HF modulated ionospheric currents

	Become an AGU Member Subscribe to AGU Journals



Editor's Highlight Read Full Article (file size: 1331659 bytes) Cited by GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L23101, doi:10.1029/2007GL031724, 2007 HF modulated ionospheric currents J. A. Payne Space, Telecommunications, and Radioscience Laboratory, Stanford University, Stanford, California, USA U. S. Inan Space, Telecommunications, and Radioscience Laboratory, Stanford University, Stanford, California, USA F. R. Foust Space, Telecommunications, and Radioscience Laboratory, Stanford University, Stanford, California, USA T. W. Chevalier Space, Telecommunications, and Radioscience Laboratory, Stanford University, Stanford, California, USA T. F. Bell Space, Telecommunications, and Radioscience Laboratory, Stanford University, Stanford, California, USA Abstract The HAARP HF facility is used to modulate the components of the auroral electrojet that flow in the D-region of the ionosphere, creating ELF/VLF radiation which is then measured at a receiver co-located with the HAARP HF antenna. An HF heating model is coupled to a full wave plasma interaction FDTD code to determine the ELF/VLF response of the ionospheric plasma to the modulated HF stimulation. The predicted FDTD fields on the ground are found to be in remarkable agreement with those measured at a receiver co-located with HAARP. The FDTD code also predicts an upwardly propagating whistler mode that is tightly bound to the magnetic field lines. Received 28 August 2007; accepted 26 October 2007; published 1 December 2007. Keywords: ELF/VLF; HF modulation. Index Terms: 6984 Radio Science: Waves in plasma (7867); 6964 Radio Science: Radio wave propagation; 6944 Radio Science: Nonlinear phenomena (4400, 7839); 6929 Radio Science: Ionospheric physics (1240, 2400); 0545 Computational Geophysics: Modeling (4255). Read Full Article (file size: 1331659 bytes) Cited by Citation: Payne, J. A., U. S. Inan, F. R. Foust, T. W. Chevalier, and T. F. Bell (2007), HF modulated ionospheric currents, Geophys. Res. Lett., 34, L23101, doi:10.1029/2007GL031724. Copyright 2007 by the American Geophysical Union.

Abstract