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

• Main Author: Gambetta, M.
• Other Authors: Gambetta, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia
• Format: Manuscript
• Language: English
• Published: 2008
• Subjects: SVD; MAGNETIC ANOMALIES; Antarctic Magnetic Surveys; HRAM; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods; Antarctic; Cape Roberts; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/2122/4735

This paper proposes a digital enhancement tool for magnetic anomaly maps. The magnetic anomaly map is decomposed by means of Singular Value Decomposition into a number of orthogonal basis. The dataset is then filtered, after eigenvalues evaluation, accordingly to a specific variance pattern. The fil...