搜索结果: 1-15 共查到“地球科学总论 VLF”相关记录17条 . 查询时间(0.089 秒)
Anomalies Observed in VLF and LF Radio Signals on the Occasion of the Western Turkey Earthquake (Mw = 5.7) on May 19, 2011
Earthquake Precursors European Radio Network Radio Signal Analysis
2013/3/11
Since 2009 a network of VLF (20 - 60 kHz) and LF (150 - 300 kHz) radio receivers is operating in Europe in order to study the disturbances produced by the earthquakes on the propagation of these signa...
VLF-LF radio signals collected at Bari (South Italy): a preliminary analysis on signal anomalies associated with earthquakes
VLF-LF radio signals a preliminary analysis signal anomalies earthquakes
2009/12/14
At the beginning of 2002 an OmniPAL receiver was put into operation at the Department of Physics of Bari University (Southern Italy). The electric field strength of five VLF-LF signals transmitted fro...
Experience of short term earthquake precursors with VLF–VHF electromagnetic emissions
short term earthquake precursors VLF–VHF electromagnetic emissions
2009/12/11
Electromagnetic anomalies (EMA) covering a wide range of frequencies from ULF, VLF up to VHF have been observed before recent destructive earthquakes in continental Greece. We show that the features o...
Anomalies in VLF radio signals prior the Abruzzo earthquake (M=6.3) on 6 April 2009
Anomalies VLF radio signals Abruzzo earthquake (M=6.3)
2009/12/8
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 (Aust...
Ionosperic anomaly due to seismic activities–Part 1:Calibration of the VLF signal of VTX 18.2 KHz station from Kolkata and deviation during seismic events
seismic activities Calibration VLF signal VTX 18.2 KHz station Kolkata seismic events
2009/12/8
VLF signals are long thought to give away important information about the lithosphere-ionosphere coupling. In order to establish co-relations, if any, between the ionospheric activities and the earthq...
Further study on the role of atmospheric gravity waves on the seismo-ionospheric perturbations as detected by subionospheric VLF/LF propagation
Further study atmospheric gravity waves seismo-ionospheric perturbations VLF/LF propagation
2009/12/8
As the target earthquake we have taken a huge earthquake (EQ) named Miyagi-oki earthquake on 16 August 2005 (with magnitude of 7.2) and we have analyzed the 4 month period including the date of this E...
Similar behaviors of natural ELF/VLF ionospheric emissions and transmitter signals over seismic Adriatic regions
Similar behaviors natural ELF/VLF ionospheric emissions transmitter signals seismic Adriatic regions
2010/1/4
We report on the analysis of ELF/VLF emissions observed by the Instrument Champ Electrique (ICE) experiment onboard the DEMETER micro-satellite. We consider principally selected seismic events reporte...
Statistical correlation of spectral broadening in VLF transmitter signal and low-frequency ionospheric turbulence from observation on DEMETER satellite
Statistical correlation spectral broadening VLF transmitter signal DEMETER satellite
2009/12/31
In our earlier papers we have found the effect of VLF transmitter signal depression over epicenters of the large earthquakes from observation on the French DEMETER satellite that can be considered as ...
Disturbances in a VLF radio signal prior the M=4.7 offshore Anzio (central Italy) earthquake on 22 August 2005
a VLF radio signal the M=4.7 offshore Anzio (central Italy) earthquake 22 August 2005
2009/12/30
On 22 August 2005 an earthquake with magnitude M=4.7 occurred in the Anzio (central Italy) offshore area. From 2002, a VLF-LF radio receiver is into operation in Bari (southern Italy). The intensity a...
Disturbances in a VLF radio signal prior the M=4.7 offshore Anzio (central Italy) earthquake on 22 August 2005
Disturbances VLF radio signal M=4.7 offshore Anzio earthquake
2010/1/4
On 22 August 2005 an earthquake with magnitude M=4.7 occurred in the Anzio (central Italy) offshore area. From 2002, a VLF-LF radio receiver is into operation in Bari (southern Italy). The intensity a...
On the statistical correlation between the ionospheric perturbations as detected by subionospheric VLF/LF propagation anomalies and earthquakes
the statistical correlation the ionospheric perturbations subionospheric VLF/LF propagation anomalies and earthquakes
2009/12/30
Relatively long-period (4 years) data on different propagation paths by means of Japanese-Pacific VLF/LF network observation, are used to obtain further statistical significance on the correlation of ...
On the ionospheric perturbation associated with the 2007 Niigata Chuetsu-oki earthquake, as seen from subionospheric VLF/LF network observations
the ionospheric perturbation the 2007 Niigata Chuetsu-oki earthquake subionospheric VLF/LF network observations
2009/12/30
In order to investigate any precursory effect of ionospheric perturbations associated with the large 2007 Niigata Chuetsu-oki earthquake (16 July 2007) (magnitude, 6.8), we have made full use of our V...
On the generation mechanism of terminator times in subionospheric VLF/LF propagation and its possible application to seismogenic effects
the generation mechanism terminator times subionospheric VLF/LF propagation seismogenic effects
2009/12/29
The signals from VLF/LF transmitters are known to propagate in the Earth-ionosphere waveguide, so that the subionospheric propagation characteristics are very sensitive to the condition of the lower i...
Electromagnetic field measurements in ULF-ELF-VLF [0.001 Hz–100 KHz] bands
Electromagnetic field measurements ULF-ELF-VLF 0.001 Hz–100 KHz bands
2010/1/27
We are reporting the technological and scientific objectives of the MEM project. The MEM project has been activated in the INGV Observatory of L'Aquila to create in Central Italy a network of observat...
Possible seismo-ionosphere perturbations revealed by VLF signals collected on ground and on a satellite
Possible seismo-ionosphere perturbations VLF signals satellite
2009/12/30
The results of the monitoring of three VLF/LF signals collected in Petropavlovsk station (Kamchatka, Russia) and one VLF signal collected on board of the DEMETER French satellite are presented. Two pe...