Nightside plasmapause positions observed by DE-1 as a function of geomagnetic indices: Comparison with whistler observations and model calculations |
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| Institution: | 1. Department of Nutrition, University of North Carolina at Greensboro (UNCG), Greensboro, NC;2. Department of Medicine, University of Chicago, Chicago, IL;3. Plants for Human Health Institute, NCSU-NCRC, Kannapolis, NC;4. Department of Internal Medicine/Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC;5. Center for Translational Biomedical Research, UNCG-NCRC, Kannapolis, NC;1. Martin-Luther-University Halle-Wittenberg, Department of Medicine III;2. Martin-Luther-University Halle-Wittenberg, Institute of Medical Epidemiology, Biostatistics and Informatics;3. Sana Klinikum Lichtenberg, Department of Medicine II, Berlin;1. Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;2. Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan |
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| Abstract: | We have analysed 28 plasmapause crossings made by the DE1 satellite in the night local time sector (from January to March 1982). Different signatures obtained by the Retarding Ion Mass Spectrometer instrument (RIMS) have been used for this analysis. The observed plasmapause positions (Lpp) have been organized as a function of geomagnetic indices. They are compared with the empirical relationship deduced by Carpenter and Parks (1973) from whistler observations. Moreover, the dependence of Lpp versus Kp has been inferred from model calculation using Kp dependent electric and magnetic fields derived from McIlwain's (1974) E3H electric field model and M2 magnetic field model respectively. Stationary models, as well as time dependent ones, have been used to determine the positions of the plasmapause. The results of the model calculations are compared to the observations. |
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