Articles | Volume 36, issue 5
https://doi.org/10.5194/angeo-36-1393-2018
https://doi.org/10.5194/angeo-36-1393-2018
Regular paper
 | 
18 Oct 2018
Regular paper |  | 18 Oct 2018

On the approximation of spatial structures of global tidal magnetic field models

Roger Telschow, Christian Gerhards, and Martin Rother

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Latest update: 27 Feb 2024
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Short summary
The extraction of the magnetic signal induced by the oceanic M2 tide is typically based solely on the temporal periodicity of the signal. Here, we propose a system of tailored trial functions that additionally takes the spatial constraint into account that the sources of the signal are localized within the oceans. This construction requires knowledge of the underlying conductivity model but not of the inducing tidal current velocity.