Physics
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..875s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 16, Aug. 1989, p. 875-878. Research supported by NSERC.
Physics
25
Atmospheric Physics, Coherent Radar, Gravity Waves, Ionospheric Propagation, Polar Regions, Radar Tracking, Backscattering, Coherent Scattering, High Frequencies
Scientific paper
A high-frequency coherent scatter radar has observed propagating atmospheric gravity waves between northeastern Canada and Greenland which appear as spatially localized enhancements in the backscattered power and as quasi-periodic fluctuations in the backscattered powers, Doppler velocities, and reflections heights. They are shown to be accompanied by backscatter from higher-latitude ionospheric irregularities located near the ionospheric convection reversal boundary. The results indicate that the waves are excited at a height of 100-150 km near the convection reversal boundary and the polar cusp, and that the bulk of the observed perturbations are due to earth-reflected waves.
Baker Kile B.
Greenwald Ray A.
Ruohoniemi Michael J.
Samson John C.
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