Damping of geomagnetic pulsations by the ionosphere

Details Damping of geomagnetic pulsations by the ionosphere Damping of geomagnetic pulsations by the ionosphere

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26..201n&link_type=abstract

Planetary and Space Science, vol. 26, Mar. 1978, p. 201-209.

Computer Science

36

Damping, Geomagnetic Pulsations, Ionospheric Conductivity, Magnetohydrodynamic Waves, Wave Attenuation, Earth Magnetosphere, Harmonic Oscillation, Transverse Waves, Wave Equations

Scientific paper

The damping of low frequency transverse hydromagnetic waves by the ionosphere is investigated by computing the damping experienced by standing Alfven waves in a dipole magnetic field. Both the uncoupled poloidal and toroidal modes are considered with Joule dissipation being introduced through a boundary condition which relates the electric and magnetic field strengths at the ionosphere. Numerical calculations are restricted to the field line resonance region, and the signal is assumed to be purely transverse. Damping rates are strongly dependent on ionospheric conductivity; typically, the normalized damping rate is found to be approximately 0.1 for nightside values of conductivity and approximately 0.01 for the dayside. It is suggested that this circumstance would account for the observed scale of bandwidths in pulsation signals.

Affiliated with

Also associated with

No associations

Rating

Damping of geomagnetic pulsations by the ionosphere 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 Damping of geomagnetic pulsations by the ionosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Damping of geomagnetic pulsations by the ionosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1082880