Articles | Volume 12, issue 1
Research article
15 Jan 2016
Research article |  | 15 Jan 2016

Impact of variable seawater conductivity on motional induction simulated with an ocean general circulation model

C. Irrgang, J. Saynisch, and M. Thomas

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Cited articles

Apel, J. R.: Principles of Ocean Physics, International Geophysics Series, Academic Press, San Diego, California, Vol. 38, 1987.
Chave, A. D.: On the theory of electromagnetic induction in the Earth by ocean currents, J. Geophys. Res., 88, 3531,, 1983.
Chave, A. D. and Luther, D. S.: Low-frequency, motionally induced electromagnetic fields in the ocean 1. Theory, J. Geophys. Res., 95, 7185–7200, 1990.
Dill, R.: Hydrological model LSDM for operational Earth rotation and gravity field variations, Tech. rep., Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum, Potsdam, Germany,, 2008.
Short summary
In this study, the influence of a spatio-temporally variable seawater conductivity on ocean-circulation-induced magnetic signals is investigated. To simulate the ocean-circulation-induced magnetic field, a combination of an ocean general circulation model (OMCT) and an electromagnetic induction model is used. It is found that a spatially varying seawater conductivity has a significant impact on the temporal variability of the induced magnetic field.