Geomagnetic secular variation impulses

Details Geomagnetic secular variation impulses Geomagnetic secular variation impulses

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.311..709c&link_type=abstract

Nature (ISSN 0028-0836), vol. 311, Oct. 25, 1984, p. 709-716.

Physics

52

Earth Mantle, Geodynamics, Geomagnetic Pulsations, Magnetic Variations, Secular Variations, Dynamo Theory, Earth Core, Earth Rotation, Electrical Resistivity, Electromagnetic Coupling, Geoelectricity

Scientific paper

The secular variation of the earth's internal magnetic field changes on time scales of the order of a year. Such impulses occurred in 1969 and probably in 1913; they provide constraints on deep mantle conductivity, which appears to be rather low, and on the motions of the top of the fluid core, which are probably dominated by westward drift. Present data favor the existence of upwelling of core material at the core-mantle boundary. The impulses can be correlated with extrema in the earth's rotation rate and interpreted in terms of electromagnetic core-mantle coupling.

Affiliated with

Also associated with

No associations

Rating

Geomagnetic secular variation impulses 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 Geomagnetic secular variation impulses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geomagnetic secular variation impulses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1229456