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电离层响应
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  ionospheric response
     THE IONOSPHERIC RESPONSE TO THE MAGNETIC STORM ON JULY 8TH 1958
     1958年7月8日磁暴的电离层响应
短句来源
     THE GLOBAL IONOSPHERIC RESPONSE TO THE GEOMAGNETIC STORM EVENT DURING MAY 1998
     1998年5月磁暴事件期间全球电离层响应形态与机制的研究
短句来源
  ionospheric effects
     LOW-LATITUDINAL IONOSPHERIC EFFECTS DURING A MODERATE STORM BY TOMOGAPHIC IMAGING
     一次中强磁暴期间低纬电离层响应的CT成像
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  “电离层响应”译为未确定词的双语例句
     Monitoring the Effect of Solar Flares on Ionosphere by Means of GPS and Analysis of Some Results
     利用GPS对太阳耀斑电离层响应的监测和研究
短句来源
     This paper presents global magnetohydrodynamic (MHD) simulations of the solar wind-magnetosphere-ionosphere system, and discusses in turn the treatment of the ionosphere, the structure of the steady magnetosphere, the interaction between interplanetary (IP) shocks and the magnetosphere, and the response of the ionosphere to such interaction.
     本文开展太阳风—磁层—电离层系统的全球磁流体力学(MHD)数值模拟研究,依次分析电离层处理、定态磁层结构、行星际(IP)激波对磁层的作用,以及由此产生的电离层响应,并将模拟结果和相关观测事实进行比较。
短句来源
     The analyzing results indicated that the response of the ionosphere on the storm of March 31, on the whole, is positive storm phases;
     通过对2001年两次强磁暴期间电离层暴和TID的分析表明:3月31日磁暴的电离层响应整体表现为正暴相;
短句来源
     in contrast, the response of the ionosphere storm of April 11 is mostly positive phase effects on the higher latitudes and the exchange of positive and negative phase effects on the lower latitudes;
     而4月11日磁暴的电离层响应表现为主相期间正负暴相交替出现,恢复相期间以负暴相为主.
短句来源
     In this paper, we use a theoretical numerical ionospheric model to study the effect of N * 2 on the ionosphere during four time periods, each including both geomagnetically quiet and storm disturbed pe- riods, through considering and not considering the role of N * 2 in the numerical ionospheric model. The four periods simulated are (1) June 11~15, 1990; (2) May 14~20, 1997;
     本文利用理论电离层数值模型 ,通过考虑与不考虑N 2 的作用 ,对包括 1990年 6月、1997年 5月、1998年 5月以及 2 0 0 0年 4月磁暴事件在内的时间区间的电离层响应情形进行模拟研究 ,并与实测结果进行对比 .
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  相似匹配句对
     The Response of Ionospheric TEC to Small and Faint Solar Flares
     电离层TEC对小耀斑的响应
短句来源
     RESPONSE OF THE IONOSPHERE IN MIDDLE AND LOW LATITUDES TO THE STATE OF SOLAR WIND
     中低纬度电离层对太阳风状态的响应
短句来源
     Ionosphere over Shanghai
     上海的电离层
短句来源
     Frequency Response
     频率响应
短句来源
     Understanding of Emergency Preparedness and Response
     应急准备和响应
短句来源
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  ionospheric response
In addition, it is demonstrated that the ionospheric response to quasi-seven-day atmospheric variations is a more general phenomenon than was commonly believed before.
      
The time scales of the ionospheric response have been determined.
      
Ionospheric response to the partial solar eclipse of March 29, 2006, according to the observations at Nizhni Novgorod and Murman
      
Depending on the season of storn occurrence, the global morphology of the ionospheric response to major magnetic storm is very different.
      
The ionospheric response to the observed electron precipitation was simulated using an auroral model.
      
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  ionospheric effects
Study on the ionospheric effects with different heat-conditions
      
Results of the observations of the ionospheric effects of two solar flares in April 2004 performed using partial reflections are presented.
      
Ionospheric effects of the March 29, 2006, solar eclipse over Kazakhstan
      
The results of studying the ionospheric effects of the March 29, 2006, solar eclipse are presented.
      
The results of observations of the solar eclipse ionospheric effects on March 29, 2006, are presented.
      
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Eesponse of the inner magnetosphere and the ionosphere of middle and low latitudes to Bz variations of the interplanetary magnetic field is studied. It is pointed out that variations of the large-seale convective electric field in the magnetosphere arising from Bz variations will penetrate into the inner magnetosphere, and then map into the middle-low latitude ionosphere along magnetic field lines, producing a characteristic electric field and current system, which will distort the Sq current system and produce...

Eesponse of the inner magnetosphere and the ionosphere of middle and low latitudes to Bz variations of the interplanetary magnetic field is studied. It is pointed out that variations of the large-seale convective electric field in the magnetosphere arising from Bz variations will penetrate into the inner magnetosphere, and then map into the middle-low latitude ionosphere along magnetic field lines, producing a characteristic electric field and current system, which will distort the Sq current system and produce a measurable magnetic disturbance on the earth surface. Numerical calculation shows that when Bz<0,Sq current system Will shift eastward and toward high latitude, and a magnetic disturbance of a few gammas will be observed on the earth surface. This provides a posibility of diagnosing the state of solar wind and the magnetosphere by magnetic observations at middle and low latitudes. Besides, the above-mentioned mechanism can be used to explain some aeronomie phenomena in the equatorial region, such as variations of electron drift speed, equatorial magnetic anomaly, disappearance of equatorial-type sporadic E, etc..

