Imaging multiple magnetized anomalies by geomagnetic monitoring
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 112661 |
Journal / Publication | Journal of Computational Physics |
Volume | 498 |
Online published | 29 Nov 2023 |
Publication status | Published - 1 Feb 2024 |
Link(s)
Abstract
The presence of magnetized anomalies in the shell of the Earth interrupts its geomagnetic field. We consider the inverse problem of identifying the anomalies by monitoring the variation of the geomagnetic field. Motivated by the theoretical unique identifiability result in [7], we develop a novel numerical scheme of locating multiple magnetized anomalies. In our study, we do not assume the source that generates the geomagnetic field, and the medium configurations of the Earth's core and the magnetized anomalies are a-priori known. The core of the reconstruction scheme is a novel imaging functional whose quantitative behaviours can be used to identify the anomalies. Both rigorous analysis and extensive numerical experiments are provided to verify the effectiveness and promising features of the proposed reconstruction scheme. © 2023 Elsevier Inc.
Research Area(s)
- Direct imaging, Geomagnetic monitoring, Geophysical inverse problem, Imaging functional, Locating, Magnetized anomalies
Citation Format(s)
Imaging multiple magnetized anomalies by geomagnetic monitoring. / Chen, Rongliang; Deng, Youjun; Gao, Yang et al.
In: Journal of Computational Physics, Vol. 498, 112661, 01.02.2024.
In: Journal of Computational Physics, Vol. 498, 112661, 01.02.2024.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review