Computer Science – Sound
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.9057r&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 89, Oct. 1, 1984, p. 9057-9068.
Computer Science
Sound
52
Antarctic Regions, Atmospheric Sounding, Meteorological Parameters, Satellite Sounding, Thermosphere, Atmospheric Circulation, Atmospheric Composition, Atmospheric Temperature, F Region, Spring (Season)
Scientific paper
Results of NCAR thermospheric general circulation model (TGCM) simulations were compared with Dynamics Explorer (DE2) data on the neutral wind, temperature and O and N2 number variations over the south polar cap in the F region in October-November 1981. Attention was focused on variations in the thermospheric characteristics. All variations reached a maximum over the magnetic polar cap, with the largest O and N2 changes being present in the dawn sector of the auroral oval, where Joule heating was maximized. The TGCM simulations for conditions similar to the DE2 passes agreed well with the satellite data, indicating that the variations in the wind, temperature and compositional characteristics are dependent on the magnitude of magnetospheric convection and influenced by the separation between the geomagnetic and geographic poles.
Carignan George R.
Dickinson Robert E.
Emery Barbara A.
Hays Paul B.
Killeen Tim L.
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