Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Paul Kossey"'
Publikováno v:
IEEE Transactions on Plasma Science. 32:362-369
Energetic electrons trapped in the radiation belts undergo bounce motion about the geomagnetic equator. The behaviors of the trajectories of these electrons interacting with a large amplitude whistler wave are explored, with the electron energy and w
Autor:
D Sentman, P Jastrzebski, Paul Kossey, Daniel Bivolaru, M.C. Lee, R.J. Riddolls, S H Lee, Spencer Kuo
Publikováno v:
Physica Scripta. 67:448-452
Modulation of electrojet currents by amplitude-modulated HF heating waves creates ionospheric antenna currents to generate ELF/VLF waves. The dependence of the generation efficiency on the HF heating wave modulation scheme and frequency is studied ex
Publikováno v:
Physics of Plasmas. 9:315-321
Extra-low-frequency (ELF) wave generation by modulated polar electrojet currents is studied. The amplitude-modulated high-frequency (HF) heating wave excites a stimulated thermal instability to enhance the electrojet current modulation by the passive
Publikováno v:
Journal of Geophysical Research: Space Physics. 104:19889-19894
Generation of short-scale field-aligned electron density irregularities on a short timescale ( 1 s) by ionospheric topside sounder pulses is studied. It is a four-wave parametric coupling process, in which a sounder-launched Z mode pump wave decays i
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:4063-4069
Generation of ELF and VLF waves in the HF heater modulated polar electrojet is numerically studied. Illuminated by an amplitude modulated HF heater, the electron temperature of the electrojet is modulated accordingly. This, in turn, causes the modula
Publikováno v:
Geophysical Research Letters. 24:2969-2972
It is shown that upper hybrid waves generated by the HF heater wave in the Tromso' heating experiments can excite oscillating two stream instability near the upper hybrid resonance layer of the heater wave. The sidebands of the investigated parametri
Publikováno v:
Journal of Plasma Physics. 53:253-266
The dependences of the propagation characteristics of an intense microwave pulse on the intensity, frequency, width and shape of the pulse in an air- breakdown environment are examined. Numerical simulations lead to a useful empirical relation P3W =
Publikováno v:
Journal of Geophysical Research: Space Physics. 117
[1] Beat-wave generation of very low frequency (VLF) waves by two HF heaters in the ionosphere is formulated theoretically and demonstrated experimentally. The heater-induced differential thermal pressure force and ponderomotive force, which dominate
Publikováno v:
Geophysical Research Letters. 38
[1] Theory of a beat-wave mechanism for very low frequency (VLF) wave generation in the ionosphere is presented. The VLF current is produced by beating two high power HF waves of slightly different frequencies through the nonlinearity and inhomogenei
Publikováno v:
Journal of Geophysical Research: Space Physics. 116
[1] Under-dense HF heating experiments were conducted near local solar noon as well as in the nighttime with the HF heater transmitting at 9.1 MHz directed along the geomagnetic zenith and run at 2 min on and 2 min off. The effective isotropic radiat