搜索结果: 1-15 共查到“固体地球物理学 nonlinear”相关记录35条 . 查询时间(0.4 秒)
Potential reasons for ionospheric anomalies detected by nonlinear principal component analysis just before the China Wenchuan earthquake, and their relationship to source conditions
Nonlinear Principal Component Analysis (NLPCA) Principal Component Analysis (PCA) Total Electron Content (TEC),
2015/8/27
Nonlinear principal component analysis (NLPCA) was performed to examine the total electron content (TEC) anomalies for the China Wenchuan earthquake of May 12, 2008 (= 7.9). This was applied to global...
Global nonlinear optimization for the estimation of static shift and interpretation of 1-D magnetotelluric sounding data
Magnetotelluric sounding global nonlinear optimization static shift TE and TM mode apparent resistivity phase
2015/8/27
In the presence of conducting inhomogeneities in near-surface structures, apparent resistivity data in magnetotelluric sounding can be severely distorted. This is due to electric fields generated from...
Prediction and evaluation of nonlinear site response with potentially liquefiable layers in the area of Nafplion (Peloponnesus, Greece) for a repeat of historical earthquakes
Prediction and evaluation nonlinear site response potentially liquefiable layers Nafplion repeat of historical earthquakes
2011/1/19
We examine the possible non-linear behaviour of potentially liquefiable layers at selected sites located within the expansion area of the town of Nafplion, East Peloponnese, Greece. Input motion is co...
Nonlinear interaction between long inertio-gravity and rossby waves
Nonlinear interaction long inertio-gravity rossby waves
2009/11/16
The equations describing the interaction of long inertio-gravity (IG) waves with the Rossby waves are derived. Due to remarkable cancellations, the interaction is shown to be anomalously weak. As a re...
Nonlinear time series analysis of geomagnetic pulsations
Nonlinear time series analysis geomagnetic pulsations
2009/11/16
A detailed nonlinear time series analysis has been made of two daytime geomagnetic pulsation events being recorded at L'Aquila (Italy, L ≈ 1.6) and Niemegk (Germany, L ≈ 2.3). Grassberger and Procacci...
3D nonlinear inversion by entropy of image contrast optimization
3D nonlinear inversion image contrast optimization
2009/11/16
An approach to solve 3D inverse problem associated with inverting seismic reflection data is presented. It exploits the a priori assumption that the reflection data, reduced properly, can be interpret...
Nonlinear interaction between acoustic gravity waves in a rotating atmosphere
Nonlinear interaction acoustic gravity waves rotating atmosphere
2009/11/16
The influence of the Earth's rotation on the resonant interaction of atmospheric waves is investigated. The explicit expressions for the coupling coefficients are presented. They are derived by means ...
Nonlinear quenching of current fluctuations in a self-exciting homopolar dynamo
Nonlinear quenching current fluctuations self-exciting homopolar dynamo
2009/11/13
In the interpretation of geomagnetic polarity reversals with their highly variable frequency over geological time it is necessary, as with other irregularly fluctuating geophysical phenomena, to consi...
The rupture on a fault resulting in an earthquake is clearly a complex process. In order to better understand this process the continuum version of the slider-block model has been considered in some d...
The nonlinear evolution of unstable coupled equatorial ocean-atmosphere modes
nonlinear evolution equatorial ocean-atmosphere modes
2009/11/13
In this paper we investigate whether observed intraseasonal variability in the equatorial Pacific can be attributed to finite amplitude waves resulting from unstable air-sea interactions. Within a Zeb...
Nonlinear analysis of magnitude and interevent time interval sequences for earthquakes of the Caucasian region
Nonlinear analysis interevent time interval sequences earthquakes of the Caucasian region
2009/11/12
It is well known that lithospheric seismic processes are characterized by self-similarity or scale invariance in terms of earthquake-size, time, space and space-time distributions, although precise de...
Nonlinear viscoelastic compaction in sedimentary basins
Nonlinear viscoelastic compaction sedimentary basins
2009/11/12
In the mathematical modelling of sediment compaction and porous media flow, the rheological behaviour of sediments is typically modelled in terms of a nonlinear relationship between effective pressure...
Analytical and numerical investigation of nonlinear internal gravity waves
Analytical and numerical investigation nonlinear internal gravity waves
2009/11/12
The propagation of long, weakly nonlinear internal waves in a stratified gas is studied. Hydrodynamic equations for an ideal fluid with the perfect gas law describe the atmospheric gas behaviour. If w...
Baroclinic instability of a symmetric,rotating,stratified flow:a study of the nonlinear stabilisation mechanisms in the presence of viscosity
Baroclinic instability nonlinear stabilisation mechanisms presence of viscosity
2009/11/12
This paper presents the analysis of symmetric circulations of a rotating baroclinic flow, forced by a steady thermal wind and dissipated by Laplacian friction. The analysis is performed with numerical...
A catalogue of nonlinear vortex structures associated with acoustic-gravity perturbations in the Earth's atmosphere is presented. Besides the previously known Kelvin-Stewart cat's eyes, dipolar and tr...