) inversion problem for magnetotelluric (MT) data are addressed using two different schemes: The Levenberg-Marquardt (LM) inversion and Occam-type inversion in order to obtain information on the resolvability of each scheme in recovering the Earth's layered model. We tested both schemes to synthetic MT data generated from a blocky and a smooth model. Standard error (SE) is used as statistical criterion for comparing the fitness between the synthetic and the calculated data as well as the test model and the recovered model. It is revealed that based on the inherent properties posed by the LM and Occam inversion, the data SE is least for Occam method for both the blocky and the smooth models (log rho(a) SE are 0.1167 and 0.0939 for LM and Occam, respectively; phase impedance SE are 0.0649 and 0.0432). The model fitness is achieved best by the Occam inversion (log rho SE are 2.6504 and 1.2512).
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页数：4
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