Statistics – Computation
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33.1283r&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 33, Nov. 1985, p. 1283-1301. SERC-supported research.
Statistics
Computation
45
Atmospheric Composition, Magnetic Storms, Thermosphere, Atmospheric Temperature, F Region, Molecular Weight, Wind Variations
Scientific paper
The UCL three-dimensional time-dependent thermospheric model with atomic and molecular components was used to study changes in the composition of neutral gas produced by a severe magnetic storm in the ionospheric F-layer. The computations give the mean molecular weight, temperature, and winds in the F-layer as functions of latitude, longitude, height, and time for a period of 30 h. Storm effects were superimposed on the quiet-day summer-to-winter circulation in which upwelling occurs in the summer hemisphere and downwelling in the winter hemisphere. It is shown that changes in the neutral gas composition at a fixed height are somewhat different from those at a fixed pressure-level because of the expansion due to storm heating. Some implications of the numerical computations for current theories concerning F-layer storm processes are discussed.
Fuller-Rowell Tim J.
Gordon Rachel
Rees David
Rishbeth Henry
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