The convective origin of hemispherical dynamos

Details The convective origin of hemispherical dynamos The convective origin of hemispherical dynamos

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..356d&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.356

Computer Science

Scientific paper

The hemispherical magnetization of the Martian crust suggests, that Mars once must have had an internal magnetic field. To investigate the reason for the dichotomy we explore the possibility for a hemispherical dynamo action [4] using the numerical dynamo model MagIC [5]. Since Mars may still not have developed a solid inner core and therefore no compositional convection has been activated we model a dynamo purely driven by secular cooling. At the outer boundary of the spherical shell dynamo region a heat flux condition is used. Additionally, we impose a sinusoidal north/south variations with a relative amplitude g to mimic non-homogeneous core mantle boundary (CMB) heat flux due to low-degree mantle convection [2] or giant impacts [3].

Affiliated with

Also associated with

No associations

Rating

The convective origin of hemispherical dynamos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The convective origin of hemispherical dynamos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The convective origin of hemispherical dynamos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1477071