搜索结果: 31-45 共查到“知识库 火山学”相关记录233条 . 查询时间(2.814 秒)
Intrinsic Qp at Mt. Etna from the inversion of rise times of 2002 microearthquake sequence
intrinsic quality factor stress drop rise time corrected Akaike information criterion
<
2015/9/8
About three-hundred microearthquakes, preceeding and accompanying the 2002-2003 Mt. Etna flank eruption,
were considered in this study. On the high-quality velocity seismograms, measurements of the f...
The dark side of the Albano crater lake
Alban Hills volcano Albano Lake multibeam bathymetry
<
2015/9/8
The Albano Lake is the deepest volcanic lake among the volcanoes located in the Italian peninsula.
It belongs to the Colli Albani volcanic complex whose last largest eruptions are dated back to about...
Finite element modeling of ground deformation and gravity field at Mt. Etna
numerical modeling gravity anomaly
<
2015/9/1
An elastic 3-D axi-symmetric model based on Finite Element Method (FEM) is proposed to compute ground deformation
and gravity changes caused by overpressure sources in volcanic areas. The numerical c...
The new IMGC-02 transportable absolute gravimeter: measurement apparatus and applications in geophysics and volcanology
gravity absolute gravimeter measurements geophysics volcanology
<
2015/9/1
The research carried out at the Istituto Nazionale di Ricerca Metrologica (formerly Istituto di Metrologia «G.
Colonnetti») aiming to develop a transportable ballistic absolute gravimeter e...
Strategies in the processing and analysis of continuous gravity record in active volcanic areas: the case of Mt. Vesuvius
time gravity changes gravity record volcanic processes air pressure admittance
<
2015/9/1
This research is intended to describe new strategies in the processing and analysis of continuous gravity records
collected in active volcanic areas and to assess how permanent gravity stations can i...
About the shallow resistivity structure of Vesuvius volcano
Vesuvius volcanic area CSAMT survey resistivity tomography shallow 2D electrical structure
<
2015/9/1
Magnetotelluric (MT) soundings performed in the past in the volcanic area of Mt. Vesuvius by two independent
research groups showed in the same places MT apparent resistivity curves with very similar...
Surface deformation of active volcanic areas retrieved with the SBAS-DInSAR technique: an overview
Ground deformation Differential Interferometry
<
2015/9/1
This paper presents a comprehensive overview of the surface deformation retrieval capability of the Differential
Synthetic Aperture Radar Interferometry (DInSAR) algorithm, referred to as Small BAsel...
Advanced satellite technique for volcanic activity monitoring and early warning
Etna AVHRR SEVIRI ash cloud detection volcanic thermal anomalies Robust Satellite Techniques early warning
<
2015/9/1
Nowadays, satellite remote sensing is an important tool for volcanic activity monitoring, thanks to several operational
satellite platforms providing data everywhere with high observational frequenci...
Structural analysis of the eruptive fissures at Mount Etna (Italy)
Eruptive fracture dike Magmas Tectonics Structural geology
<
2015/8/27
Mount Etna produces frequent eruptions from its summit craters and from fissures on its flanks. The flank fissures trend approximately radially to the summit, and are mainly concentrated in three rift...
The flank eruption history of Etna (1610-2006) as a constraint on lava flow hazard
flow hazard Etna
<
2015/8/27
Data of the flank eruptions of Etna from over the last 400 years were extracted from the new geological map for the lava flow extensions and vent positions, and from the catalogs of historical eruptio...
Quantitative analysis of the 1981 and 2001 Etna flank eruptions: a contribution for future hazard evaluation and mitigation
flank eruptions future hazard evaluation and mitigation
<
2015/8/27
Lava flows produced during Etna flank eruptions represent severe hazards for the nearby inhabited areas, which can be protected by adopting prompt mitigation actions, such as the building of diversion...
High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy)
absolute and relative gravimeters uncertainty microgravimetry
<
2015/8/27
Accurate detection of time gravity changes attributable to the dynamics of volcanoes requires high-precision gravity measurements. With the aim of improving the quality of data from the Mount Etna gra...
Near real-time routine for volcano monitoring using infrared satellite data
Remote sensing volcano monitoring NOAAAVHRR hot-spot detection lava flow effusion rate
<
2015/8/27
An Advanced Very-High-Resolution Radiometer (AVHRR) routine for hot-spot detection and effusion rate estimation (AVHotRR) using AVHRR infrared space-borne images is presented here for the monitoring o...
RSTVOLC implementation on MODIS data for monitoring of thermal volcanic activity
Etna MODIS hot spots RSTVOLC
<
2015/8/27
An optimized configuration of the Robust Satellite Technique (RST) approach was developed within the framework of the ‘LAVA’ project. This project is funded by the Italian Department of Civil Protecti...
The HOTSAT volcano monitoring system based on combined use of SEVIRI and MODIS multispectral data
SEVIRI and MODIS multispectral data monitoring system
<
2015/8/27
Spaceborne remote sensing of high-temperature volcanic features offers an excellent opportunity to monitor the onset and development of new eruptive activity. To provide a basis for real-time response...