Search Results - "Bösinger, T."

Sprite-Producing Lightning-Ionosphere Coupling and Associated Low-Frequency Phenomena by Shalimov, S. L., Bösinger, T.

“…Theoretical and experimental evidence is collected for additional ionization regions in the mesosphere above lightning discharges and their connection with…”
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Proton aurora related to intervals of pulsations of diminishing periods by Yahnin, A. G., Yahnina, T. A., Frey, H. U., Bösinger, T., Manninen, J.

“…Geomagnetic pulsations in the Pc1 frequency range are believed to be an indicator of electromagnetic ion cyclotron waves arriving from the equatorial…”
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Pulsating nighttime magnetic background noise in the upper ULF band at low latitudes by Bösinger, T., Demekhov, A. G., Ermakova, E. N., Haldoupis, C., Zhou, Q.

“…We model long‐period (~2 h) irregular pulsations in the ellipticity of magnetic background noise (MBN) in the upper ULF band which were frequently observed…”
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On distant excitation of the ionospheric Alfvén resonator by positive cloud-to-ground lightning discharges by Shalimov, S., Bösinger, T.

“…On theoretical and experimental ground it is shown that the occurrence rate of distant (r ≥ 2000 km) positive cloud‐to‐ground (+CG) lightning discharges can be…”
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Recent Results from Studies of Electric Discharges in the Mesosphere by Neubert, T., Rycroft, M., Farges, T., Blanc, E., Chanrion, O., Arnone, E., Odzimek, A., Arnold, N., Enell, C.-F., Turunen, E., Bösinger, T., Mika, Á., Haldoupis, C., Steiner, R. J., van der Velde, O., Soula, S., Berg, P., Boberg, F., Thejll, P., Christiansen, B., Ignaccolo, M., Füllekrug, M., Verronen, P. T., Montanya, J., Crosby, N.

“…The paper reviews recent advances in studies of electric discharges in the stratosphere and mesosphere above thunderstorms, and their effects on the…”
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Evidence for subauroral proton flashes on the dayside as the result of the ion cyclotron interaction by Yahnina, T. A., Frey, H. U., Bösinger, T., Yahnin, A. G.

“…A series of proton aurora flashes produced by the precipitation of energetic protons equatorward of the main auroral oval was observed between 0700 and 1300 UT…”
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On ULF Signatures of Lightning Discharges by Bösinger, T., Shalimov, S. L.

“…Recent works on magnetic signatures due to distant lightning discharges are reviewed. Emphasis is laid on magnetic signatures in the ULF range (in the old…”
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“Early/slow” events: A new category of VLF perturbations observed in relation with sprites by Haldoupis, C., Steiner, R. J., Mika, Á., Shalimov, S., Marshall, R. A., Inan, U. S., Bösinger, T., Neubert, T.

“…Analysis of subionospheric VLF transmissions, observed in relation with sprites, has led to the identification of a new category of VLF perturbations caused by…”
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Fine structure in ionospheric Alfvén resonator spectra observed at low latitude (L = 1.3) by Bösinger, T., Demekhov, A. G., Trakhtengerts, V. Y.

“…A fine spectral structure in the electromagnetic background noise at 0.1 to 6 Hz is observed at a low latitude station. Its frequency scale falls roughly…”
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Spectral properties of the ionospheric Alfvén resonator observed at a low-latitude station (L = 1.3) by Bösinger, T., Haldoupis, C., Belyaev, P. P., Yakunin, M. N., Semenova, N. V., Demekhov, A. G., Angelopoulos, V.

“…Data of the first half year of operation of a sensitive search coil magnetometer at a remote site in the island of Crete, Greece (35.15°N, 25.20°E), was used…”
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A quantitative analysis of the diurnal evolution of Ionospheric Alfvén resonator magnetic resonance features and calculation of changing IAR parameters by HEBDEN, S. R, ROBINSON, T. R, WRIGHT, D. M, YEOMAN, T, RAITA, T, BÖSINGER, T

“…Resonance features of the Ionospheric Alfvén Resonator (IAR) can be observed in pulsation magnetometer data from Sodankylä, Finland using dynamic spectra…”
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Studying the Variations of the Broadband Spectral Maximum Parameters in the Natural ULF Fields by Ermakova, E. N., Kotik, D. S., V.Ryabov, A., V.Pershin, A., Bösinger, T., Zhou, K

“…We study the diurnal dynamics of the broadband spectral maximum in the polarization parameter spectra of ULF background noise. According to the monitoring data…”
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Magnetic-inclination effects in the spectral resonance structure of the ionospheric Alfvén resonator by Bösinger, T., Ermakova, E. N., Haldoupis, C., Kotik, D. S.

“…Based on recent developments in the formalism governing the spectral resonance structures (SRS) of the Ionospheric Alfvén resonator (IAR) as observed on the…”
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A power line as a tunable ULF-wave radiator: Properties of artificial signal at distances of 200 to 1000 km by Ermakova, E. N., Kotik, D. S., Polyakov, S. V., Bösinger, T., Sobchakov, L. A.

“…A power line of 108 km length in the Kola Peninsula, Russia, was fed by a tunable AC current in the upper ULF and lower ELF frequency band. Its magnetic…”
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First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere by KERO, A, BÖSINGER, T, POLLARI, P, TURUNEN, E, RIETVELD, M

“…The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the…”
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An alternative explanation for the ultra-slow tail of sprite-associated lightning discharges by Shalimov, S.L., Bösinger, T.

“…Stimulated by experimental direct and indirect evidence of highly ionized plasma columns above sprite-associated lightning discharges in the upper mesosphere…”
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The effective altitude range of the ionospheric Alfvén resonator studied by high-altitude EISCAT measurements by Prikner, K., Mursula, K., Bösinger, T., Feygin, F.Z., Raita, T.

“…The altitude profiles of ionospheric plasma obtained by the EISCAT incoherent scatter radar can be used to study the effect of the ionospheric Alfvén resonator…”
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Dispersive changes in magnetic background noise polarization at 0.1 to 6Hz during sunset and sunrise at L=1.3 by Bösinger, T., Shalimov, S. L.

“…Polarization properties of the magnetic background noise (MBN) and the spectral resonance structure (SRS) of the ionospheric Alfvén resonator (IAR) below the…”
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Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere by Blagoveshchenskaya, N. F., Borisova, T. D., Kornienko, V. A., Thidé, B., Rietveld, M. T., Kosch, M. J., Bösinger, T.

“…Experimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the…”
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Pc 1 waves and ionospheric Alfvén resonator: Generation or filtration? by Demekhov, A. G., Trakhtengerts, V. Yu, Bösinger, T.

“…We analyze vertical profiles of Pc 1 wave fields produced in the ionosphere by Alfvén waves of magnetospheric origin. We show that the ratio of the electric…”
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