A numerical investigation of thermosphere-ionosphere interaction over Millstone Hill

Details A numerical investigation of thermosphere-ionosphere interaction over Millstone Hill A numerical investigation of thermosphere-ionosphere interaction over Millstone Hill

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990p%26ss...38.1541h&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 38, Dec. 1990, p. 1541-1549.

Computer Science

4

Atmospheric Circulation, Atmospheric Models, F Region, Ionospheric Disturbances, Thermosphere, Diurnal Variations, F 2 Region, Iterative Solution, Magnetic Storms, Temperate Regions

Scientific paper

Feedback loops in a coupled thermosphere-ionosphere system are identified and quantified by utilizing a wind model employing a two-dimensional solution of the coupled horizontal momentum equations in the vertical/local-time frame. Focus is placed on F(2)-layer peak density, F(2)-layer peak height, zonal wind, meridional wind, and Coriolis force. For a magnetically undisturbed system, the requirement for the self-consistent treatment of thermospheric-ionospheric coupling is found to be weak during the day, while night-time self-consistent calculations indicate significant ionospheric effects. The effects of neutral composition changes associated with geomagnetic activity on the thermospheric-ionospheric system are evaluated by comparing two additional self-consistent calculation results, and wind enhancements of up to 100 m/s associated with the lifting and negative-phase depletion of the F-region for prolonged magnetic-disturbance conditions are found.

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