Enhancing the total-field magnetic anomaly using the normalized source strength
Enhancement methods of aeromagnetic data are widely used in mapping geological features. Many methods based on field gradients have been introduced to outline the source edges. However, the disadvantage of these methods is that they require the reduction to pole (RTP) or gradients of the magnetic po...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-12-01
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| Series: | Open Geosciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/geo-2022-0741 |
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| Summary: | Enhancement methods of aeromagnetic data are widely used in mapping geological features. Many methods based on field gradients have been introduced to outline the source edges. However, the disadvantage of these methods is that they require the reduction to pole (RTP) or gradients of the magnetic potential directly measured by specific sensors. This study introduces a new method to enhance magnetic anomaly data without needing the RTP. This method uses the normalized source strength (NSS) calculated from the total-field magnetic anomaly, subsequently balanced by the tilt angle filter. The new method is tested on synthetic datasets and a real dataset of the Olympic Peninsula. The findings show that the presented method is less sensitive to variations in the source depth. These findings also showed that this method is less dependent on the magnetization direction and produces more precise and sharper boundaries than other methods. Thus, the presented method appears promising in providing a valuable tool for interpreting magnetic data compared to traditional methods. |
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| ISSN: | 2391-5447 |