Physics – Space Physics
Scientific paper
Nov 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978rvgsp..16..539m&link_type=abstract
Reviews of Geophysics and Space Physics, vol. 16, Nov. 1978, p. 539-565.
Physics
Space Physics
37
Atmospheric Circulation, Atmospheric Composition, Thermosphere, Upper Atmosphere, Annual Variations, Diurnal Variations, Helium, Magnetic Storms, Oxygen, Vertical Distribution
Scientific paper
A unifying description is provided of some important dynamic properties of the upper atmosphere in composition and temperature characteristic of a variety of phenomena, including diurnal and seasonal tides, magnetic storms, and momentum coupling with the magnetosphere. A theoretical multiconstituent model is used which can link the large-scale variations of composition and temperature to the dynamics and energetics of the thermosphere. Global mean properties of the thermosphere are reviewed, and an attempt is made to convey some understanding of the dynamic properties of energy and diffusive mass transport in the thermosphere. Attention is given to sources of energy for the thermosphere, the transport processes involved in the solar diurnal tide of the thermosphere, energy and particle sources for the annual tide, feedback from composition changes to wind-field and temperature variations, energy deposition in the thermosphere during magnetic storms and substorms, and momentum source signatures in the thermosphere.
Harris Isadore
Mayr Hans G.
Spencer Nelson W.
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