Multi-scale envelope-based analysis of geomagnetic anomaly field

• Autorzy: Chen Mengtao , Chen Guoxin , Yang Wencai

Identyfikatory

DOI

10.1007/s11600-022-00922-4

• Języki publikacji: EN

Abstrakty

EN

This paper introduces a news processing method for geomagnetic anomaly field data: envelope mode magnetic field, which can weaken the influence caused by geomagnetic polarity reversal during rock magnetization, reflect the magnetic change of crustal rocks, and locate the crustal structures. According to the characteristics of the magnetic anomaly field, the envelope mode magnetic field is calculated in three different ways: full anomaly envelope, positive anomaly envelope, and negative anomaly envelope. The simulation test of seismic signal and magnetic anomaly model has achieved good results. During the calculation of the real-world data, because the magnetization directions of the geomagnetic field in the southern and northern hemispheres are opposite, we use the full envelope or positive envelope method for the northern hemisphere and the negative envelope method for the southern hemisphere. The experiment using EMAG2 global satellite magnetic anomaly data demonstrates that the strong anomaly of the envelope mode magnetic field is consistent with the spatial distribution of cratonic tectonic units, confirming its application effect.

Słowa kluczowe

EN

envelope; geomagnetic anomaly field data; envelope mode magnetic

PL

obwiednia

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2023
• Tom: Vol. 71, no. 1
• Strony: 65--78
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Chen Mengtao

• School of Earth Sciences, Zhejiang University, Hangzhou, China

autor

Chen Guoxin

• Ocean College, Zhejiang University, Zhoushan, China

• https://orcid.org/0000-0003-2581-7458

autor

Yang Wencai

• School of Earth Sciences, Zhejiang University, Hangzhou, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).