Physics – Plasma Physics
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jgra..11611203h&link_type=abstract
Journal of Geophysical Research, Volume 116, Issue A11, CiteID A11203
Physics
Plasma Physics
Magnetospheric Physics: Magnetosphere: Inner, Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Plasmasphere, Magnetospheric Physics: Instruments And Techniques, Space Plasma Physics: Mathematical And Numerical Techniques (0500, 3200)
Scientific paper
A two-step algorithm for plasmasphere reconstruction from images obtained from the Moon-based extreme ultraviolet (EUV) imager on the Chang'e-3 mission is described and illustrated using simulation data obtained from a dynamic global core plasma model (DGCPM). According to the line of sight (LOS) integration patterns in Moon-based EUV imaging and the outline characteristics of the images, the equatorial plane plasmapause is reconstructed with the Minimum L Algorithm by adopting a magnetic dipole approximation. Having obtained the plasmapause locations, the quasi three-dimensional (3-D) plasmasphere, which is put into the Genetic Algorithm (GA) as an initial guess, is constructed with a statistical model assuming that the density along a field line is a constant. In this way, the plasmaspheric structure and the quasi 3-D plasmaspheric density are extracted from the Moon-based EUV images. This work provides a feasible and applicable method for data analysis of Moon-based EUV imaging, which is to be realized on the Chang'e-3 mission in the Second Phase of Chinese Lunar Exploration Program.
Chen Bo
Fok Mei Ching
He Fei
Zhang Xiao-Xin
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