搜索结果: 1-15 共查到“空间物理学 turbulence”相关记录37条 . 查询时间(0.125 秒)
Magnetosphere-Ionosphere Coupling Through E-region Turbulence: Anomalous Conductivities and Frictional Heating
Anomalous Conductivities Frictional Heating
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2017/3/22
Global magnetospheric MHD codes using ionospheric conductances based on laminar
models systematically overestimate the cross-polar cap potential during storm time by
up to a factor of two. At these ...
Non-Gaussian statistics in space plasma turbulence:fractal properties and pitfalls
Non-Gaussian statistics space plasma turbulence fractal properties pitfalls
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2009/11/16
Statistical properties of collisionless plasmas in the vicinity of the Earth's bow shock are investigated with the aim to characterize the intermittent behaviour of non- magnetohydrodynamic turbulence...
Solar wind low-frequency magnetohydrodynamic turbulence:extended self-similarity and scaling laws
Solar wind low-frequency magnetohydrodynamic turbulence extended self-similarity scaling laws
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2009/11/16
In this paper we review some of the work done in investigating the scaling properties of Magnetohydrodynamic turbulence, by using velocity fluctuations measurements performed in the interplanetary spa...
On aspects of the measurement of non-linear turbulence processes using the cluster wave experiments
measurement of non-linear turbulence processes cluster wave experiments
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2009/11/16
The ESA/NASA Cluster mission has four identical satellites and is due for launch at the end of 1995. It will provide a unique opportunity to study medium scale processes in the region from inside the ...
A spectral model for turbulence and microphysics dynamics in an ice cloud
spectral model for turbulence microphysics dynamics ice cloud
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2009/11/13
A one-dimensional, nine-mode spectral model for temperature, velocity, and the mixing ratios of suspended and precipitating ice-particle components is shown to be consistent with ice-cloud observation...
Numerical simulation of ion dynamics in the magnetotail magnetic turbulence:On collisionless conductivity
Numerical simulation ion dynamics magnetotail magnetic turbulence collisionless conductivity
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2009/11/13
The ion dynamics in the distant Earth's magnetotail is studied in the case that a cross tail electric field and reconnection parity magnetic turbulence are present in the neutral sheet. A test particl...
Turbulence:mechanics and structure of anomalous scaling
Turbulence mechanics structure anomalous scaling
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2009/11/12
As the finite correlation time of a force driving turbulence is taken into account, a new, dimensionless parameter occurs in the theory of turbulence. This new parameter is responsible for two differe...
Oscillating grids turbulence generator for turbulent transport studies
grids turbulence generator turbulent transport studies
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2009/11/12
An oscillating grids turbulence generator was constructed for studies of two new effects associated with turbulent transport of particles, turbulent thermal diffusion and clustering instability. These...
Model for vortex turbulence with discontinuities in the solar wind
vortex turbulence discontinuities in the solar wind
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2009/11/12
A model of vortex with embedded discontinuities in plasma flow is developed in the framework of ideal MHD in a low b plasma. Vortex structures are considered as a result of 2-D evolution of nonlinear ...
Geometric aspects of HF driven Langmuir turbulence in the ionosphere
Geometric aspects HF Langmuir turbulence ionosphere
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2009/11/11
The geometric aspects of HF-generated Langmuir turbulence in the ionosphere and its detection by radars are theoretically discussed in a broad approach, including local modelling (damped and driven Za...
The small amplitude of density turbulence in the inner solar wind
small amplitude density turbulence inner solar wind
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2009/11/11
Very Long Baseline Interferometer (VLBI) observations were made of radio sources close to the Sun, whose lines of sight pass through the inner solar wind (impact parameters 16-26 RE). Power spectra we...
MHD turbulence and heating of the open field-line solar corona
MHD turbulence open field-line solar corona
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2009/11/11
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static mag...
Magnetic field turbulence,electron heating,magnetic holes,proton cyclotron waves,and the onsets of bipolar pulse (electron hole) events:a possible unifying scenario
Magnetic field turbulence electron heating magnetic holes proton cyclotron waves
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2009/11/11
Two electron heating events have been identified on 20 May 1996 when Polar was in the polar cap/polar cusp boundary layer. The electron heating events were located within magnetic holes/cavities/bubbl...
The strange physics of low frequency mirror mode turbulence in the high temperature plasma of the magnetosheath
strange physics low frequency mirror mode turbulence high temperature plasma
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2009/11/11
Mirror mode turbulence is the lowest frequency perpendicular magnetic excitation in magnetized plasma proposed already about half a century ago by Rudakov and Sagdeev (1958) and Chandrasekhar et al. (...
Excitation of kinetic Alfvén turbulence by MHD waves and energization of space plasmas
kinetic Alfvén turbulence MHD waves energization of space plasmas
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2009/11/11
There is abundant observational evidence that the energization of plasma particles in space is correlated with an enhanced activity of large-scale MHD waves. Since these waves cannot interact with par...