Estimating the Magnetization Direction of Sources through Correlation between Reduced-to-Pole Anomaly and Normalized Source Strength

Abstract:

Under the effects of remanent magnetization, total magnetization direction is different from geomagnetic field direction, which makes magnetic data processing and interpretation complexity. In this paper, we present a new approach for estimating the total magnetization direction of sources via cross-correlation between the reduced-to-pole anomaly and the normalized source strength (who is less sensitive to remanent magnetization). The geomagnetic field direction is used to calculated the normalized source strength, while various assumed total magnetization directions are used to calculated the RTP anomalies. The maximum correlation between the RTP anomalies and the normalized corresponds to the estimated total magnetization direction. Test on synthetic data showed that the new approach is simple and effective.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 3793-3796
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.3793
• Online since: September 2014
• Authors: Liang Hui Guo*, Rui Gao, Guo Li Zhang
• Keywords: Correlation, Magnetization Direction, Normalized Source Strength, Remanent, RTP

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