搜索结果: 1-15 共查到“地球物理学 dynamic”相关记录20条 . 查询时间(0.16 秒)
Properties of the main trough of the F region derived from Dynamic Explorer 2 data
ionosphere on in-situ electron density
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2015/9/25
In winter and equinoctial season nights, the main trough of the F region is an important stable structure of the ionosphere at the border between mid and high latitudes. Therefore it has to be taken i...
Dynamic Spatial Panel Models: Networks, Common Shocks, and Sequential Exogeneity
Spatial Panel Models Networks
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2015/9/24
This paper considers a class of GMM estimators for general dynamic panel models,
allowing for cross sectional dependence due to spatial lags and due to unspecified common shocks. We signiᤙ...
A dynamic system to forecast ionospheric storm disturbances based on solar wind conditions
inospheric forecasting ionospheric modelling ionospheric storms
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2015/9/10
For the reliable performance of technologically advanced radio communications systems under geomagnetically
disturbed conditions, the forecast and modelling of the ionospheric response during storms ...
Modeling the dynamic rupture propagation on heterogeneous faults with rate- and state-dependent friction
dynamic rupture fault constitutive law fault friction stress heterogeneities
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2015/9/10
We investigate the effects of non-uniform distribution of constitutive parameters on the dynamic propagation of
an earthquake rupture. We use a 2D finite difference numerical method and we assume tha...
3D dynamic simulations of spontaneous rupture propagation governed by different constitutive laws with rake rotation allowed
earthquake dynamics numerical modeling friction laws slip time history rake rotation
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2015/9/10
In this work we present a 3D Finite Difference numerical method to model the dynamic spontaneous propagation
of an earthquake rupture on planar faults in an elastic half-space. We implement the Tract...
Non-parametric analysis of a single seismometric recording to obtain building dynamic parameters
damping fundamental mode singledegree-of-freedom ambient vibration
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2015/9/2
We propose a simple time-domain, non-parametric method to estimate the damping at the fundamental frequency of a building. The method aims at obtaining quick-and-dirty data on large sets of buildings,...
High-rate (1 Hz to 20 Hz) GPS coseismic dynamic displacements carried out during the Emilia 2012 seismic sequence
HRGPS GPS data processing Strong motion
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2015/8/26
In May-July 2012, Emilia Romagna (northern Italy) was struck by a significant seismic sequence, which was characterized by two moderate-magnitude earthquakes: a Ml 5.9 event on May 20, 2012, at 02:03:...
Verification of an ADER-DG method for complex dynamic rupture problems
complex dynamic rupture problems ADER-DG method
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2014/12/18
We present results of thorough benchmarking of
an arbitrary high-order derivative discontinuous Galerkin
(ADER-DG) method on unstructured meshes for advanced
earthquake dynamic rupture problems.
GRID-BASED REPRESENTATION AND DYNAMIC VISUALIZATION OF IONOSPHERIC TOMOGRAPHY
Ionospheric tomography, Spatial grids, Dynamic visualization, Global navigation satellite system
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2014/4/21
The ionosphere is a dynamic system with complex structures. With the development of abundant global navigation satellite systems,
the ionospheric electron density in different altitudes and its time...
Pulse-like and crack-like dynamic shear ruptures on frictional interfaces: experimental evidence, numerical modeling, and implications
Earthquake physics Mechanics of faulting Pulse-like rupture Shear cracks Velocity-dependent friction Linear slip-weakening friction
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2014/4/8
Destructive large earthquakes occur as dynamic frictional ruptures along pre-existing interfaces (or faults) in the Earth’s crust. One of the important issues in earthquake dynamics is the local durat...
Supershear transition due to a free surface in 3-D simulations of spontaneous dynamic rupture on vertical strike-slip faults
Supershear transition Earthquake rupture dynamics Earthquake source physics
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2014/4/8
Supershear rupture propagation has been inferred from seismic observations for natural faults and observed in laboratory experiments. We study the effect of the free surface on the transition of earth...
Evaluation on the analogy between the dynamic magnetosphere and a forced and/or self-organized critical system
Evaluation on the analogy dynamic magnetosphere self-organized critical system
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2009/11/12
The dissipation power and size of auroral blobs are investigated in detail to examine the possible analogy between the dynamic magnetosphere and a forced and/or self-organized critical system. The dis...
Earthquake statistics in a Block Slider Model and a fully dynamic Fault Model
Earthquake statistics Block Slider Model fully dynamic Fault Model
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2009/11/11
We examine the event statistics obtained from two differing simplified models for earthquake faults. The first model is a reproduction of the Block-Slider model of Carlson et al. (1991), a model often...
Monitoring the dynamic behaviors of the Bosporus Bridge by GPS during Eurasia Marathon
dynamic behaviors Bosporus Bridge GPS Eurasia Marathon
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2009/11/3
Engineering structures, like bridges, dams and towers are designed by considering temperature changes, earthquakes, wind, traffic and pedestrian loads. However, generally, it can not be estimated that...
Continuous dynamic assimilation of the inner region data in hydrodynamics modelling:optimization approach
Continuous dynamic assimilation inner region data hydrodynamics modelling optimization approach
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2009/11/2
In meteorological and oceanological studies the classical approach for finding the numerical solution of the regional model consists in formulating and solving a Cauchy-Dirichlet problem. The boundary...