搜索结果: 1-10 共查到“地球物理学 Chaos”相关记录10条 . 查询时间(0.087 秒)
Repeat-station surveys: implications from chaos and ergodicity of the recent geomagnetic field
Magnetic repeat stations Chaos Ergodicity
2015/8/18
The present geomagnetic field is chaotic and ergodic: chaotic because it can no longer be predicted beyond around 6 years; and ergodic in the sense that time averages correspond to phase-space average...
The Eons of Chaos and Hades
Eons Chaos Hades
2014/12/31
We propose the Chaotian Eon to demarcate geologic time from the origin of the Solar System to the Moon-forming impact on Earth. This separates the solar system wide processes of planet formation from ...
On the possibility of wave-induced chaos in a sheared,stably stratified fluid layer
wave-induced chaos sheared,stably stratified fluid layer
2009/11/16
Shear flow in a stable stratification provides a waveguide for internal gravity waves. In the inviscid approximation, internal gravity waves are known to be unstable below a threshold in Richardson nu...
Our intention in this work is to show, by using two different methods, that magnetospheric dynamics reveal low dimensional chaos. In the first method we extend the chaotic analysis for the AE index ti...
Low-order models of wave interactions in the transition to baroclinic chaos
Low-order models wave interactions baroclinic chaos
2009/11/16
A hierarchy of low-order models, based on the quasi-geostrophic two-layer model, is used to investigate complex multi-mode flows. The different models were used to study distinct types of nonlinear in...
Chaos in Magnetoplasmas
Chaos Magnetoplasmas
2009/11/13
A nonlinear wave, in general, is equivalent to a nonlinear dynamical system, which exhibits the phenomena of chaos. By means of techniques of nonlinear dynamical systems, we have investigated the cond...
Comments and new results about the magnetospheric chaos hypothesis
Comments new results magnetospheric chaos hypothesis
2009/11/13
In this study we present theoretical concepts and results concerning the hypothesis test of the magnetospheric chaos. For this reason we compare the observational behavior of the magnetospheric system...
A three-wave model of auroral radio emissions near the electron plasma frequency was proposed by Chian et al. (1994) involving resonant interactions of Langmuir, whistler and Alfvén waves. Chaos can o...
Intermittent chaos driven by nonlinear Alfvén waves
Intermittent chaos nonlinear Alfvén waves
2009/11/11
We investigate the relevance of chaotic saddles and unstable periodic orbits at the onset of intermittent chaos in the phase dynamics of nonlinear Alfvén waves by using the Kuramoto-Sivashinsky (KS) e...
Synchronization and chaos control in a periodically forced quasi-geostrophic two-layer model of baroclinic instability
Synchronization chaos control quasi-geostrophic two-layer model baroclinic instability
2009/11/9
Cyclic forcing on many timescales is believed to have a significant effect on various quasi-periodic, geophysical phenomena such as El Niño, the Quasi-Biennial Oscillation, and glacial cycles. ...