alexa Dipole Correlation Method for Determination of Magnetiz
ISSN: 2469-4134

Journal of Remote Sensing & GIS
Open Access

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Research Article

Dipole Correlation Method for Determination of Magnetization Directionunder the Influence of Remanent Magnetization

Lei Shi1*, Lianghui Guo2, Shi Chen1, Weimin Xu1
1Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
2Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
Corresponding Author : Lei Shi
Institute of Geophysics, China Earthquake Administration
Beijing, 100081, China
Tel: 861068729401
E-mail: [email protected]
Received November 21, 2013; Accepted December 13, 2013; Published December 20, 2013
Citation: Shi L, Guo L, Chen S, Xu W (2013) Dipole Correlation Method for Determination of Magnetization Direction under the Influence of Remanent Magnetization. J Geophys Remote Sensing S4:001. doi:10.4172/2469-4134.S4-001
Copyright: © 2013 Shi L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

Processing and interpretation of magnetic data usually require information of total magnetization direction. However, under the effects of remanant magnetization, total magnetization direction is different from induced magnetization direction, which makes data processing and interpretation complexity. In this paper, we present a new method by cross-correlation of magnetic dipole source for determination of magnetization direction from relatively isolated and approximate equiaxial magnetic total field anomaly. This method calculates cross-correlation coefficient between observed magnetic total field anomaly and theoretical magnetic total field anomaly caused by a magnetic dipole source, by using a set of varying parameters of positions and total magnetization direction of dipole source for trial and error. The corresponding magnetization direction of maximum correlation coefficient is regarded as estimated total magnetization direction. Tests on both synthetic data and aeromagnetic data of a mineral exploration in northwestern China indicate this method reliably and effectively estimates the magnetization direction from relatively isolated and approximate equiaxial magnetic total field anomaly.

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