Thermospheric dynamics during the March 22, 1979, magnetic storm. I - Model simulations. II - Comparisons of model predictions with observations

Details Thermospheric dynamics during the March 22, 1979, magnetic storm. I - Model simulations. II - Comparisons of model predictions with observations Thermospheric dynamics during the March 22, 1979, magnetic storm. I - Model simulations. II - Comparisons of model predictions with observations

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.6045r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, June 1, 1987, p. 6045-6081. USAF-supported research.

Physics

84

Atmospheric Models, Energy Transfer, Magnetic Storms, Thermosphere, Auroral Zones, Magnetospheric Instability, Northern Hemisphere, Solar Wind, Southern Hemisphere, Space Plasmas

Scientific paper

The NCAR thermospheric global circulation model (TGCM), as extended by Dickinson et al. (1984), is applied to the data base generated by Coordinated Data Analysis Workshop 6 (1985) to simulate the substorm events of March 22, 1979, with a focus on solar-wind/magnetosphere energy transfer. The results are presented in extensive maps and graphs and characterized in detail. The TGCM temperature responses are compared with those predicted by the MSIS-83 empirical model of Hedin et al. (1983) and shown to have much higher time resolution, revealing local regions of intense heating and wave propagation related to auroral activity. Also presented is a detailed comparison between the TGCM predictions and observational data from satellite neutral-wind and total-mass-density measurements and neutral exospheric temperatures determined from midlatitude Thomson-scattering measurements. A number of points of agreement are noted, and possible reasons for the discrepancies found are explored.

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