A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit

Details A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.8301j&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Sept. 1, 1985, p. 8301-8307.

Physics

10

Electric Fields, Geomagnetism, Geosynchronous Orbits, Magnetospheric Instability, Poynting Theorem, Statistical Analysis, Geos 2 Satellite, Magnetohydrodynamic Waves

Scientific paper

From electric and magnetic field data measured at geostationary orbit, 3580 wave Poynting vectors for long-period magnetospheric pulsations were computed. Typical vector magnitudes were in the range 10 to the -9th to -7th W/sq m. During the winter season, the field-aligned component of the majority of the vectors was directed to the Northern Hemisphere, where the ionospheric conductivity was lower than in the opposite hemisphere. For most Poynting vector events, the E/b(E) ratio was well above the local Alfven speed, and generally increased with increasing wave frequency of the pulsations. Most long-period wave Poynting vectors had an inward component and pointed toward the nose of the magnetosphere. These results are in good agreement with the interpretation of the vector events as fundamental mode eigenoscillations of geomagnetic field lines which are caused by solar wind driven surface waves on the outer boundaries of the magnetosphere.

Affiliated with

Also associated with

No associations

Rating

A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit 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 A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A statistical study of wave Poynting vectors measured during long-period magnetospheric pulsations at geostationary orbit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-801580