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

• Published in: Annals of Geophysics
• Main Author: Marco Gambetta
• 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; Meteorology. Climatology; QC851-999; Geophysics. Cosmic physics; QC801-809; Antarctic; Cape Roberts; Antarc*; Antarctica
• Online Access: https://doi.org/10.4401/ag-4641; https://doaj.org/article/328ce0c23c03485594e921d9b62e367c

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