The modelling of the toroidal magnetic field induced by tidal ocean circulation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10123628" target="_blank" >RIV/00216208:11320/12:10123628 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/j.1365-246X.2012.05407.x" target="_blank" >http://dx.doi.org/10.1111/j.1365-246X.2012.05407.x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/j.1365-246X.2012.05407.x" target="_blank" >10.1111/j.1365-246X.2012.05407.x</a>

Result language
angličtina
Original language name
The modelling of the toroidal magnetic field induced by tidal ocean circulation
Original language description
Observations of the ocean-induced magnetic field by the CHAMP magnetic space mission have the potential to be used as a constraint when examining ocean dynamics. This has initiated theoretical studies on the prediction of the poloidal magnetic field induced by the horizontal ocean-circulation flow. This study deals with the computation and analysis of the toroidal magnetic field induced by the tidal ocean-circulation flow on the background of the main Earths geomagnetic field. Since the induced toroidalmagnetic field cannot be modelled by the single-layer approximation model used to predict the poloidal magnetic field, we treat the ocean as a spherical layer of a finite thickness and compute the toroidal magnetic field by a matrix-propagator techniquewith a source of electric currents in the ocean layer. Our numerical simulations based on the OMCT tidal ocean velocities show that the induced toroidal magnetic field is extremely sensitive to the vertical gradient of horizontal ocean f
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Project
<a href="/en/project/GAP210%2F10%2F2227" target="_blank" >GAP210/10/2227: Regional and global distribution of the electrical conductivity in the Earth?s mantle from ground-based and satellite observations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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