Zobrazeno 1 - 10
of 122
pro vyhledávání: '"G. Balasis"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 15, Pp n/a-n/a (2024)
Abstract Currently, there is no clear understanding of the comprehensive set of variables that controls fluxes of relativistic electrons within the outer radiation belt. Herein, the methodology based on causal inference is applied for identification
Externí odkaz:
https://doaj.org/article/f1886b6fcb514673bd63cbb98fe8de32
Publikováno v:
Annales Geophysicae, Vol 36, Pp 287-299 (2018)
The ongoing Swarm satellite mission provides an opportunity for better knowledge of the near-Earth electromagnetic environment. Herein, we use a new methodological approach for the detection and classification of ultra low-frequency (ULF) wave eve
Externí odkaz:
https://doaj.org/article/c3e873da6ded4ad5899491e92669890f
Autor:
S. M. Potirakis, Y. Contoyiannis, N. S. Melis, J. Kopanas, G. Antonopoulos, G. Balasis, C. Kontoes, C. Nomicos, K. Eftaxias
Publikováno v:
Nonlinear Processes in Geophysics, Vol 23, Iss 4, Pp 223-240 (2016)
The preparation process of two recent earthquakes (EQs) that occurred in Cephalonia (Kefalonia), Greece, ((38.22° N, 20.53° E), 26 January 2014, Mw = 6.0, depth ∼ 20 km) and ((38.25° N, 20.39° E), 3 February 2014, Mw = 5.9, depth ∼ 10 km), re
Externí odkaz:
https://doaj.org/article/332426c44ee04e5ebcc048dcf444519b
Publikováno v:
Annales Geophysicae, Vol 33, Pp 1431-1442 (2015)
Geospace magnetic storms, driven by the solar wind, are associated with increases or decreases in the fluxes of relativistic electrons in the outer radiation belt. We examine the response of relativistic electrons to four intense magnetic storms,
Externí odkaz:
https://doaj.org/article/a054781995c745d9a1a9db636f8f489a
Autor:
G. Balasis, I. A. Daglis, I. R. Mann, C. Papadimitriou, E. Zesta, M. Georgiou, R. Haagmans, K. Tsinganos
Publikováno v:
Annales Geophysicae, Vol 33, Pp 1237-1252 (2015)
We use multi-satellite and ground-based magnetic data to investigate the concurrent characteristics of Pc3 (22–100 mHz) and Pc4-5 (1–22 mHz) ultra-low-frequency (ULF) waves on the 31 October 2003 during the Halloween magnetic superstorm. ULF w
Externí odkaz:
https://doaj.org/article/7bdb17fe544949fd800462d196f73de2
Correlation-based characterisation of time-varying dynamical complexity in the Earth's magnetosphere
Autor:
R. V. Donner, G. Balasis
Publikováno v:
Nonlinear Processes in Geophysics, Vol 20, Iss 6, Pp 965-975 (2013)
The dynamical behaviour of the magnetosphere is known to be a sensitive indicator for the response of the system to solar wind coupling. Since the solar activity commonly displays very interesting non-stationary and multi-scale dynamics, the magnetos
Externí odkaz:
https://doaj.org/article/c024055c051c4d89b9efe4be7ef27ceb
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1751-1768 (2012)
We examine data from a topside ionosphere and two magnetospheric missions (CHAMP, Cluster and Geotail) for signatures of ultra low frequency (ULF) waves during the exceptional 2003 Halloween geospace magnetic storm, when Dst reached ~−380 nT. We
Externí odkaz:
https://doaj.org/article/19912740cb924d23ade9bbae15c698e1
Publikováno v:
Nonlinear Processes in Geophysics, Vol 18, Iss 5, Pp 563-572 (2011)
The dynamics of complex systems are founded on universal principles that can be used to describe disparate problems ranging from particle physics to economies of societies. A corollary is that transferring ideas and results from investigators in hith
Externí odkaz:
https://doaj.org/article/2c74e4a7da0c4b238baa9a0f6e456270
Autor:
K. Eftaxias, G. Balasis, Y. Contoyiannis, C. Papadimitriou, M. Kalimeri, L. Athanasopoulou, S. Nikolopoulos, J. Kopanas, G. Antonopoulos, C. Nomicos
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 10, Iss 2, Pp 275-294 (2010)
Ultra low frequency-ULF (1 Hz or lower), kHz and MHz electromagnetic (EM) anomalies were recorded prior to the L'Aquila catastrophic earthquake (EQ) that occurred on 6 April 2009. The detected anomalies followed this temporal scheme. (i) The MHz EM a
Externí odkaz:
https://doaj.org/article/67cc54946cfe4d44ada0c895f6224ef9
Autor:
K. Eftaxias, L. Athanasopoulou, G. Balasis, M. Kalimeri, S. Nikolopoulos, Y. Contoyiannis, J. Kopanas, G. Antonopoulos, C. Nomicos
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 9, Iss 6, Pp 1953-1971 (2009)
Ultra low frequency, kHz and MHz electromagnetic (EM) anomalies were recorded prior to the L'Aquila catastrophic earthquake that occurred on 6 April 2009. The main aims of this paper are threefold: (i) suggest a procedure for the designation of detec
Externí odkaz:
https://doaj.org/article/ef122577e9db41eaa52828c1d0d7301a