Topographic core-mantle coupling in geodynamo modeling

Details Topographic core-mantle coupling in geodynamo modeling Topographic core-mantle coupling in geodynamo modeling

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1871k&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 9, p. 1871-1874

Physics

Geophysics

11

Geodesy And Gravity: Earth'S Interior-Dynamics, Geodesy And Gravity: Rotational Variations, Geomagnetism And Paleomagnetism: Dynamo Theories, Mathematical Geophysics: Modeling

Scientific paper

A 3-dimensional, fully nonlinear numerical geodynamo model is used to study the core-mantle coupling arising from a non-hydrostatic pressure field acting on an aspherical core-mantle boundary (CMB) based on a seismological model. The simulation results demonstrate that the topographic coupling torque is close to being proportional to the square of the amplitude of the CMB topography. We conclude that the contribution of the topographic coupling to the total torque that is responsible for the axial angular momentum transfer on decadal timescales (for the decadal length-of-day variation) is significant only if the amplitude of the CMB topography is considerably larger than 3 km inferred from seismological evidence.

Affiliated with

Also associated with

No associations

Rating

Topographic core-mantle coupling in geodynamo modeling 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 Topographic core-mantle coupling in geodynamo modeling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Topographic core-mantle coupling in geodynamo modeling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-934487