The formation of weakly anisotropic irregularities in the high-latitude ionosphere

Details The formation of weakly anisotropic irregularities in the high-latitude ionosphere The formation of weakly anisotropic irregularities in the high-latitude ionosphere

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ge%26ae..23..230g&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 23, Mar.-Apr. 1983, p. 230-233. In Russian.

Physics

2

Auroral Zones, Ionospheric Disturbances, Polar Regions, Wave Interaction, Anisotropic Media, E Region, Electrostatic Waves, F Region

Scientific paper

The three-wave interaction approximation is used to assess the possibility of the formation of weakly anisotropic irregularities in the E and F regions of the high-latitude ionosphere due to the nonlinear interaction of electrostatic waves generated by gradient-drift instability. It is shown that the nonlinear interaction can lead to the appearance in the F-region of irregularities with a transverse dimension of 600 m and an anisotropy of beta = 3-10 at drift velocities of 100-1000 m/s. In addition, it is found that meter-scale weakly anisotropic irregularities can arise at heights of 100-120 km.

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