Mars magnetic field intensity: Relationship to core-mantle boundary thermal variability

Details Mars magnetic field intensity: Relationship to core-mantle boundary thermal variability Mars magnetic field intensity: Relationship to core-mantle boundary thermal variability

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1000l&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1000

Physics

Scientific paper

The high intensity of the martian crustal magnetic field has implications for the crustal magnetic carriers and thickness of the magnetized crust. The magnetization of crustal rocks depends on the strength of the dynamo-generated magnetizing field. Here we use numerical dynamo models to demonstrate that the magnetic field strength can depend on lateral core-mantle boundary (CMB) thermal variations. Specifically, if Mars' crust was magnetized by a hemispheric dynamo resulting from a zonal degree-one CMB heat flux variation, then the magnetic energy increases with the magnitude of thermal variability.

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