Zobrazeno 1 - 10
of 175
pro vyhledávání: '"U. Villante"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Several critical aspects may influence the analysis of the relationship between the solar wind (SW) and magnetospheric fluctuations, for example, the characteristics and frequency of SW fluctuations that are expected to impinge the magnetosphere may
Externí odkaz:
https://doaj.org/article/c846a9460e574c91b2702b8aaa49bcf4
Publikováno v:
Annales Geophysicae, Vol 32, Pp 1153-1161 (2014)
An analysis of measurements performed at L'Aquila (Italy) during a deep minimum of solar and magnetospheric activity (2008–2010) allowed for the evaluation of possible contamination of the ultralow-frequency (ULF) spectrum (f ≈ 1–500 mH
Externí odkaz:
https://doaj.org/article/04739b26632e44e7875d3e9664215e94
Autor:
G. Prattes, K. Schwingenschuh, H. U. Eichelberger, W. Magnes, M. Boudjada, M. Stachel, M. Vellante, U. Villante, V. Wesztergom, P. Nenovski
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 7, Pp 1959-1968 (2011)
This work presents ground based Ultra Low Frequency (ULF) magnetic field measurements in the frequency range from 10–15 mHz from 1 January 2008 to 14 April 2009. In this time period a strong earthquake series hit the Italian Abruzzo region around L
Externí odkaz:
https://doaj.org/article/94ab585657fe4ef0be0f93b294fb2175
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 4, Pp 1047-1055 (2011)
On 6 April 2009 at 01:32:39 UT a strong earthquake occurred west of L'Aquila at the very shallow depth of 9 km. The main shock local magnitude was Ml = 5.8 (Mw = 6.3). Several powerful aftershocks occurred the following days. The epicentre of the mai
Externí odkaz:
https://doaj.org/article/22cb7f9678704fadb7a73dfc465876d8
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 10, Iss 6, Pp 1197-1208 (2010)
Ionograms from Rome (41.8N, 12.5E) and Sofia (42.4N, 23.2E) ionospheric stations during earthquake (EQ) activity with magnitude (M) between 5 and 6 in Central Italy are analyzed. It is found that several ionospheric disturbances occur in the intermed
Externí odkaz:
https://doaj.org/article/feb264ae74214fc6890c716b99c51e59
Autor:
U. Villante, M. De Lauretis, C. De Paulis, P. Francia, A. Piancatelli, E. Pietropaolo, M. Vellante, A. Meloni, P. Palangio, K. Schwingenschuh, G. Prattes, W. Magnes, P. Nenovski
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 10, Iss 2, Pp 203-214 (2010)
Several investigations reported the possible identification of anomalous geomagnetic field signals prior to earthquake occurrence. In the ULF frequency range, candidates for precursory signatures have been proposed in the increase in the noise backgr
Externí odkaz:
https://doaj.org/article/09ffa2f344f8415b91b7342d529bf377
Publikováno v:
Annales Geophysicae, Vol 27, Pp 3621-3629 (2009)
We present a study aimed to characterize the ULF (1–100 mHz) geomagnetic pulsation activity in the polar cap at different latitudes. We used magnetic measurements obtained through 2005–2007 in Antarctica, at Dome C (89° S corrected geomagneti
Externí odkaz:
https://doaj.org/article/a48d5f5063f644feb78caa17c248e90b
Autor:
U. Villante, M. Vellante, P. Francia, M. De Lauretis, A. Meloni, P. Palangio, B. Zolesi, M. Pezzopane, M. Förster, T. L. Zhang, W. Magnes, P. Nenovski, I. Cholakov, V. Wesztergom
Publikováno v:
Annales Geophysicae, Vol 24, Pp 1455-1468 (2006)
We present an analysis of ULF geomagnetic field fluctuations at low latitudes during the first CAWSES campaign (29 March-3 April 2004). During the whole campaign, mainly in the prenoon sector, a moderate Pc3-4 pulsation activity is observed, clear
Externí odkaz:
https://doaj.org/article/fea14be2328346bca2403f30b3e445c3
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3699-3705 (2004)
We conducted a statistical analysis of the geomagnetic field variations during the storm main phase at two low-latitude stations, separated by several hours in magnetic local time, in order to investigate the asymmetry and longitudinal extent of t
Externí odkaz:
https://doaj.org/article/b42aca08ba724501b5d2d1402c2c3f72
Autor:
U. Villante, P. Di Giuseppe
Publikováno v:
Annales Geophysicae, Vol 22, Pp 2053-2066 (2004)
We examined geomagnetic field observations at low and middle latitudes in the Northern Hemisphere during a 50-min interval (12 May 1999), characterized by a complex behaviour of the solar wind dynamic pressure. For the entire interval, the aspects
Externí odkaz:
https://doaj.org/article/d6675443af0f46618b5ca9a0070b60af