搜索结果: 1-15 共查到“地球物理学 Fields”相关记录25条 . 查询时间(0.11 秒)
Scientists deepen understanding of magnetic fields that surround Earth（图）
Scientists magnetic fields surround Earth
2019/10/23
Vast rings of electrically charged particles encircle the Earth and other planets. Now, a team of scientists has conducted research into waves that travel through this magnetic, electrically charged e...
A meteoroid penetrating the Earth’s atmosphere leaves behind a trail
of dense plasma embedded in the lower E/upper D-region ionosphere. While
radar measurements of meteor trail evolution have been c...
3D characteristics of ADCP echo intensity anomaly observed over the Snail, Archean, and Pika hydrothermal vent fields in the South Mariana Trough
South Mariana Trough hydrothermal plume AUV 3D mapping ADCP echo intensity
2017/4/10
We conducted four dives using the Urashima autonomous underwater vehicle (AUV) over three hydrothermal vent
fields (Snail, Archean, and Pika) within the South Mariana Trough in July 2009, and measure...
Seismic response to stress-strain fields in the lithosphere of Sicily
stress strain lithosphere Sicily
2015/9/30
Earthquake locations and fault-plane solutions are investigated in Sicily and the surrounding areas, by using local network data for the period 1988-1995, and a recently proposed 3D model of the local...
Improved techniques in data analysis and interpretation of potential fields:examples of application in volcanic and seismically active areas
gravimetry potential fields geomagnetism signal enhancement techniques
2015/9/25
Geopotential data may be interpreted by many different techniques, depending on the nature of the mathematical equations correlating specific unknown ground parameters to the measured data set. The in...
The new integrated aeromagnetic map of the Phlegrean Fields volcano and surrounding areas
aeromagnetic survey Phlegrean Fields wavelet analysis
2015/9/15
In this paper we present and analyze the new detailed aeromagnetic data set resulting from a recent survey carried out in the Phlegrean Fields volcanic area. The survey was aimed at gaining new insigh...
Anomaly crust fields from MAGSAT satellite measurements:their processing and interpretation
MAGSAT satellite data magnetic andgravity anomalies wavelet and maximum entropyanalysis earthquake hypocenters
2015/9/14
The space distribution of the magnetic anomaly field for the Pacific Ocean is obtained from data of the satellite MAGSAT. A number of long-wavelength magnetic anomalies of the region are identified. A...
A study of tilt change recorded from July to October 2006 at the Phlegraean Fields (Naples, Italy)
monitoring tilt network ground deformation spectral analysis decorrelation methodology
2015/9/2
The tiltmetric dataset of Phlegraean Fields area showed a discrete correlation with the volcanic dynamics, suggesting
that tiltmetric monitoring is important for the surveillance of active volcanic a...
A new station for monitoring electromagnetic fields in Duronia (Italy):experimental setup and first results
geomagnetic field MEM project Schumann resonance Ionospheric Alfven Resonator
2015/8/28
Since the end of 2007 a new electromagnetic field monitoring station has been in operation in Central Italy in the area of a village called Duronia. The station was created in the framework of the MEM...
Italian Magnetic Network and magnetic reference fields at 2010.0
Earth's magnetic field Geomagnetic map Magnetic surveys Magnetic repeat stations Secular variation
2015/8/26
The Istituto Nazionale di Geofisica e Vulcanologia (INGV) has systematically undertaken the task of making measurements of the Earth's magnetic field in Italy. By tradition and because of the elongate...
Combination of coseismic displacement fields: a geodetic perspective
Crustal deformation Data processing GPS coseismic displacement, combination
2015/8/26
This study provides the mathematical framework for the rigorous combination of coseismic offsets observed by a global positioning system (GPS) network and investigates the results obtained on the occa...
Anomaly disturbances of the magnetic fields before the strong earthquake in Japan on March 11, 2011
Magnetic field ULF magnetic field 2011 Japan earthquake
2015/8/24
One of the strongest earthquakes, with magnitude M 8.9, occurred at the sea bottom near to the east coast of Japan on March 11, 2011. This study is devoted to the investigation of anomaly disturbances...
MULTITEMPORAL CROP TYPE CLASSIFICATION USING CONDITIONAL RANDOM FIELDS AND RAPIDEYE DATA
Crop Agriculture Classification Multitemporal Satellite
2014/6/5
The task of crop type classification with multitemporal imagery is nowadays often done applying classifiers that are originally
developed for single images like support vector machines (SVM). These...
Application of polarization ellipse technique for analysis of ULF magnetic fields from two distant stations in Koyna-Warna seismoactive region, West India
Application polarization ellipse technique analysis ULF
2010/10/21
A new approach is developed to find the source azimuth of the ultra low frequency (ULF) electromagnetic (EM) signals believed to be emanating from well defined seismic zone. The method is test applied...
Methods to describe barotropic vortices by global fields and vortex characteristics
barotropic vortices global fields vortex characteristics
2009/11/12
Results from an experimental study of vortices in a rotating shear layer are presented. The data are in the form of maps of the instantaneous horizontal velocity field obtained by a particle tracking ...