Physics
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988geoj...94...35m&link_type=abstract
Geophysical Journal (ISSN 0952-4592), vol. 94, July 1988, p. 35-50.
Physics
4
Dynamo Theory, Earth Surface, Geomagnetism, Magnetic Variations, Secular Variations, Time Dependence, Earth Core, Maximum Likelihood Estimates
Scientific paper
Theoretical models of geomagnetic-field time variation are examined analytically, with a focus on the time dependence of the Gauss coefficients. Consideration is given to (1) the two-component (stationary and westward-drifting) model of Yukutake and Tachinaka (1969); (2) a modified version of (1) (Wang and Qi, 1983); and new models in which either (3) the stationary component, (4) the drifting component, or (5) both of the components are subject to periodic fluctuations. Model predictions are compared with the measurement data compiled by Shimizu and Honkura (1986) in extensive tables and graphs, and it is concluded that (1) and (2) do not adequately describe the data. Model (5) is found to give the best results (with no eastward-drifting fields required), especially when the fluctuations of the drifting and stationary components are of different character.
Honkura Yoshimori
Matsushima Masaki
No associations
LandOfFree
Fluctuation of the standing and the drifting parts of the earth's magnetic field 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 Fluctuation of the standing and the drifting parts of the earth's magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuation of the standing and the drifting parts of the earth's magnetic field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1423090