本文讨论了行星际磁场B_2分量变化时内磁层和中低纬度电离层的响应.指出B_2变化引起的磁层大尺度对流电场的变化在一定条件下有可能透入内磁层,并沿磁力线映射到中低纬度电离层,在那里产生电场和电流体系,从而使S_q电流体系发生畸变,并在地面磁场中反映出来.数值计算表明,当△B_2<0时,S_q电流体系的焦点向东和向高纬移动,地面磁场会观测到数伽马的变化.这就为中低纬地磁观测诊断磁层和太阳风状态提供了一种可能性.此外,本文还用上述物理过程解释了赤道地区一些高空物理现象,如B_2倒转时电离层漂移速度的变化,赤道磁场异常以及赤道q型偶现E层的消失等等.

The indices of IMF, ground magnetic field and observations of ionospheric E-field are used to study the response of E-field in high and middle latitude ionosphere to variation of the solar wind and the magnetosphere. It is shown that although the electrostatic potential distribu-tion at the magnetopause driven by the solar wind can be directly mapped to the ionosphere along the magnetic field line to the polar cap boundary, the response of the ionospheric E-field at high and middle latitudes is a kind of relaxation...

The indices of IMF, ground magnetic field and observations of ionospheric E-field are used to study the response of E-field in high and middle latitude ionosphere to variation of the solar wind and the magnetosphere. It is shown that although the electrostatic potential distribu-tion at the magnetopause driven by the solar wind can be directly mapped to the ionosphere along the magnetic field line to the polar cap boundary, the response of the ionospheric E-field at high and middle latitudes is a kind of relaxation process related to the existence and development of the ring current.During the sudden southward turning of Bz, usually the ring current does not exist, or is very weak. There is a direct response in ionospheric ETfield. Within the period of southward Bz, however, when |Bz| increases, the response of the ionospheric E-field is a retarded one, because a large amount of the driving energy of the solar wind would be expended on supporting the inner magnetospheric process to enhance the ring current.When a southward Bz suddenly turns northward, the decay of the ring current, just like it's formation and increasing, needs certain relaxation time. Since the driving potential does, not exist now, the so-called region 2 field-aligned current caused by the discharge of the polarization of the ring current, becomes the unique source of the potential in the ionosphere.Some insight into the observed processes may be obtained from the circuit analogy and the simple model.

本文用行星际和地面磁场以及电离层资料,讨论了三次磁暴期间高、中纬电离层电场对太阳风和磁层内变化的响应。 分析表明,当IMF的B_x分量由北向转为南向时,太阳风驱动的磁层对流变化能直接反映出高纬电离层电位的变化。但持续南向的B_x再次增强时,太阳风输入的主要能量耗损于内磁层过程;电离层的响应表现为一个弛豫过程。当B_x由南转北时,环电流的消失对电离层的作用同样有弛豫的特点。此时,驱动电位已撤消,环电流是维持电离层电位的唯一外源。 本文用电路类比及简单模式法结论对上述几种实测情况进行了讨论。

In the paper the data from GPS-array are used to investigate the characteristics of ionospheric storms and TID associated with two severe magnetic storms occurring on March 31 and April 11, 2001. Wavelet technique is used to eliminate the long trend change of TEC and noise to pick out effectively weak ionospheric disturbances. The Statistical Angle-of-arrival and Doppler Method for the GPS array and the maximum entropy cross-spectral method are used in determinating the propagation parameters of TID. The analyzing...

In the paper the data from GPS-array are used to investigate the characteristics of ionospheric storms and TID associated with two severe magnetic storms occurring on March 31 and April 11, 2001. Wavelet technique is used to eliminate the long trend change of TEC and noise to pick out effectively weak ionospheric disturbances. The Statistical Angle-of-arrival and Doppler Method for the GPS array and the maximum entropy cross-spectral method are used in determinating the propagation parameters of TID. The analyzing results indicated that the response of the ionosphere on the storm of March 31, on the whole, is positive storm phases; in contrast, the response of the ionosphere storm of April 11 is mostly positive phase effects on the higher latitudes and the exchange of positive and negative phase effects on the lower latitudes; during the main phases of two magnetic storms all appeared TID lasting several hours and travelling from polar regions to the equator. Its main periods ranges from 37 min. to 41 min. and horizontal propagation velocity is about 372 m/s with the amplitude about 10~(16)e·m~(-2).

利用局域GPS台网数据,研究强磁暴引发的中低纬电离层暴和行进式电离层扰动(TID)的特征.应用小波技术从含有电离层总电子含量(QTEC)长趋势变化和噪声背景的原始数据中提取微弱的电离层扰动.采用动态极大熵互谱分析方法确定TID的传播参量.通过对2001年两次强磁暴期间电离层暴和TID的分析表明:3月31日磁暴的电离层响应整体表现为正暴相;而4月11日磁暴的电离层响应表现为主相期间正负暴相交替出现,恢复相期间以负暴相为主.两次磁暴主相期间都出现了持续数小时从极区向赤道传播的TID,其主周期为37~41min.幅度平均达1016e·m-2以上,水平传播速度约为372m/s.该结果说明,本文提出的GPS台网和数据处理方法能有效地监测和分析电离层暴和行扰现象.

 
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