Radio wave scattering from the southern hemisphere D-region

Details Radio wave scattering from the southern hemisphere D-region Radio wave scattering from the southern hemisphere D-region

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jatp...39.1011c&link_type=abstract

(IUGG, IAGA, COSPAR, URSI, NOAA, USAF, Australian Academy of Science, and Australian Institute of Physics, International Symposi

Physics

1

D Region, Gravity Waves, Radio Scattering, Southern Hemisphere, Air Water Interactions, Atmospheric Turbulence, Thermoclines

Scientific paper

A common mechanism is proposed to explain similarities between HF scattering in the D-region (below 80 km) over Adelaide (mid-latitude) and VHF scattering over Jicamarca (low-latitude). Attention is given to the Rice parameter, plotted against altitude, which is a measure of specular as opposed to scattered amplitude ratio. Dissipation of turbulent energy is held, tentatively, to be the mechanism responsible for the scattering, but it is considered unlikely that it is the mechanism for long-lived scattering caused by reflecting regions. Possible sources of the turbulent energy dissipation are mentioned, including gravity waves and the oceanic thermocline.

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