The auroral energy deposition over the polar ionosphere during substorms

Details The auroral energy deposition over the polar ionosphere during substorms The auroral energy deposition over the polar ionosphere during substorms

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989p%26ss...37..239a&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 37, March 1989, p. 239-252. Research supported by the National Institute of P

Physics

10

Auroral Electrojets, Earth Ionosphere, Energy Dissipation, Polar Substorms, Dmsp Satellites, Geomagnetism, Interplanetary Magnetic Fields, Ohmic Dissipation, Resistance Heating

Scientific paper

The magnetogram-inversion method of Kamide et al. (1981) is used to estimate the global Joule heating distribution for the period of July 23-24, 1983. It is shown that regions of significant Joule heating are closely associated with the auroral electrojets in the dawn and dusk sectors, and that the major Joule heating usually occurs poleward of the major particle heating region, particularly in the morning sector. The particle heating rate is found to be generally more prominent during the maximum phase of substorms and afterward than during the preexpansion phase.

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