The high latitude circulation and temperature structure of the thermosphere near solstice

Details The high latitude circulation and temperature structure of the thermosphere near solstice The high latitude circulation and temperature structure of the thermosphere near solstice

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983p%26ss...31.1479r&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 31, Dec. 1983, p. 1479-1499.

Statistics

Computation

58

Atmospheric Circulation, Atmospheric Temperature, Solar Terrestrial Interactions, Solstices, Thermosphere, Annual Variations, Dynamic Models, F Region, Gas Temperature, Ionospheric Ion Density, Meridional Flow, Neutral Gases, Solar Cycles, Temperature Distribution

Scientific paper

NCAR thermospheric-general-circulation-model (TGCM) computations of solar-maximum thermospheric neutral-gas temperature and circulation around the December solstice are presented and discussed. The TGCM uses a 5 x 5-deg grid and 24 constant-pressure layers, corresponding to altitudes of about 97-500 km. The results are mapped as electron-density contours, polar plots, cylindrical equidistant projections, meridional cross sections, and F-region polar plots comparing the TGCM predictions with DE-2 satellite observations. The significant differences between summer and winter high-latitude F-region winds are attributed to the ion drag momentum associated with magnetospheric convection. The TGCM wind predictions follow the same pattern as the satellite measurements but are too small; possible model corrections are considered.

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