Drift and aspect sensitivity of scattering irregularities in the upper equatorial E region

Details Drift and aspect sensitivity of scattering irregularities in the upper equatorial E region Drift and aspect sensitivity of scattering irregularities in the upper equatorial E region

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.8338r&link_type=abstract

Journal of Geophysical Research, vol. 87, Oct. 1, 1982, p. 8338-8342.

Physics

17

E Region, Equatorial Atmosphere, Ionospheric Drift, Ionospheric Propagation, Radar Scattering, Daytime, Drift Rate, Electric Fields, Ionospheric Electron Density, Vertical Distribution

Scientific paper

Recent observations at Jicamarca, Peru, of VHF radio signals coherently scattered from the upper equatorial E region during midday hours show that the corresponding irregularities in the electron density distribution are aligned along the earth's magnetic field. Vertical electron drift velocities in the altitude region between 120 km and 170 km show spatial and temporal variations of as much as 30%. These variations are attributed to small-scale varying electric fields which are generated by the dynamo action of gravity waves in the neutral atmosphere.

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