Generation of ULF waves by electric or magnetic dipoles
作者： K. J. Harker
关键词: Ionospheric dynamo region 、 Magnetic field 、 Alfvén wave 、 Ionosphere 、 Computational physics 、 Earth's magnetic field 、 Geophysics 、 Physics 、 Magnetic dipole 、 L-shell 、 Field strength 、 Earth-Surface Processes 、 Ecology (disciplines) 、 Earth and Planetary Sciences (miscellaneous) 、 Space and Planetary Science 、 Palaeontology 、 Forestry 、 Aquatic science 、 Atmospheric Science 、 Soil science 、 Geochemistry and Petrology 、 Oceanography 、 Water Science and Technology
摘要: The generation of ULF waves by ground-based magnetic and electric dipoles is studied with a simplified model consisting three adjoining homogeneous regions representing the ground, vacuum (free space) region, ionosphere. system assumed to be immersed in field an arbitrary tilt angle. By use Fourier techniques method stationary phase, analytic expressions are obtained for strength compressional Alfven Expressions also torsional wave ionosphere at ground level. Numerical results nonvertical geomagnetic level vertical field.
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