Physics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.7693s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, June 1, 1990, p. 7693-7709. Research supported by NSERC.
Physics
39
Backscattering, Gravity Waves, Ionospheric Propagation, Polar Regions, Radar Measurement, Diurnal Variations, Frequency Distribution, Labrador, Wave Propagation, Wavelengths
Scientific paper
In this study, data from the Goose Bay radar were used to obtain high-spatial-resolution two-dimensional maps of the effects of gravity waves on the high-latitude F region. These maps were used to identify medium-scale waves (MSWs) in the high-latitude ionosphere, to determine their modes of propagation, and to locate the gravity wave sources for their excitation. It was found that the MSWs have a gravity-wave source near the ionospheric convection reversal boundary and generally within the eastward ionospheric electrojet. It is suggested that these gravity waves contribute to a steady transfer of energy from the magnetosphere to the thermosphere.
Baker Kile B.
Frey Andrew
Greenwald Ray A.
Ruohoniemi Michael J.
Samson John C.
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