Computer Science – Sound
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rbrfi...7..225g&link_type=abstract
Revista Brasileira de Fisica, vol. 7, Aug. 1977, p. 225-235.
Computer Science
Sound
Atmospheric Electricity, Electric Fields, Interplanetary Medium, Ionospheric Sounding, Atmospheric Models, Auroral Zones, Earth Magnetosphere, Elastic Waves, Interplanetary Magnetic Fields, Magnetic Storms
Scientific paper
Three hundred hours of ionospheric electric field measurements collected during balloon flights at auroral latitudes provide information on the fast and the delayed modes by which the interplanetary electric field penetrates to the magnetosphere. The data are compared to electric field computations from an open magnetosphere model. The fast mode may be considered the result of rarefaction waves, while the delayed mode may be represented by convection waves. The evidence indicates that studies of magnetic substorms need to deal not only with the rarefaction wave associated with the one-hour delay between southward shifting of the interplanetary magnetic field and substorm initiation, but also with the rarefaction wave associated with longer delays.
Almeida W. A.
Gonzales L. C. A.
Gonzales Walter D.
Mozer Forrest S.
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