The dynamic response of the thermosphere to the energy influx resulting from energetic O/+/ ions

Details The dynamic response of the thermosphere to the energy influx resulting from energetic O/+/ ions The dynamic response of the thermosphere to the energy influx resulting from energetic O/+/ ions

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.5290t&link_type=abstract

Journal of Geophysical Research, vol. 87, July 1, 1982, p. 5290-5300.

Physics

14

Atmospheric Heating, Dynamic Response, Energetic Particles, Oxygen Ions, Particle Precipitation, Thermosphere, Atmospheric Circulation, Atmospheric Models, Atmospheric Temperature, Geomagnetism, Magnetic Storms

Scientific paper

Precipitating fluxes of energetic O(+) ions during magnetic storms constitute a significant source of energy to the nightside thermosphere at altitudes above 200 km. The resulting perturbations of temperature and winds in the thermosphere due to energetic O(+) precipitation are examined by computing the heating rate profile from such a precipitation event and using this as input to the NCAR thermospheric general circulation model. The results of a time dependent calculation show that heating due to energetic O(+) ion precipitation produces a significant perturbation to the thermospheric structure above about 300 km. Energetic O(+) precipitation events should produce considerable variability in the upper thermosphere during geomagnetic storms.

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