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“磁阻力伞”三维数值模拟初步结果: 基于Bush于1958午提出的外加磁场与电离等离子体相互作用产生的电磁力可以增加高速进入黑障区飞行器的阻力,通过三维磁流体力学控制方程(MHD)数值仿真模拟,做了不同磁场强度条件的参数对比和受力分析研究,发现飞行器所受的...; 张绍华赵华杜爱民曹馨; 关键词：黑障数值模拟磁流体; 文献传递

Geomagnetic observatory monthly series,1930 to 2010:empirical analysis and unmodeled signal estimation: Ground-based magnetic observatory series are the main source of information for constructing time-dependent sp...; Jiaming OuNicolas GilletAimin Du; 文献传递

小尺度地磁场勒让德多项式建模方法被引量：6: 2012年; 根据地面实测地磁场数据,提出一种基于勒让德多项式的对小尺度地磁场的模型建立方法,结合数据预处理、最小二乘拟合方法,采用高阶的模型描述典型小尺度区域的地磁场,绘制出地磁图.通过实验验证,模型拟合实验点的数据与真实数据的磁场总强度平均误差小于30nT,并且反映出小尺度区域中磁场的精细结构,有效地抑制了边界效应,大大提高了地磁场建模能力.另外讨论了勒让德多项式建模方法的优缺点以及使用范围.这为地磁场在空间延拓、探矿、地下结构分析提供了重要的方法和理论基础.; 区家明杜爱民徐文耀洪明华陈耿雄罗浩赵旭东白春华王源; 关键词：空间分辨率勒让德多项式最小二乘

Evidence of transient reconnection in the outflow jet of primary reconnection site: The precise mechanism for the formation of magnetic islands in the magnetotail and the subsequent evolution ar...; R.WangR.NakamuraT.ZhangA.DuW.BaumjohannQ.LuA.N.Fazakerley; 文献传递

Modeling the Earth's magnetosphere under the influence of solar wind with due northward IMF by the AMR-CESE-MHD model被引量：1: 2015年; We present a newly developed global magnetohydrodynamic(MHD) model to study the responses of the Earth's magnetosphere to the solar wind. The model is established by using the space-time conservation element and solution element(CESE) method in general curvilinear coordinates on a six-component grid system. As a preliminary study, this paper is to present the model's numerical results of the quasi-steady state and the dynamics of the Earth's magnetosphere under steady solar wind flow with due northward interplanetary magnetic field(IMF). The model results are found to be in good agreement with those published by other numerical magnetospheric models.; WANG JuanDU AiMinZHANG YingZHANG TieLongGE YaSong; 关键词：MAGNETOSPHERE

Comments on "Interplanetary and geomagnetic parameters during January 16-26,2005" by R.P.Kane: We write this note of clarification to show that Kane(2012) has incorrectly interpreted the interplanetary mag...; A.M.DuB.T.TsurutaniW.Sun; 文献传递

Evaluation of a Revised Interplanetary Shock Prediction Model:1D CESE-HD-2 Solar-Wind Model: We modified the one-dimensional conservation element and solution element(CESE) hydrodynamic(HD) model into a ...; Y.ZhangA.M.DuD.DuW.Sun; 文献传递

小尺度地磁场勒让德多项式建模方法: 根据地面实测地磁场数据,提出一种基于勒让德多项式的对小尺度地磁场的模型建立方法,结合数据预处理、最小二乘拟合方法,采用高阶的模型描述典型小尺度区域的地磁场,绘制出地磁图.通过实验验证,模型拟合实验点的数据与真实数据的磁场...; 区家明杜爱民徐文耀洪明华陈耿雄罗浩赵旭东白春华王源; 关键词：空间分辨率勒让德多项式最小二乘; 文献传递

Simulated(STEREO) Views of the Solar Wind Disturbances Following the Coronal Mass Ejections of 1 August 2010: Images observed by the twin spacecraft Solar TErrestrial RElations Observatory(STEREO) A and B appear as compl...; Y.ZhangA.M.DuX.S.FengW.SunY.D.LiuC.D.FryC.S.DeehrM.DryerB.ZiegerY.Q.Xie; 文献传递

汶川地震前的地磁场日变化特征分析被引量：6: 2016年; 近来很多学者报道强地震前地磁日变化异常现象.本文利用地面地磁观测台站分析了2008年5月12日汶川ML=8地震前约37天的地磁场的日变化特征,探讨了地震前地下电磁感应磁场的相对变化.分析结果表明:1)在地震之前,成都台(CDP)观测到地磁日变化的形态与其他台站相似,未见与地震相关变化;2)CDP的Z/H高于周边台站,在4月20日Z/H出现一个最大峰值(>2.5);3)以4月20日为分界点,成都CDP台站的Z/H与恩施ENS台的Z/H的比值RCDP/ENS先增加后降低,周期越短变化趋势越明显.这些结果间接反映了震前CDP台地球内部电导率的变化信息.; 张凌杜爱民郎雪张铁龙杨冬梅赵旭东; 关键词：汶川地震地磁日变化

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国家自然科学基金(41174122)