A two-dimensional, high-resolution, nested-grid model of the thermosphere. I - Neutral response to an electric field 'spike'

Details A two-dimensional, high-resolution, nested-grid model of the thermosphere. I - Neutral response to an electric field 'spike' A two-dimensional, high-resolution, nested-grid model of the thermosphere. I - Neutral response to an electric field 'spike'

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2971f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, May 1, 1984, p. 2971-2990.

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56

Atmospheric Circulation, Atmospheric Heating, Atmospheric Models, Auroral Electrojets, Gas-Ion Interactions, Thermosphere, Advection, Atmospheric Chemistry, Auroral Ionization, Computational Grids, Convection, Neutral Gases, Resistance Heating, Two Dimensional Models

Scientific paper

A two-dimensional nested-grid model of the thermosphere with high resolution in the horizontal direction is developed in order to examine dynamic, electrodynamic, and chemical problems at high altitudes. The advection of momentum and energy can strongly influence the neutral dynamic response and energetics within and near the small-scale auroral features at high altitudes. Second-order features are demonstrated by coupling the energy equation (i.e., the initial meridional divergence responding to Joule heating). Horizontal heat conduction was a significant transport mechanism for heat transferal from within the convection channel to the adjacent atmosphere. The earth's rotation effected asymmetries in the dynamical response on the poleward and equatorward sides of the source channel, and the different summing of the Coriolis and centrifugal parameters caused differences in the dawn and dusk sectors. Also discussed are coupling the major species composition equations, response smearing, and viscous dissipation.

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