Zobrazeno 1 - 10
of 257
pro vyhledávání: '"A. Rozhnoi"'
Autor:
Y. Rapoport, V. Grimalsky, V. Fedun, O. Agapitov, J. Bonnell, A. Grytsai, G. Milinevsky, A. Liashchuk, A. Rozhnoi, M. Solovieva, A. Gulin
Publikováno v:
Annales Geophysicae, Vol 38, Pp 207-230 (2020)
The modeling of very low-frequency (VLF) electromagnetic (EM) beam propagation in the Earth–ionosphere waveguide (WGEI) is considered. A new tensor impedance method for modeling the propagation of electromagnetic beams in a multi-layered and inhomo
Externí odkaz:
https://doaj.org/article/0f5b70da4c2247e2bf0a514c84a06e67
Autor:
A. Rozhnoi, M. Solovieva, V. Fedun, P. Gallagher, J. McCauley, M. Y. Boudjada, S. Shelyag, H. U. Eichelberger
Publikováno v:
Annales Geophysicae, Vol 37, Pp 843-850 (2019)
In this paper we analysed sudden phase anomalies (SPAs) of VLF–LF signals recorded at Graz (Austria), Birr (Ireland) and Moscow (Russia) stations during two strong solar flares in September 2017. The first X-class 9.3 flare occurred on 6 September
Externí odkaz:
https://doaj.org/article/b054c0f84bb14148b5b34b29baf8ff04
Autor:
A. Rozhnoi, M. Solovieva, S. Shalimov, D. Ouzounov, P. Gallagher, G. Verth, J. McCauley, S. Shelyag, V. Fedun
Publikováno v:
Earth and Space Science, Vol 7, Iss 2, Pp n/a-n/a (2020)
Abstract An experimental study of the phase and amplitude observations of sub‐ionospheric very low and low frequency (VLF/LF) signals is performed to analyze the response of the lower ionosphere during the 21 August 2017 total solar eclipse in the
Externí odkaz:
https://doaj.org/article/24f3f60e73cc477da0d5adaf2969a611
Publikováno v:
Annales Geophysicae, Vol 32, Pp 1455-1462 (2014)
The disturbances of very low and low frequency signals in the lower mid-latitude ionosphere caused by magnetic storms, proton bursts and relativistic electron fluxes are investigated on the basis of VLF–LF measurements obtained in the Far East an
Externí odkaz:
https://doaj.org/article/fbd475c32a9e4e38916928ca3162edc3
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 14, Iss 10, Pp 2671-2679 (2014)
Very low and low frequency (VLF/LF) data recorded in the Far Eastern stations Petropavlovsk-Kamchatsky (158.92° E, 53.15° N), Yuzhno-Sakhalinsk (142.75° E, 46.95° N) and Yuzhno-Kurilsk (145.861° E, 44.03° N) are investigated to study the meteor
Externí odkaz:
https://doaj.org/article/20d406e452a94053b30e1b95580aa2be
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 5, Iss 4, Pp 285-292 (2014)
The subionospheric data from a Japanese very low frequency/low frequency (VLF/LF) receiving station at Moshiri, Hokkaido, are used to detect the response of the lower ionosphere to the tsunami triggered by the 2011 Tohoku earthquake. Disturbances in
Externí odkaz:
https://doaj.org/article/26158e1ec1024955b717e9911268fe63
Publikováno v:
Annales Geophysicae, Vol 32, Pp 449-463 (2014)
In this paper we develop a new method for the analysis of excitation and propagation of planetary electromagnetic waves (PEMW) in the ionosphere of the Earth. The nonlinear system of equations for PEMW, valid for any height, from D to F regions, i
Externí odkaz:
https://doaj.org/article/43f27451dc4a4d58a47094d03868922a
Autor:
K. Schwingenschuh, G. Prattes, B. P. Besser, K. Močnik, M. Stachel, Ö. Aydogar, I. Jernej, M. Y. Boudjada, G. Stangl, A. Rozhnoi, M. Solovieva, P. F. Biagi, M. Hayakawa, H. U. Eichelberger
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 4, Pp 1121-1127 (2011)
In this paper we describe the Graz seismo-electromagnetic very low frequency (VLF) facility, as part of the European VLF receiver network, together with the scientific objectives and results from two years operation. After a brief technical summary o
Externí odkaz:
https://doaj.org/article/fcae884b21e54c74949a3f821d3679c2
Autor:
A. Rozhnoi, M. Solovieva, O. Molchanov, P.-F. Biagi, M. Hayakawa, K. Schwingenschuh, M. Boudjada, M. Parrot
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 10, Iss 3, Pp 529-534 (2010)
Signals of two Japanese transmitters (22.2 kHz and 40 kHz) recorded on the ground VLF/LF station in Petropavlovsk-Kamchatsky and on board the DEMETER French satellite have been analyzed during a seismic activity in Japan in May–June 2008. The perio
Externí odkaz:
https://doaj.org/article/278b91feef6e4101a9a84c1e2eea1552
Autor:
A. Ermini, L. Castellana, T. Maggipinto, P. F. Biagi, M. Boudjada, K. Schwingenschuh, O. Molchanov, M. Solovieva, A. Rozhnoi, M. Hayakawa
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 9, Iss 5, Pp 1727-1732 (2009)
The VLF/LF radio signals method for studying preseimic activity is applied to the Abruzzo earthquake (M=6.3, 6 April 2009). The data collected by three receivers located in Moscow (Russia), Graz (Austria) and Bari (Italy) at about 3000 km, 1000 km an
Externí odkaz:
https://doaj.org/article/d8e9fdeef35747ceaaec718905585878