磁暴

磁暴对GPS硬件延迟影响的研究

Study of Influence of Magnetic Storm on the GPS Hardware Delay

磁暴会导致大电网中产生地磁感应电流（Geomagneticinducedcurrent，简称GIC）。

Magnetic storm may induce Geomagnetic Induced Current in the power grids .

磁情指数K、磁暴与地震相关性统计分析

Analysis on the relationship between the magnetic index k , magnetic storms and the earthquakes

北京台磁暴出现频次及△Z/△H的初步分析

Preliminary analysis of the occurrence frequency and △ z / △ h of geomagnetic storms at Beijing Observatory

磁暴主相后期到恢复相初期，场向电流增大，AL指数减小。

From the main phase to initial stage of the recovery phase , the FACs increases with decreasing AL index .

关于利用行星际闪烁（IPS）观测进行地球磁暴急始预报的初步探讨

Preliminary results of predicting geomagnetic SSC by using IPS observations

磁暴期间，同一经度链的中低纬地区，夜间常发生多站同时的h′F突增。

During the magnetic storm in the mid and low latitude areas along a same meridian one can also see the nighttime simultaneous sudden enhancement of h ' F.

日侧极隙纬度VLF波的磁暴效应

The effect of geomagnetic storm on VLF emission at cleft latitudes

我们主要研究了这两次磁暴期间场向电流变化特征以及它与极光电集流指数AE之间的关系。

We study the current density of FACs and relationship between the FACs density and AE index in the storm time .

2000年4月6&8日磁暴期间电离层TEC观测研究

Observational study of Ionospheric TEC during the magnetic storm on April 6 & 8 , 2000

太阳活动引发地磁暴产生地磁感应电流（GIC）。

Geomagnetic storms caused by solar activity produce geomagnetic induced currents ( GIC ) .

行星际电场与Dst指数利用行星际监测数据进行地磁暴预报

CORRELATIONS OF Dst INDEX WITH THE INTERPLANETARY ELECTRIC FIELD Forecasting Dst Index With Artificial Neural Network

利用低纬地磁子午链上H和D分量的分均值数据，分析了2000年4月6日磁暴期间磁扰变化的纬度效应。

In this paper the latitudinal effect of geomagnetic disturbances during the geomagnetic storm on April 6,2000 is analyzed by using minutely averages of H and D components at low latitude geomagnetic meridian chain .

依据GPS台网观测数据，运用本文给出的电离层行扰分析方法，研究了发生在上述两个大磁暴主相期间的电离层行扰现象。

Thirdly , according to data from GPS-array , TIDs during the main phases of the two severe magnetic storms are studies by the method of analyzing traveling ionospheric disturbances introduced by the paper .

不同磁暴条件下GEO卫星表面充电电位分布（英文）卫星接收机中的安全以及电磁兼容设计

Distribution of spacecraft surface charging potential in plasma sheet at geosynchronous orbit during geomagnetic storms Safety and EMC Design Of IRD

此线的东北与西南，地磁湾扰、磁暴急始等短周期事件垂直分量的变化△z呈现反号。

△ Z ( Changes in the Vertical field ) for the sudden storm commencements and geomagnetic bays to the northeast and southwest of this line appear opposite in signs .

分析了应用磁暴月相二倍法计算的发震时间与1991年12月&1994年11月间全球发生的MS≥7.5大震的对应情况。

Analyses corresponding relation between origin time calculated by the two time method of magnetic storm related to lunar phase and M S ≥ 7.5 earthquakes from Dec.1991 to Nov.1994 in the whole world .

北京地磁中心台的磁暴急始为SC型，磁暴主相持续时间较短，变化较大。

At Beijing Ming Tombs Magnetic Observatory Center , the magnetic sudden commencement is SC , the magnetic main phase duration is shorter and the change is bigger .

两次磁暴期间，ENA通量的变化表现出一些重要的共同特征。

During the magnetic storms , ENA flux variation shows some important features that may be common for storms .

分别对磁静日、磁暴期间和全年数据的反演结果进行了分析，其中反演得到的卫星的硬件偏差与欧洲定轨中心（CODE）公布的结果进行了比较。

The derived TEC and the instrumental biases during the geomagnetic quiet days , a geomagnetic storm and the whole year of 2006 are analyzed respectively . The derived satellite biases are compared to those published by Center for Orbit Determination in Europe ( CODE ) .

结果表明，在磁暴主相和恢复相早期，出现了全球性的电离层F2层负相暴效应。

The results of data analysis showed that during the main and early recovery phases of the geomagnetic storm , a negative ionospheric F2 layer storm occurred globally .

本文得到的主要结论是：1.产生强主相SC磁暴的耀斑较强，主要集中在日面中心经圈附近；

The main conclusions are as follows ; 1 . The flares producing the storms with strong main phase are stronger . They concentrate mainly near the central meridian of the solar disk ;

磁暴在输电线路上产生地磁感应电流（GIC）对电力系统安全运行有很大影响。

The geomagnetism storm in transmission network produces the geomagnetism induction current ( GIC ), which has great influence on safe operation of power system .

在平静日和磁暴期间两种条件下利用实测数据的重建结果表明，GPS地面台网和掩星观测结合的电离层层析可以获得电离层电子密度在高度-纬度-经度-时间四维空间中的变化。

Reconstructed results based on actual observations under conditions of geomagnetic quiet and storm both show that variations of ionospheric electron density with height , latitude , longitude and time can be resolved by means of CIT with ground-based GPS network and occultation observations .

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；

The analyzing results indicated that the response of the ionosphere on the storm of March 31 , on the whole , is positive storm phases ;

磁暴越强烈，注入区高度越低，环电流区观测到的ENA通量越高；

The stronger the storm is the lower the particle injection is and the larger flux of ENA is emitted from the ring current region .

在磁暴发生后第2天VAI有一个明显的增加，然后下降，到第4天VAI下降到最小值。

VAI increases evidently when geomagnetic storms occur , then VAI decreases , and the maximum decrease occurs on the fourth day after geomagnetic storms .

本文基于磁暴起源的非线性机制，讨论了四种孤子模型：1.已知的Alfven波及相应的变形kdV方程。

Based on the nonlinear mechanism of magnetic storms , we discuss the four type models : 1.The modified kdV equation on the Alfven wave in a collisionless plasma .

由此看出，磁暴期间电离层TEC的变化直接与太阳扰动发生的时间及其对高纬电离层的耦合有关。

It is shown that the TEC variation is associated with the local time the solar perturbing occurred and the coupling of the ionospheric particles of high latitude with the solar particle .

重建结果清晰地显示了磁暴期间电离层负相暴效应，表明结合GPS地面台网和掩星观测的时变三维电离层层析可以有效地监测扰动条件下的大尺度电离层结构。

Ionospheric negative phase storm effects are exhibited in the reconstruction results during the magnetic storm . The study of present paper confirms that ( time-dependent ) 3-D CIT with ground-based GPS network and occultation observations is a powerful tool to monitor large-scale ionospheric structures under disturbed conditions .