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7 results on '"G. E. K. Lockwood"'

3. EXCITATION OF CYCLOTRON SPIKES IN THE IONOSPHERIC PLASMA

Author

G. E. K. Lockwood

Subjects
Physics, Cyclotron, General Physics and Astronomy, Electron cyclotron resonance, Fourier transform ion cyclotron resonance, Physics::Geophysics, L-shell, Magnetic field, law.invention, law, Physics::Space Physics, Ionosphere, Atomic physics, Antenna (radio), Excitation
Abstract

The occurrence of resonances in the ionosphere at frequencies which are harmonics of the gyrofrequency have been detected by the topside-sounder satellite, Alouette I. It has been observed that the occurrence of cyclotron spikes on ionograms is a function of the angle between the antenna and the earth's magnetic field. The number of cyclotron spikes observed is a maximum when the appropriate antenna is parallel to the earth's magnetic field.

Published
1965
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5. A Modified Iteration Technique for Use in Computing Electron Density Profiles from Topside Ionograms

Author

G. E. K. Lockwood

Subjects
Alternative methods, Electron density, Theoretical computer science, Computation, General Earth and Planetary Sciences, Electrical and Electronic Engineering, Condensed Matter Physics, Mathematics, Computational physics
Abstract

An iteration technique used in the computation of topside electron density profiles from topside ionograms of Jackson, 1969, fails to converge for some ionograms. An alternative method of iteration, which converges for all ionograms tested, is suggested.

Published
1970
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