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Detailed Reference Information |
Ho, C.W. and Horwitz, J.L. (1993). Warm O+ polar wind and the De-1 polar cap electron density profile. Geophysical Research Letters 20: doi: 10.1029/93GL01980. issn: 0094-8276. |
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Theoretical steady state semikinetic polar wind density profiles, based on DE1/RIMS polar wind data [Chandler et al., 1991> at low altitudes (up to 3700 km), were obtained which agree very well with the power law (ne=490 r-3.85 cm-3) electron density profile measured by the DE1/PWI for high altitudes [Persoon et al., 1983> (2--5 RE). The polar wind is found to be O+ dominated for the full altitude range considered (up to 8 RE). Multiple solutions are obtained for various combinations of base altitude ion temperatures and electron temperatures, such that the densities fit the Persoon et al. profile. For example, good fits to measured density profile are found for low base ion temperatures (5000 K) and high electron temperatures (9000 K), and also for unheated H+ and O+ (3000 K) with electron temperatures of 11,000 K. Below 2.8 RE the theoretical polar wind density deviates somewhat from the r-3.85 power law. It is concluded that this theoretical polar wind density profile, with a sum of base electron and ion temperatures of 14,000 K, yields a close match with the measured DE-1 electron density profile. ¿ American Geophysical Union 1993 |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Magnetospheric Physics, Polar cap phenomena, Magnetospheric Physics, Magnetosphere-ionosphere interactions, Magnetospheric Physics, Auroral phenomena, Ionosphere, Ionosphere-magnetosphere interactions |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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