Determination of three-dimensional distribution of electrical conductivity in the Earth’s mantle from Swarm satellite data: Time-domain approach | Zendy

Jakub Velı́mský | Zendy

Open Access

Determination of three-dimensional distribution of electrical conductivity in the Earth’s mantle from Swarm satellite data: Time-domain approach

Author(s) -

Jakub Velı́mský

Publication year - 2013

Publication title -

earth planets and space

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.835

H-Index - 74

eISSN - 1880-5981

pISSN - 1343-8832

DOI - 10.5047/eps.2013.08.001

Subject(s) - swarm behaviour , inversion (geology) , remote sensing , geophysics , satellite , noise (video) , time domain , geology , computer science , geodesy , algorithm , seismology , aerospace engineering , artificial intelligence , engineering , image (mathematics) , computer vision , tectonics

One of the primary goals of the Swarm multisatellite mission is to determine the 3-D distribution of electrical conductivity in the Earth’s mantle. This paper presents an inversion method based on direct integration of magnetic fields in the time domain, and using the adjoint solution for fast evaluation of data sensitivities to model perturbations. Two tests of the method are presented. The first one is using a 3-D checkerboard conductivity model and noise-free synthetic data. The second test is based on the closed-loop simulation of Swarm mission, including recovery of external and induced fields from simulated data along satellite tracks, and realistic noise estimates.

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