Search Results - "SELCHER, C. A"

Electron and ion Bernstein waves excited in the ionosphere by high power EM waves at the second harmonic of the electron cyclotron frequency by Bernhardt, P. A., Selcher, C. A., Kowtha, S.

“…The transmission of a high power electromagnetic (EM) waves from the HAARP facility in Alaska can excite stimulated electromagnetic emissions offset from the…”
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Determination of the electron temperature in the modified ionosphere over HAARP using the HF pumped Stimulated Brillouin Scatter (SBS) emission lines by BERNHARDT, P. A, SELCHER, C. A, LEHMBERG, R. H, RODRIGUEZ, S, THOMASON, J, MCCARRICK, M, FRAZER, G

“…An ordinary mode electromagnetic wave can decay into an ion acoustic wave and a scattered electromagnetic wave by a process called stimulated Brillouin scatter…”
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On ion gyro-harmonic structuring in the stimulated electromagnetic emission spectrum during second electron gyro-harmonic heating by SAMIMI, A, SCALES, W. A, BERNHARDT, P. A, BRICZINSKI, S. J, SELCHER, C. A, MCCARRICK, M. J

“…Recent observations show that, during ionospheric heating experiments at frequencies near the second electron gyro-harmonic, discrete spectral lines separated…”
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Ionospheric modification at twice the electron cyclotron frequency by DJUTH, F. T, PEDERSEN, T. R, GERKEN, E. A, BERNHARDT, P. A, SELCHER, C. A, BRISTOW, W. A, KOSCH, M. J

“…In 2004, a new transmission band was added to the HAARP high-frequency ionospheric modification facility that encompasses the second electron cyclotron…”
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Radio tomographic imaging of sporadic-E layers during SEEK-2 by Bernhardt, P. A., Selcher, C. A., Siefring, C., Wilkens, M., Compton, C., Bust, G., Yamamoto, M., Fukao, S., Takayuki, O., Wakabayashi, M., Mori, H.

“…During the SEEK-2 Rocket Campaign in August 2002, a Dual Band Beacon (DBB) transmitting to Ground Receivers provided unique data on E-Region electron…”
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Stimulated Brillouin scatter in a magnetized ionospheric plasma by Bernhardt, P A, Selcher, C A, Lehmberg, R H, Rodriguez, S P, Thomason, J F, Groves, K M, McCarrick, M J, Frazer, G J

“…High power electromagnetic waves transmitted from the HAARP facility in Alaska can excite low-frequency electrostatic waves by magnetized stimulated Brillouin…”
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Ground and Space-Based Measurement of Rocket Engine Burns in the Ionosphere by Bernhardt, P. A., Ballenthin, J. O., Baumgardner, J. L., Bhatt, A., Boyd, I. D., Burt, J. M., Caton, R. G., Coster, A., Erickson, P. J., Huba, J. D., Earle, G. D., Kaplan, C. R., Foster, J. C., Groves, K. M., Haaser, R. A., Heelis, R. A., Hunton, D. E., Hysell, D. L., Klenzing, J. H., Larsen, M. F., Lind, F. D., Pedersen, T. R., Pfaff, R. F., Stoneback, R. A., Roddy, P. A., Rodriquez, S. P., San Antonio, G. S., Schuck, P. W., Siefring, C. L., Selcher, C. A., Smith, S. M., Talaat, E. R., Thomason, J. F., Tsunoda, R. T., Varney, R. H.

“…On-orbit firings of both liquid and solid rocket motors provide localized disturbances to the plasma in the upper atmosphere. Large amounts of energy are…”
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Simultaneous inversion of total electron content and UV radiance data to produce F region electron densities by Dymond, K. F., McDonald, S. E., Coker, C., Bernhardt, P. A., Selcher, C. A.

“…The High Resolution Airglow and Aurora Spectroscopy (HIRAAS) experiment was launched aboard ARGOS on 23 February 1999. The HIRAAS experiment operated from…”
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Effect of ionospheric self-conditioning and preconditioning on the broad upshifted maximum component of stimulated electromagnetic emission by Wagner, L. S., Bernhardt, P. A., Goldstein, J. A., Selcher, C. A., Frolov, V. L., Sergeev, E. N.

