Physics
Scientific paper
Nov 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jatp...40.1153n&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 40, Oct.-Nov. 1978, p. 1153-1156.
Physics
Annual Variations, Atmospheric Models, Geomagnetic Pulsations, Ionospheric Disturbances, Magnetospheric Instability, Diurnal Variations, Equatorial Atmosphere, Harmonic Analysis, Midlatitude Atmosphere, Phase Deviation, Ring Currents, Wind Variations
Scientific paper
The annual cycle of the strength of the geomagnetic horizontal field shows a local time dependence. Recent explanations for this invoke a ring current or magnetospheric source for the night-time, and an ionospheric source for the daytime annual waves, but the relative importance of each source has been uncertain. Harmonic dials of the annual waves in H from harmonic analysis at several local times and observatories are presented. Comparison with corresponding analyses of observed ionospheric winds supports the two source model. It is shown that both the magnetospheric and ionospheric components in H are 180 deg out of phase across the equator. But because of differing amplitudes of the two components across the equator, the net annual waves are about 160 deg out of phase across the equator.
No associations
LandOfFree
The components of the annual line in geomagnetic field elements 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 components of the annual line in geomagnetic field elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The components of the annual line in geomagnetic field elements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1067498