Energy and power requirements of the global thermosphere during the magnetic storm of November 10, 2004

Details Energy and power requirements of the global thermosphere during the magnetic storm of November 10, 2004 Energy and power requirements of the global thermosphere during the magnetic storm of November 10, 2004

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jastp..72..309b&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 72, Issue 4, p. 309-318.

Physics

1

Magnetic Storm, Poynting Flux, Thermospheric Energy

Scientific paper

We used Poynting fluxes and densities to investigate the stormtime thermosphere on November 10, 2004. Thermospheric energy, Eth which is derived from , consists of two sources, solar ultraviolet radiation (Eth UV) and the solar wind (Eth SW). Responses of Eth SW to interplanetary driving suggest that the thermosphere can be described by the equation dEth SW/dt=[alpha][epsilon]VS-(Eth SW/[tau]), where [epsilon]VS represents the electric field; [alpha] and [tau] are constants. We show that: (1) Eth SW is three times the ring-current energy; (2) [alpha][epsilon]VS is comparable with model predictions; (3) signatures of equatorward propagating disturbances were detected in neutral density profiles.

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