Print Email Facebook Twitter Time-Domain Modeling of Three-Dimensional Earth's and Planetary Electromagnetic Induction Effect in Ground and Satellite Observations Title Time-Domain Modeling of Three-Dimensional Earth's and Planetary Electromagnetic Induction Effect in Ground and Satellite Observations Author Grayver, Alexander V. (ETH Zürich) Kuvshinov, Alexey (ETH Zürich) Werthmüller, D. (TU Delft Applied Geophysics and Petrophysics) Date 2021-03 Abstract Electric currents induced in conductive planetary interiors by time-varying magnetospheric and ionospheric current systems have a significant effect on electromagnetic (EM) field observations. Complete characterization of EM induction effects is difficult owing to nonlinear interactions between the three-dimensional electrical structure of a planet and spatial complexity of inducing current systems. We present, a general framework for time-domain modeling of three-dimensional EM induction effects in heterogeneous conducting planets. Our approach does not assume that the magnetic field is potential, allows for an arbitrary distribution of electrical conductivity within a planet, and can deal with spatially complex time-varying current systems. The method is applicable to both data measured at stationary observation sites and satellite platforms, and enables the calculation of three-dimensional EM induction effects in near real-time settings. To reference this document use: http://resolver.tudelft.nl/uuid:d27b3b56-5cba-484e-9171-991c17909f13 DOI https://doi.org/10.1029/2020JA028672 Embargo date 2021-07-19 ISSN 2169-9380 Source Journal Of Geophysical Research-Space Physics, 126 (3), 1-26 Part of collection Institutional Repository Document type journal article Rights © 2021 Alexander V. Grayver, Alexey Kuvshinov, D. Werthmüller Files PDF 2020JA028672.pdf 8.07 MB Close viewer /islandora/object/uuid:d27b3b56-5cba-484e-9171-991c17909f13/datastream/OBJ/view