NDLI: On the self-consistent algorithm for numerical simulation of the global geomagnetic disturbances and associated electric current spreading to low latitudes

Content Provider	IEEE Xplore Digital Library
Author	Alperorich, L. Fidel, B.
Copyright Year	2001
Description	Author affiliation: Dept. of Geophys. & Planetary Sci., Tel Aviv Univ., Israel (Alperorich, L.)
Abstract	We present a finite elements algorithm (FEA) for study of the global current systems produced by extra low frequency electromagnetic disturbances like hydromagnetic waves, solar-quite daily variations, and so on. All these problems can be reduced to Laplace's equation on a thin nonhomogeneous anisotropic shell. Our approach is based on satisfying this law within each elementary cell of the numerical grid. The main strength of the proposed algorithm is in the widely used finite difference method (FDM). It was found that the FDM accumulates numerical errors caused by numerical 'diffusion'. This artificial diffusion is a sequence of the finite difference representation of the differential operators of the original Laplace equation in a nonhomogeneous case.
Starting Page	125
Ending Page	128
File Size	176448
Page Count	4
File Format	PDF
ISBN	0780370708
DOI	10.1109/APS.2001.960048
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical simulation Geomagnetism Conductivity Finite difference methods Ionosphere Finite element methods Laplace equations Anisotropic magnetoresistance Testing Tensile stress
Content Type	Text
Resource Type	Article

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