“…Stimulated electromagnetic emissions (SEE) are high‐frequency radio emissions that are generated during high‐power, high‐frequency, ordinary mode (O‐mode),…”
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Simultaneous Observation of Multiple Nonlocal Eigenmodes of an Inhomogeneity-Driven Plasma Instability by Koepke, M. E., Carroll, J. J., Zintl, M. W., Selcher, C. A., Gavrishchaka, V.

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Optical remote sensing of the thermosphere with HF pumped artificial airglow by Bernhardt, P. A., Wong, M., Huba, J. D., Fejer, B. G., Wagner, L. S., Goldstein, J. A., Selcher, C. A., Frolov, V. L., Sergeev, E. N.

“…Optical emissions excited by high‐power radio waves in the ionosphere can be used to measure a wide variety of parameters in the thermosphere. Powerful…”
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Imaging of ionospheric density structures and plasma drifts using artificial illumination by high-power radio waves by Bernhardt, P.A., Selcher, C.A., Siefring, C.L., Gerken, E.

“…Artificial aurora from energetic electron fluxes may be generated by powerful radio waves beamed into the ionosphere. This radio induced aurora (RIA) provides…”
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Electron and ion Bernstein waves excited in the ionosphere by high power EM waves at the second harmonic of the electron cyclotron frequency: BERNSTEIN WAVES EXCITED BY EM WAVES by Bernhardt, P. A., Selcher, C. A., Kowtha, S.

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Ionospheric observations of F region artificial plasma turbulence, modified by powerful X-mode radio waves by Frolov, V. L., Kagan, L. M., Sergeev, E. N., Komrakov, G. P., Bernhardt, P. A., Goldstein, J. A., Wagner, L. S., Selcher, C. A., Stubbe, P.

“…We study the influence of additional X‐mode heating of the ionospheric plasma on the features of artificial ionospheric turbulence, induced in the ionospheric…”
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Simultaneous inversion of total electron content and UV radiance data to produce F region electron densities : Ionospheric Effects on Radiowave Systems (IES), Part II by DYMOND, K. F, MCDONALD, S. E, COKER, C, BERNHARDT, P. A, SELCHER, C. A

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Spatiotemporal laser perturbation of competing ionization waves in a neon glow discharge by Weltmann, KD, Koepke, ME, Selcher, CA

“…The experimental verification of spatiotemporal periodic pulling, a specific but universal phenomenon associated with driven, nonlinear, spatiotemporal…”
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Radio tomographic imaging of sporadic-E layers during SEEK-2 : SEEK-2 (Sporadic-E. Experiment over Kyushu 2) by BERNHARDT, P. A, SELCHER, C. A, MORI, H, SIEFRING, C, WILKENS, M, COMPTON, C, BUST, G, YAMAMOTO, M, FUKAO, S, TAKAYUKI, O, WAKABAYASHI, M

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Optical remote sensing of the thermosphere with HF pumped artificial airglow by Bernhardt, P A, Wong, M, Huba, J D, Fejer, B G, Wagner, L S, Goldstein, J A, Selcher, C A, Frolov, V L, Sergeev, E N

“…Optical emissions excited by high-power radio waves in the ionosphere can be used to measure a wide variety of parameters in the thermosphere. Powerful HF…”
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Ionospheric observations of F region artificial plasma turbulence, modified by powerful X-mode radio waves by Frolov, V L, Kagan, L M, Sergeev, E N, Komrakov, G P, Bernhardt, P A, Goldstein, J A, Wagner, L S, Selcher, C A, Stubbe, P

“…We study the influence of additional X-mode heating of the ionospheric plasma on the features of artificial ionospheric turbulence, induced in the ionospheric…”
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HF Stimulated Electromagnetic Emissions and radar observations of ionospheric heating from HAARP by Briczinski, S. J., Bernhardt, P. A., Selcher, C. A., Watkins, B. J.

“…High power radio waves excite electrostatic waves in the ionosphere. Electrostatic waves can be detected either by mode conversion into Stimulated…”
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