Dimensional analysis of observed structures using multipoint magnetic field measurements: Application to Cluster

	Dimensional analysis of observed structures using multipoint magnetic field measurements: Application to Cluster
	Shi, QQ ; Shen, C ; Pu, ZY ; Dunlop, MW ; Zong, QG ; Zhang, H ; Xiao, CJ ; Liu, ZX ; Balogh, A
刊名	GEOPHYSICAL RESEARCH LETTERS
	2005-06-22
卷号	32 期号:12
英文摘要	[ 1] A new method is described to analyze the dimensional character of observed structures using multipoint magnetic field measurements of four or more spacecraft. The technique can provide three directions along which the magnetic field has the minimum, intermediate, and maximum derivatives if the magnetic gradient tensor G = del($) over right arrowB at every moment has been estimated by multipoint measurements. It follows that the structure's dimensionality and the variation direction can be directly determined. Both Cluster observations and simulations have shown that it is feasible to obtain the invariant axis orientation for two-dimensional structures such as flux tubes, and to find the normal directions for one-dimensional structures such as discontinuities. One advantage of this method is that these directions can be determined instantaneously, point by point in the time series, and so can be tracked through each observed structure. The analysis tool provides us a new perspective of the observed structures in the space.
收录类别	SCI
语种	英语
WOS记录号	WOS:000230169600001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7250]
专题	国家天文台_太阳物理研究部
作者单位	1.Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Space Weather, Beijing 100080, Peoples R China 2.Peking Univ, Inst Space Phys & Appl Technol, Beijing 100871, Peoples R China 3.Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England 4.Boston Univ, Ctr Space Phys, Boston, MA 02215 USA 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 6.Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England
推荐引用方式 GB/T 7714	Shi, QQ,Shen, C,Pu, ZY,et al. Dimensional analysis of observed structures using multipoint magnetic field measurements: Application to Cluster[J]. GEOPHYSICAL RESEARCH LETTERS,2005,32(12).
APA	Shi, QQ.,Shen, C.,Pu, ZY.,Dunlop, MW.,Zong, QG.,...&Balogh, A.(2005).Dimensional analysis of observed structures using multipoint magnetic field measurements: Application to Cluster.GEOPHYSICAL RESEARCH LETTERS,32(12).
MLA	Shi, QQ,et al."Dimensional analysis of observed structures using multipoint magnetic field measurements: Application to Cluster".GEOPHYSICAL RESEARCH LETTERS 32.12(2005).