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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| Format: | Article |
| Language: | English |
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De Gruyter
2024-12-01
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| Series: | Open Geosciences |
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| Online Access: | https://doi.org/10.1515/geo-2022-0741 |
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| author | Long Nguyen Ngoc Pham Luan Thanh Abdelrahman Kamal Ai Hanbing Nguyen Dat Viet Duong Van-Hao Fnais Mohammed S. Eldosouky Ahmed M. |
| author_facet | Long Nguyen Ngoc Pham Luan Thanh Abdelrahman Kamal Ai Hanbing Nguyen Dat Viet Duong Van-Hao Fnais Mohammed S. Eldosouky Ahmed M. |
| author_sort | Long Nguyen Ngoc |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-706ba64ec4bb4c4f9d4c0de1fa690a1b |
| institution | DOAJ |
| issn | 2391-5447 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Geosciences |
| spelling | doaj-art-706ba64ec4bb4c4f9d4c0de1fa690a1b2025-08-20T02:57:40ZengDe GruyterOpen Geosciences2391-54472024-12-01161336110.1515/geo-2022-0741Enhancing the total-field magnetic anomaly using the normalized source strengthLong Nguyen Ngoc0Pham Luan Thanh1Abdelrahman Kamal2Ai Hanbing3Nguyen Dat Viet4Duong Van-Hao5Fnais Mohammed S.6Eldosouky Ahmed M.7University of Science, Vietnam National University, Hanoi, VietnamUniversity of Science, Vietnam National University, Hanoi, VietnamDepartment of Geology & Geophysics, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi ArabiaSchool of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei, 430074, ChinaUniversity of Science, Vietnam National University, Hanoi, VietnamVNU School of Interdisciplinary Sciences and Arts, Vietnam National University, Hanoi, VietnamDepartment of Geology & Geophysics, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi ArabiaDepartment of Geology, Faculty of Science, Suez University, P.O. Box: 43221, Suez, EgyptEnhancement 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.https://doi.org/10.1515/geo-2022-0741aeromagnetic dataedge enhancementnormalized source strength |
| spellingShingle | Long Nguyen Ngoc Pham Luan Thanh Abdelrahman Kamal Ai Hanbing Nguyen Dat Viet Duong Van-Hao Fnais Mohammed S. Eldosouky Ahmed M. Enhancing the total-field magnetic anomaly using the normalized source strength Open Geosciences aeromagnetic data edge enhancement normalized source strength |
| title | Enhancing the total-field magnetic anomaly using the normalized source strength |
| title_full | Enhancing the total-field magnetic anomaly using the normalized source strength |
| title_fullStr | Enhancing the total-field magnetic anomaly using the normalized source strength |
| title_full_unstemmed | Enhancing the total-field magnetic anomaly using the normalized source strength |
| title_short | Enhancing the total-field magnetic anomaly using the normalized source strength |
| title_sort | enhancing the total field magnetic anomaly using the normalized source strength |
| topic | aeromagnetic data edge enhancement normalized source strength |
| url | https://doi.org/10.1515/geo-2022-0741 |
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