Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Mohammed Y. Boudjada"'
Autor:
Mohammed Y. Boudjada, Pier F. Biagi, Hans U. Eichelberger, Giovanni Nico, Patrick H. M. Galopeau, Anita Ermini, Maria Solovieva, Masashi Hayakawa, Helmut Lammer, Wolfgang Voller, Martin Pitterle
Publikováno v:
Remote Sensing, Vol 16, Iss 3, p 529 (2024)
We study the sub-ionospheric VLF transmitter signals recorded by the Austrian Graz station in the year 2020. Those radio signals are known to propagate in the Earth-ionosphere waveguide between the ground and lower ionosphere. The Austrian Graz facil
Externí odkaz:
https://doaj.org/article/382440d26a134e169f3dda42235387df
Autor:
Christoph Schirninger, Hans U. Eichelberger, Werner Magnes, Mohammed Y. Boudjada, Konrad Schwingenschuh, Andreas Pollinger, Bruno P. Besser, Pier F. Biagi, Maria Solovieva, Jindong Wang, Bingjun Cheng, Bin Zhou, Xuhui Shen, Magda Delva, Roland Lammegger
Publikováno v:
Remote Sensing, Vol 13, Iss 12, p 2360 (2021)
Processes and threats related to natural hazards play an important role in the evolution of the Earth and in human history. The purpose of this study is to investigate magnetic field variations measured at low Earth orbit (LEO) altitudes possibly ass
Externí odkaz:
https://doaj.org/article/acefeee415ea4640b1e58d8f9e939b2f
Autor:
Mohammed Y. Boudjada, Hans U. Eichelberger, Emad Al-Haddad, Werner Magnes, Patrick H. M. Galopeau, Xuemin Zhang, Andreas Pollinger, Helmut Lammer
Publikováno v:
Advances in Radio Science. 20:77-84
We report on the variation of electric power density linked to very low frequency (VLF) signal observed during the minimum of solar cycle 25. The detected VLF signal is emitted by the NWC radio station localized in the southern hemisphere, at 21.5∘
Autor:
Hans Eichelberger, Mohammed Y. Boudjada, Konrad Schwingenschuh, Bruno P. Besser, Daniel Wolbang, Maria Solovieva, Pier F. Biagi, Patrick Galopeau, Ghulam Jaffer, Özer Aydogar, Christoph Schirninger, Cosima Muck, Irmgard Jernej, Werner Magnes
In this study we examine earthquakes with magnitude M>5 in the year 2022 where the epicenters are crossed by sub-ionospheric narrowband VLF/LF radio links. The study regions are Italy, Aegean area, and the Balkan Peninsula. Ideal suited for this task
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5bd104a244f54687425fe293eee14e4
https://doi.org/10.5194/egusphere-egu23-8521
https://doi.org/10.5194/egusphere-egu23-8521
Autor:
Mohammed Y. Boudjada, Pier F. Biagi, Hans U. Eichelberger, Konrad Schwingenschuh, Patrick H.M. Galopeau, Masashi Hayakawa, Maria Solovieva, Helmut Lammer, Wolfgang Voller, Bruno Besser
We report on two earthquakes (EQs) that occurred in Croatia at a distance less than 200 km from the Austrian Graz facility (15.46°E, 47.03°N). Those EQs happened on March 22 and December 29, 2020, with magnitudes of Mw5.4 and Mw6.4, respectively. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b09aaeb3bca5df81bb7b0d07083084
https://doi.org/10.5194/egusphere-egu23-9395
https://doi.org/10.5194/egusphere-egu23-9395
Autor:
Patrick H. M. Galopeau, Ashanthi S. Maxworth, Mohammed Y. Boudjada, Hans U. Eichelberger, Mustapha Meftah, Pier F. Biagi, Konrad Schwingenschuh
Earthquakes are one of the most frequently occurring natural disasters. Many indications have been collected on the presence of seismo-ionospheric perturbations preceding such tragic phenomena. Radio techniques are the essential tools leading the det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afa9c70812fad1b5af0dfa0452991598
https://doi.org/10.5194/gi-2023-1
https://doi.org/10.5194/gi-2023-1
Autor:
Mohammed Y. Boudjada, Ahmed Abou el-Fadl, Helmut Lammer, Eimad Al-Haddad, Patrick H. M. Galopeau
Publikováno v:
Advances in Radio Science, Vol 18, Pp 83-87 (2020)
Advances in Radio Science
Advances in Radio Science, Copernicus Publications, 2020, 18, pp.83-87. ⟨10.5194/ars-18-83-2020⟩
Advances in Radio Science
Advances in Radio Science, Copernicus Publications, 2020, 18, pp.83-87. ⟨10.5194/ars-18-83-2020⟩
In this study, we report on the occurrence of solar Type III radio bursts recorded by radio and plasma wave experiment (RPWS) experiment onboard Cassini spacecraft. This instrument is designed to investigate the Saturn's plasma environment and sub-au
Autor:
Mohammed Y. Boudjada, Pier Francesco Biagi, Hans Ulrich Eichelberger, Patrick H.M. Galopeau, Konrad Schwingenschuh, Maria Solovieva, Helmut Lammer, Wolfgang Voller, Masashi Hayakawa
We report in our study on earthquakes that occurred in Croatia and Slovenia in the period from 1 Jan. 2020 to 31 Dec. 2021. Those seismic events happened in a localized region confined between 13.46°E and 17.46°E in longitude and 45.03°N and 49.03
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc08b3aa8a08807959268868ee7323f9
https://doi.org/10.5194/egusphere-egu22-10161
https://doi.org/10.5194/egusphere-egu22-10161
Autor:
Patrick H. M. Galopeau, Mustapha Meftah, Philippe Keckhut, Kévin Grossel, Véronique Rannou, Fabrice Boust, Huy Khang Phan, Vincent Turpaud, Mohammed Y. Boudjada, Hans U. Eichelberger
INSPIRE-SAT 7 is a French 2 Unit CubeSat weighting approximately 3 kg, very similar to the satellite UVSQ-SAT which was launched on 24 January 2021. Its main purpose is the measurement of the Earth’s radiation budget at the top of the atmosphere an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bf6e558a6447d98cd4218a34c645973
https://doi.org/10.5194/egusphere-egu22-10052
https://doi.org/10.5194/egusphere-egu22-10052
Autor:
Sami Sawas, Valery V. Denisenko, Patrick H. M. Galopeau, Helmut Lammer, Werner Magnes, Hans Eichelberger, Konrad Schwingenschuh, Bruno P. Besser, Mohammed Y. Boudjada
Publikováno v:
Annales Geophysicae, Vol 38, Pp 765-774 (2020)
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2020, 38, pp.765-774. ⟨10.5194/angeo-38-765-2020⟩
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2020, 38, pp.765-774. ⟨10.5194/angeo-38-765-2020⟩
The ICE (Instrument Champ Électrique) experiment on board the DEMETER (Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions) satellite recorded frequency-banded wave emissions below the electron cyclotron frequency, with band