Modal decomposition of magnetic maps: the case of Cape Roberts aeromagnetic survey, Antarctica

• Published in: Annals of Geophysics
• Main Author: Gambetta, Marco
• Format: Article in Journal/Newspaper
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia, INGV 2009
• Subjects: Magnetic mapping – Digital Enhancement – Eigenvalues – HRAM – Antarctic Magnetic Surveys; Antarctic; Cape Roberts; Antarc*; Antarctica
• Online Access: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4641; https://doi.org/10.4401/ag-4641

This paper proposes a digital enhancement tool for magnetic anomaly maps. The magnetic anomaly map is decomposedby means of Eigenvalue Decomposition into a number of orthogonal bases. The dataset is then filteredaccordingly to a specific variance pattern. The dataset is decomposed and the eigenvalue...