搜索结果: 16-30 共查到“知识库 理学 Ionosphere”相关记录40条 . 查询时间(0.093 秒)
Characteristics of flux-time profiles, temporal evolution, and spatial distribution of radiation-belt electron precipitation bursts in the upper ionosphere before great and giant earthquakes
Earthquake precursors particle precipitation wave particle interactions
2015/8/24
The analysis of energetic electron observations made by the DEMETER satellite reveals that radiation belt electron precipitation (RBEP) bursts are observed in general several (~1-6 days) before a larg...
Attenuation of electromagnetic waves at the frequency ~1.7 kHz in the upper ionosphere observed by the DEMETER satellite in the vicinity of earthquakes
Waves and wave analysis Wave propagation
2015/8/24
The DEMETER satellite was the first satellite specifically dedicated to the recording of electromagnetic phenomena connected with seismic activity. Almost 6.5 years of measurements provide good opport...
Very Large Array Observations of Disturbed Ion Flow from the Plasmasphere to the Nighttime Ionosphere
Array Observations of Disturbed Ion Nighttime Ionosphere Space Physics
2012/5/29
We present the results of a multi-scale analysis of TEC fluctuations using a roughly five-hour observation of the bright radio source Virgo A with the Very Large Array (VLA) at 74 MHz in its B configu...
Modeling of the ionosphere response on the earthquake preparation
Total Electron Content seismogenic electric current earthquake precursors ionosphere UAM modeling
2012/5/17
Seismo-ionosphere coupling processes have been investigated considering the GPS observed anomalous ionospheric Total Electron Content (TEC) variations before strong earthquakes as their precursors. Th...
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 ...
Particle‐in‐cell simulation of incoherent scatter radar spectral distortions related to beam‐plasma interactions in the auroral ionosphere
incoherent scatter radar auroral ionosphere
2017/3/22
An electrostatic parallel particle‐in‐cell (EPPIC) code that allows for particle beam
injections and multiple boundary conditions is used to investigate the beam‐plasma
interaction and its manifesta...
Interaction of plasma cloud with external electric field in lower ionosphere
plasma cloud lower ionosphere
2017/3/22
In the auroral lower-E and upper-D region of the
ionosphere, plasma clouds, such as sporadic-E layers and
meteor plasma trails, occur daily. Large-scale electric fields,
created by the magnetospher...
Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere
Lithosphere-atmosphere-ionosphere coupling governing mechanism preseismic short-term events atmosphere and ionosphere
2009/12/14
We present a general concept of mechanisms of preseismic phenomena in the atmosphere and ionosphere. After short review of observational results we conclude: 1. Upward migration of fluid substrate mat...
Conjectured chaotic nature of the ionosphere-magnetosphere coupling in a reconfigurating magnetosphere
Conjectured chaotic nature ionosphere-magnetosphere coupling reconfigurating magnetosphere
2009/11/16
During substorms the magnetic field configuration changes in time; stretching of the magnetosphere during growth phase is followed by its collapse after the onset of the expansion phase. In this study...
Theory of localized bipolar wave-structures and nonthermal particle distributions in the auroral ionosphere
localized bipolar wave-structures nonthermal particle distributions auroral ionosphere
2009/11/13
Bipolar wave structures and nonthermal particle distributions measured by the FAST satellite in regions of downward current are interpreted in terms of the nonlinear evolution of a two-stream instabil...
Geometric aspects of HF driven Langmuir turbulence in the ionosphere
Geometric aspects HF Langmuir turbulence ionosphere
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...
Bayesian calibration of the Thermosphere-Ionosphere Electrodynamics General Circulation Model (TIE-GCM)
Bayesian calibration Thermosphere-Ionosphere Electrodynamics General Circulation Model
2010/2/5
In this paper, we demonstrate a procedure for calibrating a complex computer simulation model having uncertain inputs and internal parameters, with application to the NCAR Thermosphere-Ionosphere-Elec...
Apparent Diurnal Movements of the Trough in Total Electron Content (TEC) of the Ionosphere
Movements Trough Total Electron Content (TEC) Ionosphere
2009/6/15
Apparent Diurnal Movements of the Trough in Total Electron Content (TEC) of the Ionosphere.
Ionization Processes in the Lower Ionosphere during the Geomagnetic Storm on 16-17 December 1971
Ionization Processes Lower Ionosphere Geomagnetic Storm
2009/6/15
Ionization Processes in the Lower Ionosphere during the Geomagnetic Storm on 16-17 December 1971.
THE ROLE OF GEOMAGNETIC FIELD CONFIGURATION ON THE GPS SIGNAL PATHS THROUGH THE MAGNETOSPHERE AND IONOSPHERE
GEOMAGNETIC FIELD CONFIGURATION GPS SIGNAL PATHS MAGNETOSPHERE
2009/4/16
THE ROLE OF GEOMAGNETIC FIELD CONFIGURATION ON THE GPS SIGNAL PATHS THROUGH THE MAGNETOSPHERE AND IONOSPHERE。