Zobrazeno 1 - 10 of 161 pro vyhledávání: '"Michael T Rietveld"'
1
Excitation of Langmuir and Ion–Acoustic Turbulence in the High-Latitude Ionosphere by a High-Power HF Radio Wave Simultaneously Below and Above the F2-Layer Maximum
Autor: T. D. Borisova, Michael T. Rietveld, N. F. Blagoveshchenskaya, A. S. Kalishin, M. I. Häggström
Publikováno v: Radiophysics and Quantum Electronics. 62:793-806
We present the results of experimental studies of the generation peculiarities and features of the Langmuir and ion–acoustic turbulence in the F region of the high-latitude ionosphere excited by high-power HF O-mode radio waves emitted by the EISCA
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c3e0cbfb51aefb5502d57d6d5e27dca
https://doi.org/10.1007/s11141-020-10025-z
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2
History of the Tromsø ionosphere heating facility
Autor: Michael T. Rietveld, Peter Stubbe
We present the historical background of the construction of a major ionospheric heating facility, “Heating”, near Tromsø, Norway, in the 1970s by the Max Planck Institute for Aeronomy; we also detail the facility's subsequent operational history
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d890df16c5b8778ea6d224430295f7d
https://hdl.handle.net/10037/27377
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3
Ionospheric Beat-Wave Brillouin Scattering at Eiscat
Autor: Alan D. R. Phelps, Robert Bingham, J. T. Mendonça, Raoul Trines, Ruth Bamford, R.A. Cairns, Ian McCrea, Douglas C. Speirs, Bengt Eliasson, Andrew Senior, Michael T. Rietveld, Kevin Ronald
Publikováno v: 2021 IEEE International Conference on Plasma Science (ICOPS).
We report new results of a beat-wave driven Brillouin scattering experiment at EISCAT, Northern Norway, in which large amplitude radio waves with ordinary (O) and extraordinary (X) mode polarization are injected into the overhead ionosphere. The desc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9b5b8a72cd8f39394034102f3652ec7
https://doi.org/10.1109/icops36761.2021.9588542
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4
Investigation of incoherent scatter radar spectra features with stimulated electromagnetic emissions at EISCAT
Autor: Wayne Scales, Andrew Senior, M. Ruohoniemi, X. Shi, Alireza Mahmoudian, Michael Kosch, Michael T. Rietveld, B. Isham
Publikováno v: Advances in Space Research. 64:159-170
Electromagnetic (EM) and electrostatic (ES) emissions can be generated in the ionosphere by high-power high-frequency (HF) radio waves transmitted from the ground. The signatures of the EM emissions observed on the ground are known as Stimulated Elec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd8efbb4cccb1f3778c40d98dcc7d60
https://doi.org/10.1016/j.asr.2019.03.028
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5
Outshifted Plasma Lines Observed in Heating Experiments in the High-Latitude Ionosphere at Pump Frequencies Near Electron Gyroharmonics
Autor: I. Häggström, T. D. Borisova, Michael T. Rietveld, N. F. Blagoveshchenskaya
Publikováno v: Radiophysics and Quantum Electronics. 61:722-740
We present experimental results concerning the features and origin of the outshifted plasma lines in the high-latitude ionospheric F region, which are excited by high-power HF O-mode radio waves radiated by the EISCAT/Heating facility at pump-wave fr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e2b2775112b06a42581107d9843f545
https://doi.org/10.1007/s11141-019-09931-8
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6
Stimulated electromagnetic emissions spectrum observed during an X-mode heating experiment at the European Incoherent Scatter Scientific Association
Autor: Farideh Honary, Xiang Wang, V. L. Frolov, Tong Xu, Michael T. Rietveld, Chen Zhou
Publikováno v: Earth and Planetary Physics. 3:391-399
An extraordinary (X-mode) electromagnetic wave, injected into the ionosphere by the ground-based heating facility at Tromso, Norway, was utilized to modify the ionosphere on November 6, 2017. The high-power high-frequency transmitter facility located
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::267d7d4c1431eba4eb4412c1df49122f
https://doi.org/10.26464/epp2019042
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9
Conditions for Topside Ion Line Enhancements
Autor: Theresa Rexer, Michael T. Rietveld, Thomas Leyser, Björn Gustavsson
Enhanced ion line spectra as a response to magnetic field-aligned high frequency (HF) pumping of the overdense polar ionosphere with left-handed circular polarization, can be observed at the top and bottomside F-region ionosphere under certain condit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d91de673a758baf0bca78c8f9b040295
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452195
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10
Neutral air turbulence in the mesosphere and associated polar mesospheric summer echoes (PMSEs)
Autor: Michael T. Rietveld, Wayne Scales, H. Pinedo, Alireza Mahmoudian, Michael Kosch
This paper presents the first simultaneous four radar frequency observations of the PMSE region under varying neutral air turbulence conditions. Radar frequencies of 8, 56, 224, and 930 MHz are used in this study. Three days of experimental observati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1daa7a126c9382b3af521217f0cc6f3d
https://doi.org/10.5194/angeo-2020-81
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