Circulation in the high-latitude thermosphere due to electric fields and Joule heating

Details Circulation in the high-latitude thermosphere due to electric fields and Joule heating Circulation in the high-latitude thermosphere due to electric fields and Joule heating

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.1829h&link_type=abstract

Journal of Geophysical Research, vol. 80, May 1, 1975, p. 1829-1831

Physics

1

Atmospheric Circulation, Electric Fields, Ionospheric Heating, Polar Regions, Resistance Heating, Thermosphere, Atmospheric Models, Auroral Zones, Ionic Collisions, Molecular Collisions, Ohmic Dissipation, Three Dimensional Motion

Scientific paper

Electric fields in the earth's upper atmosphere are capable of setting the neutral atmosphere in motion via ion-neutral collisions as well as pressure gradients from resultant Joule heating. By means of simple models for the high-latitude thermosphere and electric fields a simplified set of coupled equations is solved which show that moderate electric fields, when present for a period of several hours, are capable of displacing the neutral atmosphere of the order of 50 km in the vertical, a few hundred kilometers in the north-south direction and over 1000 km in the east-west direction.

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