Author:
Telschow Roger,Gerhards Christian,Rother Martin
Abstract
Abstract. 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.
Approximations of existing tidal magnetic field models with these trial
functions and comparisons with approximations based on other localized and
nonlocalized trial functions are illustrated.
Funder
Deutsche Forschungsgemeinschaft
Subject
Space and Planetary Science,Earth and Planetary Sciences (miscellaneous),Atmospheric Science,Geology,Astronomy and Astrophysics
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