搜索结果: 1-15 共查到“空间物理学 F-region”相关记录17条 . 查询时间(0.125 秒)
Ion thermal effects on E-region instabilities: 2D kinetic simulations
E-region electrojet Ionospheric irregularities Plasma instabilities
2017/3/22
Radars frequently receive strong returns from naturally occurring plasma density irregularities centered around
100 km altitude in the atmosphere. These E-region ionospheric irregularities occur when...
Properties of the main trough of the F region derived from Dynamic Explorer 2 data
ionosphere on in-situ electron density
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...
Planetary and gravity wave signatures in the F-region ionosphere with impacton radio propagation predictionsand variability
Radio propagation ionization
2015/9/14
The aim of this work within the WP 3.1 of the COST 271 Action is the characterization of the variability introduced in the F-region ionosphere by -Planetary Wave Signatures- (PWS) and -Gravity Wave
S...
Morphology of F-region vertical E×B drifts in the African sector using ionosonde measurements
equatorial F-region ionospheric variability ionospheric modelling ionosonde observations ionospheric dynamics
2015/9/2
F-region vertical velocities are derived from the ground-based ionosonde data for Ibadan (7.4°N, 3.9°E; dip 6°S:
an equatorial station in the African zone), to study the general characteristics of el...
Investigations on diurnal and seasonal variations of Schumann resonance intensities in the auroral region
resonances ELF observations ionospheres
2015/9/2
Measurements of the magnetic component of the Schumann resonance in the frequency range 6-14 Hz were performed
at high latitude location (TNB Antarctica; geographic coordinates: 74.7°S, 164.1°E; geom...
Magnetosphere-Ionosphere Coupling Through E-region Turbulence: Anomalous Conductivities and Frictional Heating
Anomalous Conductivities Frictional Heating
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 ...
Two-dimensional MHD model of the reconnection diffusion region
Two-dimensional MHD model reconnection diffusion region
2009/11/12
Magnetic reconnection is an important process providing a fast conversion of magnetic energy into thermal and kinetic plasma energy. In this concern, a key problem is that of the resistive diffusion r...
Double layers in the downward current region of the aurora
Double layers downward current region aurora
2009/11/11
Direct observations of magnetic-field-aligned (parallel) electric fields in the downward current region of the aurora provide decisive evidence of naturally occurring double layers. We report measurem...
Characteristics of quasi-static potential structures observed in the auroral return current region by Cluster
quasi-static potential structures auroral return current region Cluster
2009/11/11
Temporal and spatial characteristics of intense quasi-static electric fields and associated electric potential structures in the return current region are discussed using Cluster observations at geoce...
The nonlinear coupling of electromagnetic ion cyclotron and lower hybrid waves in the ring current region:the magnetic storm 1-7May 1998
nonlinear coupling electromagnetic ion cyclotron lower hybrid waves ring current region
2009/11/11
The excitation of lower hybrid waves (LHWs) is a widely discussed mechanism of interaction between plasma species in space, and is one of the unresolved questions of magnetospheric multi-ion plasmas. ...
Crossing a narrow-in-altitude turbulent auroral acceleration region
narrow-in-altitude turbulent auroral acceleration region
2009/11/11
We report on the in situ identification of a narrow electrostatic acceleration layer (electrostatic shock) containing intense plasma turbulence in the upward current region, and its effect on auroral ...
Continuous dynamic assimilation of the inner region data in hydrodynamics modelling:optimization approach
Continuous dynamic assimilation inner region data hydrodynamics modelling optimization approach
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...
Generation of Ionospheric Z-Echoes Via Mode Coupling in the E-Region
Generation Ionospheric Z-Echoes Via Mode Coupling E-Region
2009/6/15
Generation of Ionospheric Z-Echoes Via Mode Coupling in the E-Region
Source Region of the Energetic Electron Precipitation Between L-Values 3 and 6
geophysics ionosphere magnetosphere absorption
2009/6/12
Source Region of the Energetic Electron Precipitation Between L-Values 3 and 6.
ENSO Cycle Associated with the Tropospheric Zonal Wind Anomalies over the Global Region
Global region Pacific Basin wavelet analysis zonal wind El Niñ o/Southern Oscillation
2009/6/9
In our previous paper, an analysis of the El Niño/Southern Oscillation (ENSO) cycle associated
with the vertically-integrated equatorial tropospheric (1000-100hPa) zonal wind anomalies in diff...